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- W2369207202 abstract "A method for determination of fluoride content in zinc concentrates was established.By alkali fusion together with semi-melting method,the influence of a large number of sulfur on sample pretreatment was removed.The floride that to be analyzed was separated from many other heavy metal ions in ores using water vapor distillation.After alkali fusion and water vapor distillation process,the interference in ion chromatographic determination was eliminated to the greatest extent and the detection limit was decreased.Sodium carbonate(2.5mmol/L)and sodium bicarbonate(3.5mmol/L)mixture solution was used as eluent and SH-AC-1(200mm×4.6mm ID)was used as anion analytical column for separation.A suppressed conductivity detector was for detection.As a result,the linear ranges of the method for fluoride in the zinc concentrate were 0.004% ~0.5% and the correlation coefficient was0.999 6.The standard addition recoveries were 97%~102%and the relative standard deviation was less than 4.0%.The sample detection limit was 0.0004%.The method effectively expands the contents of fluoride in zinc concentrate that can be determined." @default.
- W2369207202 created "2016-06-24" @default.
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- W2369207202 date "2014-01-01" @default.
- W2369207202 modified "2023-09-23" @default.
- W2369207202 title "Determination of Fluoride in Zinc Concentrate by Alkali Melt-Water Vapor Distillation-Ion Chromatography" @default.
- W2369207202 hasPublicationYear "2014" @default.
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