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Optimum Concentration Range: Sensitivity: 05 mg!l Detection Limit: 0 2 mg!l Preparation ofStandard Solution STORET NO. Total 01097 Dissolved 01095 Suspended 01096 1-40 mg!l USIng a wavelength of217 6 nm 1 2 Sample 1 Sample 1 Stock SolutIOn Carefully weIgh 2 7426 g of antImony potassmm tartrate K(SbO)C4H40s-Y2H20 (analyticalreagentgrade)anddIssolveIndeIOnIZeddIstilled water DIlute to I lIter wIth deIOnIzed dIstilled water I ml =I mg Sb (1000 mglII) Prepare ddutIOns of the stock solutIOn to be used as calIbratIOn standards at the tIme of analysIs ThecahbratIOnstandardsshouldbepreparedUSIngthesametypeofaCIdandat the same concentratIOn as wIll result In the sample to be analyzed eIther dIrectly or after processIng Preservation For sample handhng and preservatIOn, see part 4 1 of the AtomIC Absorption Methods section ofthIs manual Preparation The procedures for preparatIOn of the sample as gIven In parts 4 1 1 through 4 1 4 of the AtomIC Absorption Methods section ofthIS manual have been found to be satIsfactory ANTIMONY Method 204.1 (Atomic absorption, direct aspiration) Instrumental Parameters (General) 1 AntImony hollow cathode lamp 2 Wavelength 217 6 nm 3 Fuel Acetylene 4 OXIdant AIr 5 Type offlame Fuellean Analysis Procedure 1 For analysIs procedure and calculatIOn, see "DIrect AspIratIOn", part 9 1 of the AtomIC AbsorptIOn Methods sectIOn of thIs manual Approved for NPDES Issued 1974 Editonal reVISIon 1978 2041-1PDF Image | Methods for Chemical Analysis of Water and Wastes
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