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The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
Ultra-trace Element Analysis of Carbonate Rocks by APDC-MIBK Extraction and Atomic Absorption Spectrophotometry
Brian E. St. John
ABSTRACT
Microanalysis of carbonate rocks using APDC-MIBK extraction and atomic absorption can be accomplished through the use of a sodium hydroxide ammonium chloride buffer. The sensitivity of the method is in the part-per-billion range and the potential extension of the method to allow the simultaneous extraction of up to 20 elements is indicated. Analyses of 3 samples of Millepora sp. from the Coral Sea for Co, Cd, Cu, Ni, Zn, Fe, and Pb are presented. The APDC-MIBK extraction system can be used for ultra-trace element analysis of freshwater, sea water, sediment interstitial water, briny groundwater, granite, and carbonate sediment and rock.
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