It’s been a while since I have written about environmental pollution and the recent oil spill in Mumbai, India, (link to story), which has turned out to be worse than thought earlier, reminded me of this recent gas chromatography application developed by our chemists in our Milan, Italy, office.
Application Note 10342, Automated Determination of Gasoline Range Organics (GRO) in Water Via Valve-and-Loop Headspace GC, (downloadable PDF) describes a reliable and automated method for Gasoline Range Organics (GRO) in water. The method similar to the U.S. EPA Method 8015D,NONHALOGENATED ORGANICS USING GC/FID, (downloadable PDF).
The system setup consisted of our high-throughput headspace autosampler (Thermo Scientific TriPlus 300 Headspace autosampler), one of our latest gas chromatography systems (Thermo Scientific TRACE 1310 GC), one of our general-purpose gas chromatography columns (Thermo Scientific TRACE TR-1 column), and the latest version of our Chromatography Data System (CDS) software (Thermo Scientific Dionex Chromeleon 7.2 CDS).
In addition, the gas chromatography system was equipped with one of our liquid injectors (Thermo Scientific Instant Connect Split/Splitless Injector) with a dedicated headspace liner and a detector module (Thermo Scientific Instant Connect Flame Ionization Detector).
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The following gasoline compounds were detected: MTBE, benzene, toluene, ethylbenzene, m-Xylene/p-Xylene, o-Xylene, 1,3,5-Trimethylbenzene, 1,2,4-Trimethylbenzene, and naphthalene
Do check our blog for more chromatography applications for water analysis.
And, as always, if you have any questions on the system, software, column or type of analysis, do enter them in the Comments box below; our experts look forward to hearing from you.