高效液相色谱法测定烟用接装纸中的六价铬

Determination of Chromium (Ⅵ) in Cigarette Tipping Paper by High Performance Liquid Chromatography

中文关键词:  高效液相色谱法  烟用接装纸  六价铬

英文关键词:HPLC  tipping paper  chromium(Ⅵ)

中文摘要:

      建立了一种测定烟用接装纸中六价铬的高效液相色谱法.方法以磷酸盐缓冲液萃取试样中的六价铬，加入二苯卡巴肼与六价铬进行显色配合反应，生成紫红色配合物，过滤后滤液经液相色谱柱分离，二极管阵列检测器分析测定.方法检出限为0.020 mg/kg，定量限为0.067 mg/kg，回收率为84.0%~99.8%，方法准确度和精密度均满足烟用接装纸的检测要求.

英文摘要:

      A method for the determination of chromium VI in the cigarette tipping paper by high performance liquid chromatography (HPLC) was developed. Cr (VI) was extracted using a phosphate buffer. After filteration, chromium VI reacted with diphenylcarbazide to form a purple complex, and the chromium VI content was detected with a diode array detector. The limit of detection (LOD) of Cr(VI) was 0.020 mg/kg, the quantitation limit was 0.067 mg/kg. The recovery was ranged from 84.0% to 99.8%. Results indicated that the accurancy and prcision met the requirements of the detemination of Cr(VI) content in cigarette tipping paper.