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- W2393899993 abstract "The present paper introduced a method in which pretreated samples by OnGuard Ⅱ RP cartridges and 0.22 μm micropore nylon membrane to remove hydrophobic compounds and tiny particles followed by separating and detecting common anions including trace nitrite in superhigh chloride concentration sewage samples by ion chromatography.The method may separate chloride and nitrite beautifully whose ratio are 50000∶1 or even 100000∶1.The separation and determination of anions were obtained by the brand-new high capacity carbonate selectivity IonPac AS23 column produced by dionex corporation recently with manual prepared Na2CO3/NaHCO3 eluent and suppressed conductivity detector.The method detection limits are from 0.2 to 5.8 μg/L by 25 μL-injection;it may calibrate over two or three orders of magnitude in concentration of 8 anions while the range of linear correlation coefficients is from 0.9996 to 0.9999;RSDs are below 5% for all of anions while the recoveries are between 93% and 106%.The above method possesses the advantages of good selectivity,high sensitivity and easy operation.It solved one of the most difficult puzzles in ion chromatography that separate ultrahigh chlorite and trace nitrite in samples which had been proved by analysing actual samples with satisfactory results." @default.
- W2393899993 created "2016-06-24" @default.
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- W2393899993 date "2007-01-01" @default.
- W2393899993 modified "2023-09-23" @default.
- W2393899993 title "Determination of trace nitrite in superhigh chloride matrix by ion chromatography" @default.
- W2393899993 hasPublicationYear "2007" @default.
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