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| Determination of Fluorine, Chlorine and Sulfate Elements in Sulphur by Graphite Furnace Alkali Soluble-Ion Chromatography |
| Received:June 13, 2019 Revised:October 12, 2019 |
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| DOI：doi:10.3969/j.issn.2095-1035.2020.03.015 |
| KeyWord:Ion chromatography; sulfur; Fluorine, chlorine, sulfate radical, element |
| Author | Institution |
| ZHANG Ran |
阿拉山口出入境检验检疫局 |
| GAO Heng |
阿拉山口出入境检验检疫局 |
| LYU Xinming |
阿拉山口出入境检验检疫局 |
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| Abstract: |
| A method for simultaneous determination of fluorine, chlorine, and sulfur in sulfur by graphite furnace alkaline soluble digestion-ion chromatography was proposed. The analytical lines of each element were selected, and the curve was drawn using the external standard method. The detection limit of the method was 0.00189 ug/ml -0.02168 ug/ml., the recovery rate of the method was 81 % ~ 113 %, and the relative standard deviation (N = 5) of the measured value was less than 3.4 %. Ion chromatography has fast and convenient, high sensitivity, simultaneous determination of multiple elements in a single solution sample, good selectivity, less interference between elements, matrix that can adapt to different samples, and high accuracy and precision. The method successfully fills the blank of fluorine, chlorine and sulfur in sulfur-free. |
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