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- W2352751146 abstract "The optimal separation and enrichment conditions of Cr(Ⅵ) by anion exchange resin were studied using spectrophotometry.The column acidity and eluting agent were optimized: the column medium was H2SO4 at pH 4.0,and the eluting agent was 20 g/L NaOH-90 g/L NaCl.The maximum allowable limits of main interference elements(iron,vanadium and molybdenum) were investigated.The enrichment factor of micro exchange column to Cr(Ⅵ) was 33.3.Beer's law was obeyed for Cr(Ⅵ) in the range of 0-0.08 μg/mL.The correlation coefficient was 0.999 8,and the detection limit was 0.002 3 μg/mL.The proposed method was applied to the determination of Cr(Ⅵ) in industrial wastewater and standard solution.The relative standard deviations(RSD) were 6.1 % and 2.1 %,respectively.The determination results were consistent with those obtained by atomic absorption spectrometry." @default.
- W2352751146 created "2016-06-24" @default.
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- W2352751146 date "2010-01-01" @default.
- W2352751146 modified "2023-09-23" @default.
- W2352751146 title "Study on the adsorption behavior of ion exchange chromatographic microcolumn to chromium(VI) and its analytical application" @default.
- W2352751146 hasPublicationYear "2010" @default.
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