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Using ion chromatography to determine nitrate in hydrochloric acid by removing chloride ion through adding silver oxide

Liu Weiguo

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Abstract

Studied on the influence of chloride ion to nitrate determination when using ion chromatography to analyze low amount of nitrate in the hydrochloric acid solution.By adding the silver oxide,the chloride ion was removed and the pH of hydrochloric acid solution was adjusted to be neutral.Then the sample was injected in to the ion chromatography to determine the concentration of nitrate.The RSD of this method is 0.05%~1.5%(n3),and the average yield is 99.3%.

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What this paper is about

Studied on the influence of chloride ion to nitrate determination when using ion chromatography to analyze low amount of nitrate in the hydrochloric acid solution.By adding the silver oxide,the chloride ion was removed and the pH of hydrochloric acid solution was adjusted to be neutral.Then the sample was injected in to the ion chromatography to determine the concentration of nitrate.The RSD of this method is 0.05%~1.5%(n3),and the average yield is 99.3%.

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Available abstract

Studied on the influence of chloride ion to nitrate determination when using ion chromatography to analyze low amount of nitrate in the hydrochloric acid solution.By adding the silver oxide,the chloride ion was removed and the pH of hydrochloric acid solution was adjusted to be neutral.Then the sample was injected in to the ion chromatography to determine the concentration of nitrate.The RSD of this method is 0.05%~1.5%(n3),and the average yield is 99.3%.

Key concepts: Hydrochloric acid, Chemistry, Silver nitrate, Chloride, Ion chromatography, Nitrate, Inorganic chemistry, Ion

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