TITLE: ANALYTE: INSTRUMENTATION: IC - CAS Lab

METHOD #: for Approval for NPDES (August, 1991) TITLE: determination Of dissolved hexavalent chromium In DrinkingWater, Groundwater And Industrial Wastewater Effluents ByIon ChromatographyANALYTE:CAS # chromium 7440-47-3, and method provides procedures for the determinatbn of dissolved hexavalentchromium in drinking water, groundwater and industrial wastewater Method Detection Limits (MDL, defined in Sectin 3) for the above matricesare listed in Table 1. The MDL obtained by an individual laboratory for aspecific matrix may differ from those listed depending on the nature of thesample and the instrumentation containing high levels of anionic species such as suHate and chloridemay cause column overload. Samples containing high levels of organics orsulfides cause rapid reduction of soluble Cr(VI) toCr(III). Samples must bestored at 4 C and analyzed within twenty-four hours of method should be used by analysts experienced in the use of ionchromatography and the interpretatbn of ion of aqueous sample is filtered through a um filter and the filtrate isadjusted to a pH of 9 to with a buffer solution.

METHOD #: 218.6 Recommended for Approval for NPDES (August, 1991) TITLE: Determination Of Dissolved Hexavalent Chromium In Drinking Water, Groundwater And Industrial Wastewater Effluents By Ion Chromatography ANALYTE: CAS # Chromium 7440-47-3, Cr INSTRUMENTATION: IC 1.0 Scope and Application

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  Title, Instrumentation, Determination, Analyte, Chromium, Hexavalent, Dissolved, Determination of dissolved hexavalent chromium

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