Aquilant Scientific (Presearch)

PAL SPME Arrow: New Dimension for SPME Analysis

2015-03-25T05:30:00.000+00:00

PAL SPME Arrow:

New Dimension for SPME Analysis

With the PAL SPME Arrow we presents a new technology for micro-extraction, offering trace level sensitivity combined with high mechanical robustness.

The PAL SPME Arrow offers

Superior SPME sensitivity: typically a 5-fold increase compared to conventional SPME
Excellent mechanical stability through patented design
Full protection of sorption phase material
Highest process safety due to a fully automated SPME process with PAL Systems

CombiFlash EZ Prep: Prep LC in a Flash

2015-03-20T17:22:00.000+00:00

New Teledyne Isco CombiFlash® EZ Prep

Streamline Flash and Preparative HPLC chromatography with a compact, easy-to-operate unit.

Easiest change from Flash to Prep HPLC system; in just two clicks from low to high pressure chromatography. Compatible with all HPLC columns to a minimum particle size of 5 microns for maximum purity.

Syringe Pump News Flash: New Pump Control for Ethernet/USB from Teledyne Isco

2015-02-09T11:01:00.002+00:00

The new Teledyne Isco D-Series syringe pump controller interfaces with all Teledyne Isco D-Series pumps to regulate precise, predictable flow and pressure control.

Key features:

Easy operation with "Smart Key" programming
Remote installation up to 50 feet away
4 pump operation
Support the new HPx Pump

D-Series Controller datasheet download available here

Now Shipping!

The 500 HPx Syringe Pump offers the highest flow rate at 5000 PSI available in our extensive product line. This pump is ideal for reactant feed and plastic extrusion applications.

Key Features:

Higher Flow Rate-408 mL/min
Higher Pressure-5000 PSI

Click here to download the 500HPx Datasheet

If you would like more information about these products contact us.

High Temperature Reactions with Thales Nano

2015-01-27T14:57:00.000+00:00

In chemistry, temperature is the most important physical parameter with which a chemist can achieve the activation energy needed to perform a reaction. It is also a well controllable parameter thus a reaction can be handled in a precise range. The Arrhenius says that with a 10°C in temperature the reaction rates double. Many reactions in chemistry need high temperature to reach the desired conversion or yield, but with traditional batch equipment chemists can only reach 250-280°C in a safe environment. With this parameter barrier numerous reactions are unavailable or take long time to fulfil.

High Temperature Instruments

One of the most important properties of flow systems is that they can work with small spaces under pressure. In this environment temperature can be safely elevated higher than in batch flasks. Because the instruments can build high pressure the solvent can be heated high above its boiling point while it stays in liquid phase. These circumstances enable reactions which are impossible to perform in batch.

Thales Nano's new Phoenix Flow Reactor can work up to 450°C in liquid phase using SS loops (4, 8 or 16mL) or catalyst cartridge system (ThalesNano's CatCarts®, MidiCarts or 125mm and 250mm SS catalyst cartridges). With a Phoenix Flow Reactor-H Cube Pro online system, the chemist can work up to 100bar safely. Reactions such as N-alkylation with alcohols on Raney Nickel catalyst work over 250°C in minutes with good selectivity and yield.

Thales Nano's Vacuum Flash Pyrolysis reactor can reach even higher temperatures and pressure. With this instrument the reachable temperatures and pressure is up to 1000°C in vapour phase using high vacuum at the collecting side. Preheating the staring material, it evaporates in the inner volume of the vesse, and in vacuum the reaction occurs in milliseconds. Numerous heterocycle synthesizes via ketene intermediate were performed this way. The VFP reactor can work in liquid phase too, with a 400mm SS catalyst filled cartridge. In this case a 400 bar HPLC pump contains the pressure and the flow rate.

For more information click here or to make an enquiry please contact us.

PAL RTC Highest Productivity

2015-01-15T13:44:00.001+00:00

The PAL RTC with Robotic Tool Change is the logical (r)evolution of the successful PAL-xt product line. Sample prep for chromatography is no longer the bottleneck-automate your sample prep and sample injection-all on the PAL RTC.

The robotic change of tools enables unattended 24/7 operation, even for multi-step workflows and thereby greatly increases the productivity of labs. At the same time process safety is optimized since all operations become traceable.

Automation is the way to increase productivity and (process) safety in the laboratory. Transferring repetitive or dangerous manual tasks to a robot improves safety. The possibility to run the instrument 24hr/day increases throughput, especially for long sample preparations.

The PAL RTC was developed to maximise productivity in analytical and clinical labs. Robotic Tool Change(RTC) brings sample preparation to a higher level. Every process requires a number of different tools for best performance e.g. a 10µL syringe for the accurate addition of samll volumes followed by the dilution with a 1mL syringe. Robotic Tool Change allows to switch between different tools automatically.

The additional versatility in combination with the large number of available tools enable the design of tailored automation processes.

Enquire now by clicking here.

New Syringe Pump Controller by Teledyne Isco

2014-12-17T12:28:00.001+00:00

The new four-pump control and RS485 Modbus support adds even greater flexibility:

Control up to four pumps
Operate two continuous flow systems simultaneously
Add four reagents with one system
Easily interface pumps with PLC systems

For more information contact us now.

Teledyne Isco Syringe Pump Webinar: Pump Customization

2014-12-12T16:09:00.001+00:00

Please join us Tuesday, December 16th at 11:00am (CST) for this informative webinar

Teledyne Isco provides many custom configurations to the Syringe Pump Products to meet our customer's needs. This webinar presents a few of the most popular modifications including changes to the pump ports, different valve options, magnetic stirrers and software additions changes.

Please use this link to register for this webinar:

https://teledyneevents.webex.com/teledyneevents/onstage/g.php?MTID=eeb8562f4e64636228ddf464c696180af

Dry samples improve resolution in normal phase flash chromatography

2014-12-08T15:09:00.000+00:00

Factors which affect the purification efficiency of flash chromatography include sample homogeneity and sample concentration, among others. When the compound and reaction by-products are over-diluted or dissolved in too polar a dissolving solvent, the compound peak broadens which leads to loss of resolution.

This application note demonstrates that preparing dry samples using RediSep solid load sample cartridges improves peak resolution over liquid injection techniques.

For more information click here

In-situ Injection of Hydrogen Gas in the Opalinus Clay

2014-10-24T05:00:00.000+01:00

Teledyne Isco Syringe Pump Application note # 43

Steel components are generally used in the design of deep geological repositories for high-level radioactive waste. After closure of the underground disposal galleries, anoxic corrosion of steel is expected to produce hydrogen gas. Studies are performed to evaluate what will happen to this hydrogen in an underground repository. Among these studies is the “Hydrogen Transfer” (HT) experiment, which was implemented in 2009 in the Mont Terri Rock Laboratory to study in-situthe diffusion of hydrogen in Opalinus Clay. A second objective of this experiment was to evaluate whether hydrogen could be consumed by chemical reactions with the rock.

This application note describes the hydrogen injection set-up and controlling the mass balance using a Teledyne Isco syringe pump and the DCAM software.

Read Application Note

Teledyne Isco Syringe Pumps

Pump almost anything! Teledyne Isco syringe pumps give you precise, reliable metering for an incredible range of applications. You’ll easily handle viscosities from liquefied gases to tar, flow rates from sub-microliter to 400 ml per minute, and pressures to 20,000 psi (1380 bar).

Use these rugged, do-anything pumps to solve your toughest fluid delivery problems, from micro-flow to scale-up and pilot plant, pumping corrosive liquids, and safe operation in explosive atmospheres with the HL Series.

• Core Flooding
• Reactant Feeding
• Supercritical Fluids
• HPLC and Ultra-HPLC
• Alternative Energy - Biomass

Visit our website to learn more about Teledyne Isco Syringe Pumps

AZURA HPLC Educational System: How do you explain HPLC?

2014-09-25T05:00:00.000+01:00

With the Knauer AZURA Educational system, tomorrow's HPLC professionals learn injecting a sample, pumping, separating, detecting, and analysing data on a modern compact HPLC system.

Clear, modern and cost-effective

The AZURA Educational system supports schools and universities in their efforts to teach chromatography in theory and practice. The Education system includes:

Isocratic HPLC system with manual injection valve, pump,
HPLC column and UV detector as well as eluent tray and solvent bottles
Laptop and the HPLC software ClarityChrom
Training material: flow chart for installation and capillary connection, detailed application note and video tutorials

A Simple, low cost system specially design for schools and universities.

More information>>

SPME fibres are now available from Aquilant Scientific (Presearch)

2014-07-31T15:07:00.000+01:00

Introductory offer-10% discount online (Promo code SPME10)

In the few years since its introduction, solid phase microextraction (SPME) has become a practical alternative for sample preparation for gas-chromatography. SPME reduces the time required for sample preparation and eliminates the use of large volumes of extraction solvents

Now SPME fibers are available from the manufacturer of the CombiPAL, CTC Analytics.

Key points:

All Fibers have a standard length of 10mm and the core material is Fused Silica
The Fibers can be used for a wide range of GC and injector models
The Fiber assortment and range of applications will be constantly expanded and developed

The PAL COMBI-xt and PAL RTC/RSI provides fully automated SPME sample preparation process. All movements of the SPME fiber from precondition, adsorption and desorption are precisely controlled for optimum performance.

PAL SPME Fibers - Order Online
PAL SPME Fibers - Order Online
Part No.	Description	Color Code	Coating	Qty	Needle
FIB-A-85/10-P3	Acrylat SPME fiber (Polyacrylat)	Grey	85µm	Set of 3 Fibers	23 ga
FIB-C-WR-95/10-P3	Carbon WR SPME fiber (Carbon Wide Range)	Light Blue	95µm	Set of 3 Fibers	23 ga
FIB-P-100/10-P3	PDMS SPME fiber (Polydimethylsiloxan)	Red	100µm	Set of 3 Fibers	23 ga
FIB-P-30/10-P3	PDMS SPME fiber (Polydimethylsiloxan)	Golden	30µm	Set of 3 Fibers	23 ga
FIB-P-7/10-P3	PDMS SPME fiber (Polydimethylsiloxan)	Dark Green	7µm	Set of 3 Fibers	23 ga
FIB-SEL5-S1	Fiber Collection – Development Kit (1 Fiber of each Fiber Type \| Set of 5 )

Advances in Automation: Hanson Highlights

2014-06-26T14:29:00.000+01:00

The Vision G2 instrument family provides a complete solution for the busy dissolution lab. 6 and 8 vessel testers, precision autosampling and collection, flexible protocols for a wide range of applications, space-saving platforms, and rock-solid mechanics make these systems ideal for both R&D and QC. Colour touchscreen programming is easy to learn and operate, and protocols can be transferred on a convenient flash drive or via network. Vision G2 dissolution test instruments are designed for seamless integration, ease of use, maximum productivity and confidence in years of reliable results.

Vision Classic 6, AutoPlus & AutoFill, Vision Elite 8

If you work in a busy dissolution lab that demands both speed and accuracy, we've got the perfect media-prep system for you. The Hanson Media-Mate Plus delivers preheated, filtered, deaerated, volumetrically dispensed media to six or seven dissolution flasks in less than five minutes. Built on a unique ergonomic cart, the Media-Mate Plus offers maximum portability for easy servicing of many dissolution test stations.

Media-Mate Plus

Hanson Highlights:

Hanson introduces new Vision AutoFilter (tm) Changer for automated filter management during dissolution tests.
View more details

Hanson introduces new Vision Microette (tm) for automated diffusion cell testing of topicals and transdermals.
View more details

Take a look at all the Hanson products available now!

Below are the Hanson Research and Aquilant Scientific Technical Partnerships:

For more information contact us.

PicoChip/PicoFuze - NanoSpray just got a whole lot easier

2014-06-16T15:28:00.000+01:00

What is PicoChip®?

It's all of the items you're using now - electrospray emitter, chromatography column, high-voltage union, and transfer line - but instead of having to assemble all of that yourself, we've done it for you.

A Complete Nanospray System starting at just £965.00

Inside - PicoChip® is the workhorse

The industry-proven PicoFrit is a pulled-tip emitter, that is factory-fritted to provide a stable base for the chromatography bed. The frit ensures that the chromatography media is distributed evenly and that individual particles do not lodge into the taper or occlude flow.

No fiddly-bits

The PicoFrit, the voltage union, the fused-silica tubing; they're nothing new, right? What's new is that they are all assembled and ready for use right out of the box - factory-tested connections, flow-tested columns, machine-inspected tips. From Box to Data Collection in Five minutes.

Watch our video to see how easy it really is!

Through-the-Roof Sensitivity

The pulled-tip format of the PicoFrit column inside the PicoChip®? means that there is no post-column loss, no post-column mixing, and therefore no band-broadening. You're spraying right off of the end of the column, after all, so peaks are sharper and sensitivity goes way up.

Column Dimensions

PicoChips can be ordered with a wide variety of column inner diameters (IDs) as well as tip sizes, to enable full flexibility and control over experimental setup.

Chromatography Media

PicoChip columns can be packed with any of our other high-quality in-house media, including; ProteoPepII Ca8 5μm 300Å, ProteoPep III 1.8μm 80Å, HALO® (all varieties), Inertsil® ODS-3 and ODS-4, Titansphere®, Reprosil-Pur, and MAGIC AQ®. See complete list of chromatography media available.

Ordering Information

P/N: PCH-555-SK
Description:
PicoChip Starter Kit Includes:

1X PicoChip source compatible with Thermo Ion Max-enabled mass spectrometers, such as LTQ, Orbitrap (including Q Exactive) and TSQ instruments.
• 2X PCH7515-105H354 PicoChip columns: 75 μm ID x 15 μm tip ID x 105 mm ReproSil-PUR 3μm 120 Å C18 AQ.
• 1X Vial of PicoSure Standard, 8-Peptide Mixture, equimolar, 100pmol

Coming soon

If you like electrospray, you'll love nanospray!

“The Source = The Column, The Column = The Source = Column Heater”

PicoFuze delivers the high performance of nanospray with an easy-to-use format. Ease of use meets high performance!

PicoFuze leverages market proven and patented PicoFrit column technology to meet the cycle time and through-put requirements of quantitative bioanalysis. Quantitative nanospray LC/MS.

Contact Us for More information on the PicoFuze

For any enquiries please contact us

Synthesize, Identify and Purify

2014-05-07T10:29:00.002+01:00

H-Cube Pro- Higher throughput, greater reactivity, expanded chemistry capability

The H-Cube Pro can be used to increase productivity in the hydrogenation of D-glucose to D-sorbitol which is believed to be a key intermediate in biofuel production. Hydrogen is generated in situ through electrolysis of water. Both the use of elevated temperature and increased concentration were proven to be advantageous for the outcome of the reaction, resulting in higher selectivity of the desired compound and higher throughput over the H-Cube system. Click here for more information.

Comparing H-Cube Pro to the H-Cube

The H-Cube Pro improves upon the original H-Cube by offering greater hydrogen production (up to 60mL/min) for higher throughput, wider temperature range (from 10-150°C) including for the first time active cooling for more selective reactions. The reaction of 2, 4-dinitroanisole was chosen as a model reaction to compare the two systems because the reaction has high hydrogen demand since it involves the reduction of two nitro groups. Click here for more information.

Combifash Rf+ PurIon

The Combiflash Rf + PurIon takes the guesswork out of your purification routine with mass directed purification. Identify your peak of interest at the time of elution with the advantage of targeted fraction collection. For applications on this product keep reading.

Mass spectrometers (MS) have long been used for detection and collection when coupled with LC. Nearly universal detection of compounds is achieved when MS is combined with UV detection. The introduction of lower-cost mass spectrometers allows automated flash chromatography to enjoy the advantages of mass directed purification. These include a collection of only the desired product utilizing a targeted molecular weight as a trigger. For natural products known compounds can be identified and ignored during purification allowing the chemist to isolate only those materials with molecular weights that would suggest they are novel. Synthesis of Benzidine and purification by extracted ion current was carried out for. Click here for more information.

Reverse phase liquid chromatography –mass spectrometry (LC-MS) has become a routine technique in today’s laboratory. A study involving experimental flash chromatography-mass spectrometry (FCMS) system being used with both normal and reversed phase solvent systems to screen for novel compounds during purification. The purification of an extract of Curcuma longa is used as a model for other extracts due to an interest in compounds from this plant for anti-inflammatory, anti-oxidant, and natural coloring activities. By using a mass spectrometer as a detector, potentially interesting compounds can be easily identified, prioritized and purified in sufficient quantities to allow evaluation for biological activity. Click here for more information.

Teledyne ISCO Syringe Pump: Pumping and Processing Biomass

2014-03-04T12:06:00.001+00:00

Pumping Biomass

The process of converting biomass into alternative fuels and chemicals relies on laboratory modelling of real-world conditions. It is essential for systems to have steady, scalable proportioning and accurate flow rates that are needed for bench scale reactor testing of processes such as pyrolysis and gasification of organic materials. Another requirement is the ability of systems to handle varying ranges of viscosities and particulate content when breaking down biomass materials.

Teledyne Isco syringe Pump systems have been used to determine degrees of slurry thickness. In one particular example a dual systems using 500HV (High Viscosity) pumps were used equipped with larger ports for reduced flow resistance and improved filling. The complete system included the following components; a controller, two pump modules with dual air ball valves, a refill inlet and an outlet linked via tubing. Customized software was developed to enable successful processing. This allowed the controller to prevent backflow from the inlet valve at the end of a pumping cycle. Isco pumps can be custom designed to meet your requirements for desired results and processing

For more information on Teledyne ISCO Syringe Pumps contact us at Aquilant Scientific.

Processing of Biomass

Feeding of biomass material at high temperature and pressure requires precise control and delivery; this can be a major technical challenge. This is due to the majority of available pumps only operating at low temperature and low pressure (<100ml/min).

The Teledyne Isco 1000D syringe pump was used in an experimental procedure to test the temperature and flow rate parameters. A variety of biomass materials such as algal, cellulosic and lignocellulosic were fed through the pump system at temperatures up to 300°C and flow rates between 10 -300ml/min.

Equipped with a high temperature package, the 1000D pump system enabled the high temperatures and the flow rates to be reached. The biomass samples fed through the system contained both soluble and insoluble components. This can lead to problems however addition of the high temperature upgrade ensures uniform concentrations and prevents precipitation of certain biomass components in the pump. Another useful feature of the Teledyne Isco pump is the ability to operate at constant pressure or constant flow. This allows evaluation of system performance under two independent operating parameters, which is required to better understand the critical factors impacting biomass processing.

For more information on any of the products mentioned contact us at Aquilant Scientific.

Webinar invitation: Beyond Silica Gel: Other Media for Flash Chromatography

2014-02-11T15:15:00.000+00:00

Teledyne Isco is hosting a webinar on February 13th, 2014 at 12:00pm (CST). The topic discussed will be:

Beyond Silica Gel: Other Media for Flash Chromatography

Silica gel is the most commonly used media for flash chromatography, but its use doesnt always correlate to a successful purification. The use of other media allows the purification of delicate compounds that are not resolved on silica. This webinar will cover method development and use of C18 columns, Diol, Amine, Cyano, and Alumina. In addition, examples of aqueous normal phase will be presented.

C18 Columns

To register please click here.

Advances in Automation

2014-01-30T14:34:00.001+00:00

Pharmaceutical tablet testing made easier for you

Aquilant Scientific provide manual and automated dissolution testing systems and tablet testing instruments for a range of industries including the pharmaceutical, medical device, biopharmaceutical and dietary supplement industries. Our two main suppliers Hanson and CambTEK provide these products. Hanson Research is a world leader in dissolution test technology for the pharmaceutical industry. Founded in California 1951 by Bill Hanson, Hanson product line has grown due to a combination of pioneering research and innovative technology to result in high quality products.

The latest product is the new Vision AutoFilter which is an automatic filter changer. It automatically introduces 25mm syringe filters into the fluidic path of your dissolution samples, bringing a new approach to automated filter changing with the option of adding, removing, reusing and discarding filters at the touch of a button or within your programmed protocol. Comes standard with 10-inch and 15-inch filter stack tubes, so you can decide which capacity is ideal for your lab.

This will be exclusively available in March. For more information Contact us.

CambTEK RES Next generation sample preparation automation

The CambTEK Rapid Extraction System RES is at the cutting edge of fully automated sample preparation of solid dosage forms, in development and quality assurance laboratories, and manufacturing environments. From Phase 1 Development through to Manufacturing Quality Assurance, the RES will improve quality of data, and increase productivity.

Quick and robust methods to obtain quantitative data are essential for efficient quality control (QC) processes. In the case of content uniformity (CU) QC testing of solid dosage forms, the process by which samples are prepared and then analysed can be highly dependent upon the ability of the analytical chemist to manually prepare samples with high accuracy and repeatability.

To achieve high accuracy the analytical chemist can be required to perform very precise manual dilutions of the extracted active pharmaceutical ingredient (API) prior to analysis of the prepared sample. The majority of CU tests performed are undertaken using manual approaches. In order to automate this process it is imperative that the chosen automation is capable of delivering comparable or better sample preparation and that the benefits of automation such as repeatability and productivity are easily obtainable.

To achieve high accuracy the analytical chemist can be required to perform very precise manual dilutions of the extracted active pharmaceutical ingredient (API) prior to analysis of the prepared sample. The majority of CU tests performed are undertaken using manual approaches. In order to automate this process it is imperative that the chosen automation is capable of delivering comparable or better sample preparation and that the benefits of automation such as repeatability and productivity are easily obtainable.

A sample preparation of 500mg paracetamol tablets was carried out using the CambTEK® RES. Using automated sample preparation and Mass Spectrometry (MS), a robust, quick and accurate process was envisaged that could be used for CU analysis of solid dosage forms (SDF). The CambTEK® RES was used to produce a series of paracetamol extracts at 12.5, 25, 37.5 and 50 μg/mL. Each sample was analysed by the Microsaic MiD® using SIM mode with a count time of 50 ms per channel. The resulting data showed excellent linearity from the RES sample preparation and a potential approach to quantitative analysis of API.

For more information on this product and its application contact us.

PicoSure: Test Standard for Nanospray LC-MS

2014-01-27T04:30:00.000+00:00

Introducing New Objective's latest tool for high-performance nanospray LC-MS, PicoSure. This custom-crafted equimolar mixture of 8 synthetic peptides will help provide confidence that your nanospray experiment is valid and therefore will provide optimal results

Peptide standard to certify your column and ensure results
Equimolar mixture of 8 protease-free, high-purity, synthetic peptides
Peptides elute throughout the chromatographic gradient
Use regularly to assess your column's performance and validate your system
Dilute and shoot: ready to use, just add mobile phase!

New Idex Health & Science catalogue 2014: Request your copy

2014-01-22T06:00:00.000+00:00

Applications with High Precision Syringe Pumps: Alternative Energy and Carbon Sequestration

2014-01-20T04:30:00.000+00:00

As the worldwide demand for energy continues to grow, alternative energy research has become increasingly important. The development of cost effective and efficient processes for the conversion of renewable energy sources such as biomass is needed. Research will also be necessary to develop improved methods for carbon capture and carbon sequestration.

R&D: Bench-Scale and Pilot Plant Systems

Steady, scalable proportioning and accurate flow rates are essential for bench-scale reactor testing of processes such as pyrolysis and gasification. System components must handle a wide range of viscosities and particulate content.

Flexible and Scalable Proportioning

Since 1971, Teledyne Isco has provided customers in the energy, chemical, and pharmaceutical industries with pumps that can handle a wide variety of fluids:

Aqueous and organic liquids
Corrosive solutions
Liquefied gases
Slurries and pastes
Heated fluids
Viscous fluids

Precision Fluid Delivery

Isco’s high precision pumps help you to meet demanding requirements:

Continuous, pulseless feeds at flow rates from sub-microliter to 400 ml/min
Accuracy of 0.5% or better
High temperatures up to 200 C
Pressures from atmospheric to 20,000 psi

Application Examples

Removing contaminants from syngas to extend catalyst life
Pumping Biomass Slurry into bioreactor for conversion to biofuel
Precise pumping of polyoils to produce hydrogen from biomass
Thermochemical conversion of wood chips to Ethanol
Producing synthetic fuel from fats, oils, & grease using Fischer Tropsch process

Teledyne Isco Application Notes

Exploring New Energy Concepts Using Teledyne Isco Syringe Pumps
Pumping Biomass
Hot Water Pretreatment of Lignocellulosic Biomass
Acid-Catalyzed Aqueous-Phase Conversion of Biomass
Processing of Aqueous Biomass
Processing Algae Biomass to Form Biopolymer By-products

Or visit our website for more information

UCT Oil and Grease extraction (EPA 1664)

2014-01-16T06:00:00.000+00:00

The UCT solid phase extraction cartridge for Oil & Grease Analysis is designed to provide a new level of performance. With its special filter design, superior flow and high capture efficiency can be achieved with the dirtiest samples. Part #: ECUNIOGXF

Introducing the CombiFlash Rf+ PurIon (Webinar)

2014-01-15T07:00:00.000+00:00

A webinar presentation on Teledyne Isco's CombiFlash Rf+ PurIon Flash Chromatography/Mass Spectrometry system. In this recording, Ron Lewis presents benefits of mass directed compound purification with this system.

For more information on the CombiFlash Rf+ PurIon visit our website

Pumping salt solutions and brines with Teledyne ISCO Syringe Pumps

2014-01-09T12:25:00.001+00:00

A brine is defined as an aqueous solution containing higher concentrations of inorganic salt than typical seawater(greater than 5% salt). Simpler brines generally contain common chlorides such as sodium, calcium or potassium, and may be used in applications such as the oilfield industry and production facilities. Denser solutions containing zinc bromide, caesium formate, or iodine salts, can also be used in industrial applications, but are generally more corrosive.

ISCO syringe pumps are designed to pump a wide range of fluids, with standard hardware made of Nitronic 50®, a nitrogen-strengthened stainless steel originally developed for marine applications in solutions with sodium chloride concentrations of up to 3%.

To avoid the corrosive effects of salt solutions such as seawater, brines and buffers used in core flooding and other applications, regular flushing of pump cylinders is always recommended. However, applications with higher concentrations and/or more frequent use of salt solutions may also require a wash gland or special wetted materials such as Hastelloy.

Cylinder Purging and Washing

With each upward piston stroke, the inner surface of the cylinder is wetted with a thin film of liquid. A brine solution will corrode the inside of the cylinder and may damage the seals as it dries. Lower flow rates cause more corrosion due to the liquid film having a longer drying period. A number of techniques and options are available with ISCO pumps.

Flushing

The standard Nitronic 50 pump cylinder can withstand many corrosive fluids. To minimize corrosion, flush the cylinder at the end of every experiment.

Wash Gland

For additional corrosion protection and to improve seal life, the pump can be equipped with a wash gland for flushing the cylinder of any residue from pumped liquid. The wash gland is a standard feature in the Model 1000D pump and is available as an option on the 500D and 100DM pump.

Illustration of ISCO 1000D wash gland operation

Hastelloy Upgrade

For ultimate corrosion resistance, any of the ISCO pumps can be manufactured from Hastelloy C-276 and specified so that the entire wetted flow path is Hastelloy.
For more information on Teledyne ISCO syringe pumps please contact us

UCT Quechers Information Booklet

2013-12-11T06:30:00.000+00:00

The method of extracting pesticide residues from food samples and preparing them for analysis is a time consuming, expensive, and labor intensive process. To address this problem, new multiresidue methods such as the QuEChERS method have been developed to accommodate the increase in sample loads. This new Multiresidue method has yielded an increase in laboratory throughput while also improving analytical sensitivity.

Improved throughput has been accomplished primarily by enhanced sample cleanup products that reduce potential interferences to yield cleaner chromatograms and reduced potential instrument downtime.

QuEChERS (pronounced Catchers), an acronym for Quick, Easy, Cheap, Effective, Rugged and Safe, is a sample preparation and clean-up technique for the analysis of multiple pesticide residues in high moisture food samples.

UCT provides a variety of solid-phase QuEChERS clean-up products that contain the proper sorbents for optimum extraction, clean-up and separation of analytes from complex matrices.

Visit Our website to download the UCT QuEChERS Booklet ►

Application Note: Solid-Phase Extraction of Pesticides in Water using Graphitized Carbon Black (GCB)

2013-11-20T05:30:00.000+00:00

Enviro-Clean® cartridges are designed for use by analysts that demand a clean, dependable and rugged product for low level environmental analyses. With our wide selection of sorbents and clean proprietary polypropylene cartridges, Enviro-Clean has a cartridge to fit every analysts need.

Graphitized carbon black (GCB) is a reverse phase and anion exchange sorbent. GCB retains non-polar compounds, such as organochlorine pesticides, and some very polar compounds, such as surfactants, which are difficult to retain by other reverse phase sorbents. This simple SPE method uses UCT’s proprietary, treated GCB for the determination of pesticides in water providing excellent recovery.

Application Note ►