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| 柱前衍生-HPLC法测定生活饮用水化学处理剂中六价铬 |
| Determination of Chromium（Ⅵ） in Chemical Treatment Agent for Drinking Water by Pre column Derivatization HPLC |
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| DOI： |
| 中文关键词: 六价铬 化学处理剂 柱前衍生 高效液相色谱法 水质 |
| 英文关键词: Hexavalent chromium Chemical treatment agent Pre column derivatization High performance liquid chromatography Water quality |
| 基金项目:江苏省青年医学重点人才基金资助项目（QNRC2016543） |
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| 中文摘要: |
| 在酸性条件下，生活饮用水化学处理剂中六价铬与二苯碳酰二肼进行衍生反应，以磷酸二氢钾缓冲溶液和乙腈-丙酮（体积比为1〖DK（〗∶〖DK）〗1）混合溶液为流动相，衍生物经Atlantis T3 C18分析柱分离，在540 nm波长下检测。六价铬在0001 mg/L~0500 mg/L范围内线性良好，方法检出限为500 mg/kg，标准样品6次测定结果的RSD为09%～35%，实际样品加标回收率为760%～985%。 |
| 英文摘要: |
| In acidic condition，the derivative reaction of hexavalent chromium in chemical treatment agent for drinking water with diphenylcarbazide occurred and hexavalent chromium was determined at 540 nm wavelength with potassium dihydrogen phosphate buffer solution and acetonitrile acetone(volume ratio 1〖DK（〗∶〖DK）〗1) mixed solution as the mobile phase， Atlantis 〖JP2〗T3 C18 column as the separation column. The linear range of hexavalent chromium was from 0.001 mg/L to 0.500 mg/L. The method detection limit was 5.00 mg/kg. The RSDs of 6 measurements of standard samples were 0.9%~3.5%. The recoveries of actual samples were 76.0%~98.5%. |
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