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1'1CTHOO SPCCIPIC RHRLYTICHL QUALITY ASSURRHCC**QUALITY COHTROI <br /> a Sources of Reagents, Chemicals. and Standards <br /> CHEMUCST obtains the reagente, chemicals, and stanoards used for <br /> extraction, calibration, spiking, and reference from a varlety of <br /> commercial and gouernment sources* in both neat and solution form. <br /> Indiuldual la4orastory and r+ethod SOP'S Indicate the source of these <br /> materials - Lot numbers and other pertinent information about the <br /> talc bre documented in the appropriate laboratory log or <br /> carious nateL <br /> workbooks . These sources include, but are not limited to, the <br /> follouing list . <br /> w o Rldrich <br /> o J .T . Baker <br /> o Banco <br /> w o Cambridge isotope Labs <br /> o Chen Service <br /> a EM Science <br /> o Fisher <br /> o Kodak <br /> o Mallinkradt <br /> r o MSD Isotopes <br /> o StohlerlKOR <br /> o Supelco <br /> o UUR Scientific <br /> P <br /> 5 <br /> a <br />