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TITANIUM Method 283.2 (Atomic Absorption, furnace technique) OptImumConcentrationRange: DetectIOn LImIt: 10 ug/l 50-SOD ug/l PreparatIon of Standard Solution 1 Stock solution Prepare as descnbed under "direct aspiratIOn method" 2 Prepare dilutIOns of the stock solutIOn to be used as cahbratlOn standards at the time of analySIS 3 The cahbratlOn standards should be prepared usmg the same type ofaCid and at the same concentratIOn as Will result m the sample to be analyzed either directly or after processmg Sample PreservatIon 1 For sample handlIng and preservatIOn, see part 4 1 of the AtomiC AbsorptIOn Methods sectIOn ofthis manual Sample PreparatIon 1 Prepare as descnbed under "direct aspiratIOn method" Sample solutIOns for analySIS shouldcontamO 5% (v/v) HN03 Instrument Parameters (General) 1 Drymg Time and Temp 30 sec-125°C 2 AshmgTlmeand Temp 30sec-I400°C 3 Atomlzmg Time and Temp 15 sec-2800°C 4 Purge Gas Atmosphere Argon 5 Wavelength 3654 nm 6 Other operatmg parameters should be set as specified by the particular mstrument manufacturer AnalYSIS Procedure 1 For the analySIS procedure and the calculatIOn, see "Furnace Procedure" part 9 3 of the AtomiC AbsorptIOn Methods sectIOn of this manual Approved for NPDES Issued 1978 2832-1 STORET NO. Total 01152 Dissolved 01150 Suspended 01151PDF Image | Methods for Chemical Analysis of Water and Wastes
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