The chemical analysis of organic compounds in environmental samples is often targeted on predetermined analytes. A major shortcoming of this approach is that it invariably excludes a vast number of compounds of unknown relevance. Nontargeted chemical fingerprinting analysis addresses this problem by including all compounds that generate a relevant signal from a specific analytical platform and so more information about the samples can be obtained. A DHS−TD−GC−MS method for the fingerprinting analysis of mobile VOCs in soil is described and tested in this article. The analysis parameters, sorbent tube, purge volume, trapping temperature, drying of sorbent tube, and oven temperature were optimized through qualitative and semiquantitative analysis. The DHS−TD–GC−MS fingerprints of soil samples from three sites with spruce, oak, or beech were investigated by pixel-based analysis, a nontargeted data analysis method.
New HPLC Systems and Related Products Introduced in 2017–2018: A Brief Review
April 1st 2018This instalment describes high performance liquid chromatography (HPLC) and related products introduced at Pittcon 2018 in Orlando, Florida, USA, and in the year prior. It highlights new HPLC and mass spectrometry (MS) systems, modules, chromatography data systems, and other HPLC-related software and provides brief descriptions of their significant benefits and innovative features.
From Cradle to Grave: The Chromatographic (Analytical) Method Life Cycle
April 1st 2018The Chromatographic Society and Joint Pharmaceutical Analysis Group have announced a one‑day meeting titled From Cradle to Grave: The Chromatographic (Analytical) Method Life Cycle. The meeting will be held at Burlington House, London, UK, on Thursday 10 May 2018.