Aug 23, 2007
Phenomenex is the winner of R&D Magazine's R&D 100 Award for the second year in a row...
 |
 | Sep 1, 2006
By:John V. Hinshaw
Gas chromatographs contain a large number and variety of fittings, ferrules, tubing, and connections, all of which must be properly assembled, tightened, and leak-free if the system is to perform at its best. This month, John Hinshaw discusses how to make, maintain, and troubleshoot various types of connections used in gas chromatographs.
|
 | Mar 1, 2006
By:John V. Hinshaw
John Hinshaw takes a look at the operating principles and inner workings of thermal conductivity detectors.
|
 | Ways to increase throughput for routine environmental analysis are explored, and several strategies aimed at enhancing laboratory productivity are highlighted and illustrated with from-the-floor applications.
Jun 1, 2005
By:Joeri Vercammen, Kelly François, Michèle Wolf, An Vermeulen, Katrien Welvaer
As environmental legislation becomes more stringent, the need to deliver quantitative results in shorter times and greater volumes is necessary for routine environmental analysis. Most of the high-throughput screening methods used to analyze pharmaceutical compounds are, however, useless for environmental monitoring. This is because these methods primarily aim to retrieve as much information from a single sample using the broadest range of techniques. The chromatographic separation process is considered to be the bottleneck in the process. This is not the situation for environmental procedures, in which the bottleneck is the sample preparation step and is usually very tedious and time-consuming.
|
Nov 1, 2004
This article describes the development of a method for the extraction, clean-up, and successful analysis of polybrominated diphenyl ethers (PBDEs) in fish tissue, soil, and water. A summary of the...
|
Sep 1, 2004
By:John V. Hinshaw
A reader sent me the following question by e-mail: As I read the recent article about the anatomy of a peak (1), I had to ask the following...
|
Jun 1, 2004
By:John V. Hinshaw
The human sense of shape and pattern recognition can discern subtle nuances among groups of visual cues that no computer system can reproduce faithfully. Yet when it comes to measuring...
|
Jun 1, 2004
By:Hanwen Wang, Wenmin Liu, Yafeng Guan
The guest authors validated an in-tube solid-phase microextraction (SPME) device, which was designed for on-line coupling with a capillary gas chromatography (GC) system, for the trace analysis of organic contaminants...
|
Mar 1, 2004
By:John V. Hinshaw
Gas chromatography (GC) is a highly sensitive and selective separation technique all by itself. Capable of resolving hundreds of components in a short time with part-per-million (ppm, one part in...
|
| 
