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  • Title: [Determination of anions, cations and organic acids in the oil field water by ion chromatography].
    Author: Shi Y, Liu J, Cai Y, Mou S, Wen M.
    Journal: Se Pu; 2004 Nov; 22(6):646-9. PubMed ID: 15807122.
    Abstract:
    A method for the determination of anions, cations and organic acids in the oil field water with high chloride and sodium ions was developed by ion chromatography (IC) with a conductivity detector. The separation of the cations was achieved on an IonPac CS12A column with H2SO4 as the eluent. The separation of the anions and organic acids was achieved on an IonPac AS11-HC column with KOH as the eluent, and the detection was performed by a conductivity detection mode. The calibration graphs of peak area for all the analytes were linear over a wide range. The recoveries of the added standards were 90% - 110% . The relative standard derivations (RSDs) of the peak area of analytes were less than 8.0%. The detection limits for analytes ranged from 1.55 microg/L to 31.8 microg/L.
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