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reagent |
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reagent a substance for use in a chemical reaction, esp for use in chemical synthesis and analysis reagent [rē′ā·jənt] (analytical chemistry) A substance, chemical, or solution used in the laboratory to detect, measure, or otherwise examine other substances, chemicals, or solutions; grades include ACS (American Chemical Society standards), reagent (for analytical reagents), CP (chemically pure), USP (U.S. Pharmacopeia standards), NF (National Formulary standards), and purified, technical (for industrial use). (chemistry) The compound that supplies the molecule, ion, or free radical which is arbitrarily considered as the attacking species in a chemical reaction. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The standard PSA test requires multiple steps, each with a different chemical reagent, Majumdar says. All manufacturing capabilities will be moved to Polysciences' Warrington facility where the synthesis of ultra pure chemical reagents such as tris, tris hydrochloride, guanidine, guanidine isothiocyanate, urea and ammonium sulfate will continue. As a result of the partial phase-out of Section 45K for calendar year 2006, chemical reagent sales decreased 72% in the September 2006 quarter to $13. |
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