All News

The supply of HPLC-grade acetonitrile has been critically short for the past six months. Today the situation appears to be improving slightly, though pessimists predict that the shortage is here to stay.

The effects of the flow-rate on GPC/SEC experiments are shown and we give you the tips to control them.

Several approaches for purifying difficult samples more efficiently for discovery research support are mentioned in this paper. These approaches use mass triggered HPLC on various specialty columns.

Laboratory Equipment Qualification: Back to Basics Nicola Vosloo Confirming Peak Identification in Biological Studies Using Dual-Scanning MS Technology to Achieve Product Ion Confirmation Paul D. Rainville and Joanne Mather Meeting Review SFC for Pharmaceutical Analysis - Opportunity or Challenge? Melissa Hanna-Brown and Tom Lynch News Honey quality control, smoke detection in mummies, identifying PFCs in soil and water and the trace analysis of aromatic amines are featured in this issue. Market Trends and Analysis Market Profile: UHPLC Glenn Cudiamet Tips & Tricks: GPC/SEC How does the Flow-rate Influence GPC/SEC Results? Thorsten Hofe and Daniela Held Events

Agilent Podacst:Tip #6: Caring for your UV detector Flow Cells

LC•GC and Crawford Scientific are pleased to present a live preview of CHROMacademy at HPLC 2009 in Dresden. CHROMacademy is a primary on-line reference source for chromatographic and instrument troubleshooting.

Faculty of Health Sciences at the University of Copenhagen will open the doors of its new research centre, The Novo Nordisk Foundation Centre for Protein Research. The centre is the result of an historic donation from the Novo Nordisk Foundation, which in 2007 gave the university €80 million for its establishment.

The purity of the solvent used for the mobile phase is one of many factors affecting the quality of chromatographic data obtained from high-performance liquid chromatography (HPLC). A typical reversed-phase HPLC gradient elution requires equilibration of the column to the initial conditions with several column volumes of the weak (aqueous) solvent.

Upcoming events in the chromatography community as of June 2009.

News from the chromatography world.

How laboratories are coping with the shortage of this chemical commodity.

?Green? separation techniques have been going in and out of fashion since the early 1980s. Is the renewed interest in green chromatography marketing hype or is the chromatography community beginning to treat this topic seriously? Alasdair Matheson spoke to Chris Welch from Merck?s Separation & Purification Centre of Excellence in Rahway, New Jersey, to find out more.

ultrafleXtreme: Redefining MALDI Mass Spectrometry Performance-Bruker Application Note

NOVEL MULTI-MODE ODS HPLC COLUMN-Imtakt Application Note

Fast Analysis of Water-Soluble Vitamins-Thermo Application Note

In the automotive industry, thermodesorption is one of the approved testing methods identifying volatile and semi-volatile organic compounds in non-metallic car materials. Shimadzu combines thermodesorption system with GC–MS technology providing excellent precision and sensitivity?

The Chromatography Forum of the Delaware Valley has begun seeking nominations for the 2011 Dal Nogare Award. The award is given each year to an individual who is an example of an outstanding scientist in the field of chromatography.

Albumins are found in animal tissue, blood plasma, in bacteria and in plants, and include many important proteins with key functions in the body. ProSEC 300S columns from Varian, Inc. are designed for protein analysis and may be used to investigate a wide range of globular proteins, including the albumins, by size exclusion chromatography (SEC).

Instant column connector for capillary gas chromatography-NLISIS Application Note

Small-scale Purification using SFC ELSD -Thar Application Note

Since the USA Patriot Act* has been enacted, many pharmaceutical companies have reformulated their over the counter (OTC) drug products with phenylephrine (a nasal decongestant) as a substitute for pseudoephedrine.

Joining us for this discussion are Nelu Grinberg of Boehringer Ingelheim Pharmaceuticals, Inc.;Todd Palcic of TharSFC, a Waters Company; and Jelena Kocergin of Regis Technologies, Inc.

Analysis of Bumetanide-Varian Application Note

Determination of Phthalate-Varian Application Note

Owlstone Nanotech and Agilent Technologies have announced a phase one agreement to develop Owlstone's field-asymmetric ion mobility spectrometry (FAIMS) filter as a front-end separation module for Agilent's Accurate Mass time-of-flight mass spectrometers (TOF-MS).

Sugar alcohols require unique methods for analysis by HPLC due to their high polarity and lack of a UV-absorbing chromophore. USP methods for these separations take advantage of ion exclusion HPLC techniques. In this note, several different separations of sugar alcohols were performed us­ing ion exclusion Rezex RPM and RCU HPLC columns.

PerkinElmer and LEAP Technologies have entered into a resale agreement for ultra high performance liquid chromatography (UHPLC) and high performance liquid chromatography (HPLC) technology.

Glyphosate: Retention of Extremely Polar Compounds-Microsolv Application NOte