October 17th 2024
This review aims to provide a summary of the most current analytical techniques and their applications in per- and polyfluoroalkyl substances (PFAS) research, contributing to the ongoing efforts to monitor and mitigate PFAS contamination.
More Speed, Better Precision, Higher Sensitivity: Why Buy a New Gas Chromatograph?
September 1st 2004This article is an adaptation of one written in the German publication Nachrichten aus der Chemie and discusses how gas chromatography instrumentation, columns and techniques have improved over the past 10–15 years, making even relatively new equipment obsolete for many applications. In particular, the authors look at how older equipment is unsuitable for fast GC, better trace analysis and comprehensive multidimensional GC.
New Chromatography Columns and Accessories at the 2004 Pittcon Conference, Part II
June 1st 2004In the final of this two-part series examining trends in column introductions at the recent Pittcon 2004, Ron Majors looks at gas chromatography columns, sample preparation products, hardware, accessories and kits for chromatography and sample preparation.
The Evolution of the Application of Gas Chromatography
May 1st 2004In another of Ettre's historical examinations of the early days of gas chromatography, he discusses four major application fields in which the technique changed the way chemists perform analyses. These include hydrocarbon analysis, fatty acid analysis, flavour compounds and essential oils analysis, and environmental analysis. In addition, he also explains how GC helped in the evolution of liquid chromatography and in the development of the scientific industry.
Comprehensive Two-Dimensional Gas Chromatography
February 1st 2004The latest newcomer to the collection of GC techniques, GCXGC, is examined in this instalment. Although this technique is capable of delivering more GC information in a shorter time than other methods, its technical complexity has slowed down widespread acceptance. John Hinshaw explains...
Gas Buying 101 — Eliminating the Hassles Associated with Obtaining and Using Gases
January 1st 2004This month's "GC Connections" column provides advice on how to select the right gases and thus alleviate the problems associated with their use. It offers points to check with regard to gas grades, purities and impurities and how to ensure gas quality.
Strategies for GC Optimization, Part II - Columns
June 1st 2000In this month's "GC Connections," John Hinshaw examines optimization strategies for gas chromatography columns in the second installment of a multipart series. He starts with a question from a reader and then discusses broader column issues.