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'f CQPPER Method 220.1 (Atomic Absorption, direct aspiration) ~ Optimum Concentration Range: SensitivIty: 0 1mg/1 - Detection LimIt: 0 02 mg/1 ., ,0 2-5 mg/1 usmg a wavelength oQ24 7 nm Preparation of Standard SolutIOn 1 Stock SolutIOn Carefully weIgh 190 g of elec!rolyte copper (analytIcal reagent grade) DIssolve m 5 ml redIstIlled HN03 and make up to 1 lIter wIth deIOnIzed dIstIlled water Fmal concentratIOn IS 1 mg Cu per m1 (1000 mg/1) 2 Prepare dIlutIOns of the stock solutIOn to be used as calIbratIOn standards at the time of analysIs ThecalIbratIOnstandardsshouldbepreparedusmgthesametypeofaCIdandat the same concentratIOn as wIll result tn the sample to be analyzed eIther dIrectly or after processmg Sample PreservatIOn 1 For sample handlIng and preservatIOn, see part 4 I of the AtomIc AbsorptIOn Methods sectIOn of thIS manual Sample Preparation 1 The procedures for preparatIOn of the sample as gIven m parts 4 1 1 thru 4 1 4 of the AtomIc AbsorptIOn Methods sectIOn ofthIS manual have been found to be satisfactory Instrumental Parameters (General) 1 2 3 4 5 Copper hollow cathode lamp Wavelength 3247nm Fuel Acetylene OXIdant AIr Typeofflame OXIdIzmg 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 1971 EdItOrial reVISIOn 1974 and 1978 220 1-1 .". STORET NO. Total 01042 Dissolved 01040 , Suspended 01041PDF Image | Methods for Chemical Analysis of Water and Wastes
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