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I 2 Sample 1 Sample 1 Stock solutlon DIssolve 196558 g beryllmm sulfate, BeSO.4H20, m deIOnized dIstllled water contammg 2 ml conc nItnc aCid and dIlute to I lIter I mi =I mg Be (1000 mg/I) Prepare dllutIOns of the stock solutIon to be used as cahbratlon standards at the tIme of analysIs ThecahbratIOnstandardsshouldbepreparedusmgthesametypeofaCIdandat the same concentratIOn as WIll result m the sample to be analyzed eIther dIrectly or after processmg 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 saJ;Ilple as given m parts 4 1 1 through 4 1 4 of the AtomIC Absorption Methods section of thIS manual have been found to be satIsfactory BERYLLIUM Methods 210.1 (Atomic Absorption, direct aspiration) OptImum ConcentratIon Range: SensitIvity: 0025 mg/l DetectIon LImIt: 0 005 mg/l PreparatIOn of Standard SolutIon STORET NO. Total 01012 Dissolved 01010 Suspended 01011 005-2 mg/l usmg a wavelength of234 9 nm Instrumental Parameters (General) 1 Berylhum hollow cathode lamp 2 Wavelength 234 9 nm 3 Fuel Acetylene 4 OXIdant NItrous oXIde 5 Type offlame Fuel rIch AnalysIs Procedure I 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 210 1-1PDF Image | Methods for Chemical Analysis of Water and Wastes
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