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- W2383556522 abstract "In this study,the optimum conditions by hydride generation-atomic fluorescence spectrometry for the determination of arsenic content in sewage is reported.The investigation was performed with these sewage including leachate of calcium slag for solidifying arsenic,wet neutralizing solution of high-arsenic dust,sewage of production for benzyl arsenic acid and ammonium paratungstater.Experiment indicated that after the waste water was treated with chemical method,the ions tolerance amount(mg/50 mL) of 23 ions including Fe3+,Ca2+,Na+,Cu2+,F-,S2-,Bi3+,Sn4+,Sb5+ was between 0.5 and 250 when the As(Ⅲ) was reduced to As(Ⅲ) by sulfur urea-ascorbic acid in the medium of dilute hydrochloric acid.The concentration of hydrochloric acid was 5 %(V/V) and the sample was mixed with 15 g/L potassium borohydride alkaline solution to produce arsenic hydride.Under the selected condition,arsenic had an excellent linear relationship when its content was 2-100 μg/L.The detection limit(3 σ/K) was 0.001 4 μg/L.The method was used for the actual waste water analysis with RSD(n=9-11) of 1.6 %-5.9 % and recovery of 93 %-118 %.The determination results of solidification sewage were consistent with those obtained by arsenic antimony molybdenum blue photometric method." @default.
- W2383556522 created "2016-06-24" @default.
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- W2383556522 date "2013-01-01" @default.
- W2383556522 modified "2023-09-28" @default.
- W2383556522 title "Determination of arsenic in treated sewage by hydride generation-atomic fluorescence spectrometry" @default.
- W2383556522 hasPublicationYear "2013" @default.
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