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RHODIUM Method 265.2 (Atomic Absorption, furnace technique) Optimum ConcentratIon Range: 20-400 ug/l Dete~tlOnLimit: 5 ug/l PreparatIOn of Standard SolutIon 1 ~ 2 3 Sample 1 Sample 1 Stocksolution Prepareasdescnbedunder"dlrectasplratlOnmethod" Prepare dllutlOns of the stock solutlOn to be used as cahbratlOn standards at the tlme of analysls ThesesolutlOnsarealsotobeusedfor"standardaddltlOns" The cahbratlOn standard should be dlluted to contam 05% (v/v) HN03 Preservation For sample handhng and preservatlOn, see part 4 1 of the Atomlc AbsorptlOn Methods sectlOn ofthls manual PreparatIon Prepare as descnbed under "duect asplratlOn method" Sample solutlOns for analysls should contam 05% (v/v) HN03 Instrument Parameters (General) 1 DrymgTlme and Temp 30 sec-125°C 2 AshmgTlmeand Temp 30sec-1200°C 3 AtomlzmgTlmeandTemp 10sec-2800°C 4 Purge Gas Atmosphere Argon 5 Wavelength 3435 nm 6 Other operatmg parameters should be set as speclfied by the partlcular mstrument manufacturer Analysls Procedure 1 For the analysls procedure and the calculatlOn, see "Furnace Procedure" part 9 3 of the Atomlc AbsorptlOn Methods sectlOn ofthls manual *Not Asslgned Approved for NPDES Issued 1978 2652-1 , STORET NO. Total*PDF Image | Methods for Chemical Analysis of Water and Wastes
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