July 2012
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Forensics
Analysis of Ethanol in Blood with the Agilent 7820A GC and 7697A Headspace Sampler
Xiaohua Li, Agilent Technologies
The Agilent 7820 GC and 7697A headspace sampler is an economical instrument configuration for measuring ethanol in blood.

FoodTesting
Analysis of Free and Total Glycerol in B100 Biodiesel Methyl Esters Using Agilent Select Biodiesel for Glycerides
John Oostdijk, Agilent Technologies
The American Standard, ASTM D 6584 (1), is the standard test method used to determine the free and total glycerol contents in fatty acid methyl esters (FAMEs), typically intended for pure biodiesel or as a blending component for domestic and diesel fuels.
 
Analysis of Fatty Acids in Infant Formulas Using a JW HP88 Capillary GC Column
Shun Na, Agilent Technologies
This application note describes an efficient and economical RTL-GC–FID method for determination of fatty acids in infant formulas.
 
Analysis of Organophosphorus Pesticides with Agilent 7820 Gas Chromatograph Flame Photometric Detector
Agilent Technologies
The Agilent 7820 series gas chromatograph (GC) equipped with a flame photometric detector (FPD) provides high sensitivity, good linearity, and stability for the analysis of organophosphorus pesticides.
 
Analysis of Natural Oils and Extracts Using the Low Thermal Mass LTM Series II System
Roger L. Firor, Agilent Technologies
The enantiomers of linalool and other important components of natural oils or natural extracts including cypress oil, geranium extract, balm leaves oil, and jasmin oil are separated on a multidimensional system using two separate GC ovens.

Geochemistry
Automating Complex Sample Preparations Using the Agilent 7696A WorkBench
Agilent Technologies
The 7696A Workbench is a standalone instrument specifically designed to automate sample preparation.
 
Detection of Sulfur Compounds in Natural Gas According to ASTM D5504 with Agilent's Sulfur Chemiluminescence Detector
Wenmin Liu, Agilent Technologies
An Agilent dual plasma sulfur chemiluminescence detector (DP SCD) combined with an online dilutor was used for the analysis of sulfur compounds. By using this method, the detection limits of the sulfur compounds achieved the ppb level.
 
Automated Clean-Up of PCB Extracts from Waste Oil Using the Agilent 7696A Sample Prep Workbench
Frank David, Agilent Technologies
A miniaturized dispersive SPE method for the determination of PCBS in waste mineral oils was automated on the Agilent 7696A sample prep workbench system.
 
EN 15779 — Gas Chromatographic Analysis of Polyunsaturated FAME in Biodiesel Made From Algae and Marine Oils
James D. McCurry, Agilent Technologies
A 7890 GC was used for the analysis of four polyunsaturated fatty acid methyl esters in algal biodiesel and explained using method EN 15779.

Geochemistry
Mine Gas Analysis Using the 490 Micro GC
Darren Brady, Agilent Technologies
The use of the 490 Micro GC for the analyses of mine gases, like carbon monoxide at low levels of detection is essential for the safety of mine workers.