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SOP TO-14A/15 <br /> Rev 4 <br /> December 2007 <br /> ' H&P uses Agilent GUMS systems for EPA Method TO-14A/15 analysis. The labs use Agilent GCs coupled <br /> to a Mass Selective Detector(MSD). The concentrator is an Entech Model 7300 concentrator coupled to a <br /> ' 7100 autosampler. The column used is an HP-624 column of 60m X 0.32 X 1.8u film thickness and uses <br /> these columns in all systems. The carrier gas He is UHP purity. The following instrument conditions are <br /> typical: <br /> ' GC <br /> Injector mode not applicable <br /> ' Injector temp. not applicable <br /> Interface temp. 230 degrees C <br /> Column: 60m x 0.32mm x 1.8u HP-624 <br /> ' Flow: 3.0 mL/min He initial for desorb <br /> Programming down to 1.5 mL/min by 4 minutes <br /> Initial temp. 35 degrees C 4 minute <br /> ' Ramp 20 degrees/min <br /> Final temp 230 degrees <br /> ' MS <br /> SCAN mode 41-300 amu, 2.5 scans/sec <br /> Source temp 230 degrees <br /> ' Quad temp 150 degrees <br /> Multiplier +200 relative <br /> ' Detailed descriptions of the analytical method parameters are to be found in the initial demonstration of <br /> proficiency data package, which is kept as part of H&P Lab initial lab certification. <br /> ' The following SOP is written for analysts using the Entech Air concentrator and/or autosampler. The 7100 <br /> concentrator can concentrate from a few mL of sample up to as much as 6 liters of air. As standard practice <br /> H&P will assume a standard sample size as being 50 mL. <br /> ' Air samples may be taken in gas tight syringes, Tedlar bags, Summa canisters or other approved containers. <br /> (see other H&P SOPS for soil vapor and ambient air sampling) <br /> Agilent Chemstation software version G1701DA with Enviroquant software running on Windows <br /> XP/Pentium personal computers are used for data acquisition and instrument control. Chromatograms and <br /> ' quantitation reports are printed out on HP Laserjet printers. <br /> The above-mentioned equipment requires 110 VAC as a power source to operate. <br /> Sources of further information can be found in the Agilent GUMS and the Entech hardware and software <br /> manuals, which are kept with each instrument. Each instrument also comes with Agilent maintenance <br /> information on CD, which can be viewed on the computer. <br /> ' 7.2 Reagents and Standards <br /> ' Page 5 of 24 <br />