Recent Articles in Separation science - Articles and Application notes
Dionex Releases On-Line Library of Searchable Chromatographic ApplicationsJun 28, 2010
Dionex Corporation is pleased to announce that its new on-line library of searchable chromatographic applications-the D-Library-is now available on its website free of charge (registration required after introductory period).
Read MoreDionex Demonstrates Simplified IC Determination of Transition Metals in Borated Power Plant WatersJun 23, 2010
Dionex is proud to announce a new method for determination of ionic impurities in nuclear power plants that use pressurized water reactors (PWRs). Application Note 250: Determination of Trace Nickel and Zinc in Borated Power Plant demonstrates how to minimize corrosion and Waters Containing Lithium Hydroxide Using Nonsuppressed Conductivity Detection reduce maintenance costs using an ICS ion chromatography system with an IonPac® SCS column and Chromeleon® Chromatography Data System software.
Read MoreThermo Fisher Scientific Announces New Method for Simple and Accurate Analysis of Cadmium in ChocolateJun 21, 2010
Thermo Fisher Scientific Inc., the world leader in serving science, today announced a new method for simple and accurate analysis of cadmium in chocolate. The Thermo Scientific iCE 3500 atomic absorption spectrometer allows simple analysis of this trace element, while Thermo Scientific SOLAAR software enables easy method development.
Read MoreDionex Releases Application for the Analysis of Toxic Adulterants in Pharmaceutical and Personal Care ProductsJun 21, 2010
Dionex is pleased to announce the release of an application that demonstrates the determination of ethylene glycol (EG) and diethylene glycol (DEG) in a sorbitol solution using liquid chromatography with pulsed amperometric detection. Application Note 246: Determination of Ethylene Glycol and Diethylene Glycol in a Sorbitol Solution describes two confirmatory methods to determine 0.1% EG and DEG in sorbitol solutions.
Read MoreALMSCO International Demonstrates Precise and Reliable Analysis of Crude Oil Extracts with BenchTOF-dxJun 1, 2010
ALMSCO International today announced a state-of-the-art solution for the characterisation of crude oils over traditional gas chromatography-mass spectrometry (GC/MS) techniques. The BenchTOF-dx harnesses the power of comprehensive two-dimensional GC (GCxGC) combined with time-of-flight mass spectrometry (TOF-MS) and is capable of producing classical electron impact ionization (EI) spectra.
Read MoreThermo Fisher Scientific Introduces MetQuest Automated Metabolic Screening Software Allowing a Quantitative/Qualitative Workflow to Revolutionize Drug Metabolism and Pharmacokinetic Studies at ASMS 2010May 27, 2010
MetQuest software takes full advantage of the high-resolution accurate-mass data provided by Orbitrap technology to quantitate and identify compound and metabolites in a single injection
Read MoreDionex Releases Protein and Antibody Therapeutics and Nucleic Acid Therapeutics Application NotebooksMay 20, 2010
Dionex, the leader in liquid chromatography separations, is pleased to announce the release of two applications notebooks in PDF format: the Protein and Antibody Therapeutics Applications Notebook and the Nucleic Acid Therapeutics Applications Notebook.
Read MoreDNA measurements using the TrayCellMay 17, 2010
One of the most common applications of a UV/Visible spectrophotometer is to measure the concentration of nucleic acids. Often there is very little sample available and the researcher may not wish to dilute it further in order give sufficient volume for measurement in a standard quartz cuvette. There are ultra-micro quartz cuvettes available which will allow as little as 20μl of sample to be measured directly, however they can be quite difficult to use to achieve reproducible results. An alternative, if the sample is of a sufficient concentration, is to use a TrayCell.
Read MoreDionex Demonstrates Two Dimensional Ion Chromatography for the Determination of Total PhosphorusApr 28, 2010
Dionex is pleased to release Application Note 244 that demonstrates a simple, two-dimensional analytical technique for the analysis of total phosphorus. Application Note 244: Determination of Total Phosphorus Using Two-uses an IonPac® AS11-HC column to separate phosphate from a large excess of sulfate.
Read MoreThermo Fisher Scientific Offers Pure Water for a Wide Range of ApplicationsApr 26, 2010
Thermo Fisher Scientific Inc., the world leader in serving science, offers a range of purification systems to meet the needs of laboratories requiring Type II water.
Read MoreDionex Applications Demonstrate EPA Method 1664A Using the AutoTrace 280 SPE Instrument in Disk and Cartridge ConfigurationsApr 23, 2010
Dionex announces new methods for the extraction of oil and grease from water samples using the Dionex AutoTrace® 280 system in disk and cartridge configurations. Liquid-liquid extraction (LLE) and solid-phase extraction (SPE) are proven techniques that meet the requirements of EPA 1664A.
Read MoreDionex Application Improves Determination of Sulfate and Sulfamate in Topiramate Using Ion ChromatographyApr 14, 2010
Dionex announces a new method for determination of sulfate and sulfamate in a pharmaceutical preparation using Ion Chromatography. Application Note 238: Determination of Sulfate and Sulfamate in Topiramate Using a Reagent-Free, released in September, describes a method that uses a Reagent-FreeTM ion chromatography (IC) system Ion Chromatography System with the IonPac® AS11 column and suppressed conductivity detection for the determination of sulfate and sulfamate in topiramate.
Read MoreDionex Releases Their Updated Mass Spectrometry Applications GuideApr 8, 2010
Dionex Corporation is pleased to announce the release of the updated mass spectrometry (MS)applications guide. The new applications presented in the MS Applications Guide offer excellent analytical choices for separation scientists in the fields of water testing, health and safety, chemicals, and food and beverages.
Read MoreDionex Releases New Capabilities for Chromeleon 6.8 and Chromeleon 7.0 SoftwareMar 31, 2010
Dionex Corporation announces Service Releases that add new capabilities to two generations of the Chromeleon® Chromatography Data System software. New instruments supported include the capillary-capable ICS-5000 Ion Chromatography system, the UltiMate® RSLCnano Rapid Separation Nano LC systems, and the UltiMate 3000 FLD Fluorescence Detector.
Read MoreThermo Fisher Scientific Provides Fully-Automated Multi-compound and Multi-elementMar 25, 2010
Thermo Fisher Scientific Inc., the world leader in serving science, today announced the availability of a new easy-to-use isotope ratio mass spectrometry (IRMS) solution for the authentication of food and beverages.
Read MoreThermo Fisher Scientific Introduces New Microplate SpectrophotometerMar 23, 2010
Thermo Fisher Scientific Inc., the world leader in serving science, today introduced the new Thermo Scientific Multiskan GO UV-Vis spectrophotometer offering free wavelength selection for both 96- and 384-well plates and various types of cuvettes.
Read MoreReversed-Phase HPLC: Columns, Dimensions and Testing Part 1: Column selectionMar 22, 2010
This article provides some general principles to apply when considering the purchase of HPLC columns for use in the laboratory. The types of data obtained from column characterisation experiments are highlighted and the relevance of the data to the intended application is discussed. Part 2 will focus on selection of appropriate testing regimes.
Read MoreDETERMINATION OF PACLITAXEL IN HUMAN PLASMA BY XLC-MS USING SYMBIOSIS PHARMAMar 21, 2010
The SymbiosisTM Pharma is Spark Holland's unique solution for integrated on-line SPE-LC-MS automation (XLCMS). The system offers large flexibility in processing different types of samples selecting one of the three fully automated operational modes: LC-MS, XLC-MS, or AMD (Advanced Method Development). A sensitive, specific, accurate and precise assay was developed for the on-line extraction and determination of paclitaxel in human plasma by XLC-MS, using the SymbiosisTM Pharma
Read MoreDetermination of Chloramphenicol in eggs by XLC-MS using the Symbiosis Pharma SystemMar 21, 2010
SymbiosisTM Pharma is Spark Holland's unique solution for integrated online SPE-LC-MS automation (XLC-MS). The system offers large flexibility in processing different types of samples selecting one of the three fully automated operational modes LC-MS; XLC-MS; AMD (Advanced Method Development). This application shows a fast method development for Chloramphenicol with the use of the AMD mode of Symbiosis Pharma together with the HySphereTM method development cartridge tray (Spark p.n.0722.650).
Read MoreUltra low level determination of 25-mono-hydroxy-vitamin D2 and D3 in human plasma by acetonitrile- free XLC-MS/MS using the Symbiosis SystemMar 21, 2010
A fast, sensitive and simple method has been developed for the analysis of 25-mono hydroxy vitamin D2 (MHVD2) and 25-mono hydroxy vitamin D3 (MHVD3) in human plasma.
Read MoreDETERMINATION OF PAH IN GROUND, SURFACE AND DRINKING WATER USING SYMBIOSIS ENVIRONMar 21, 2010
Polycyclic Aromatic Hydrocarbons (PAH), a group of chemically related compounds, are known for their potential carcinogenic properties. In the environment these compounds are formed during pyrolysis and incomplete combustion processes. They are found throughout the environment in air, water and soil. The (by law enforced) maximum acceptable concentration level of PAH in water is approximately 10 ppt for each individual component.
Read MoreBinary prep. HPLC-system for processing large volumes of ureacontaining protein solutionsMar 18, 2010
Often client specific requirements for multipurpose equipment can not be solved with “off the shelf“ solutions. In this specific case, the Kronlab custom build approach proved very useful: every component has been specifically approved for the application at hand and following a specified procedure it is integrated into an LC system. The result is a made-to-measure system.
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