作者：李艳华, 高骏, 鲍俊, 王全林

作者单位：宁波市产品质量监督检验研究院, 浙江 宁波 315041

关键词：石棉; 偏光显微镜; X射线衍射仪; 密封垫片

摘要：

针对国内没有密封垫片中石棉检测方法的现状,开展了关于样品前处理、定性、定量的研究.结果表明：密封垫片前处理的最佳灰化温度450 ℃,灰化时间为4 h;偏光显微镜(PLM) 和X射线衍射仪(XRD) 联合使用对样品定性分析,快速准确;XRD法定量的标准曲线线性良好,仪器检出限为0.4 mg,回收率在75.45%~102.89%之间,标准偏差为8.85%,满足日常检测需要.

Study on testing asbestos in gasket

LI Yan-hua, GAO Jun, BAO Jun, WANG Quan-lin

Ningbo Academy of Product Quality Supervision and Inspection, Ningbo 315041, China

Abstract: In view of the domestic situation of no asbestos examination method for gasket, the authors studied the pretreatment condition, qualitative and quantitative method of the sample. The experimental results showed the optimum pretreatment condition, i.e., ashing at temperature 450 ℃ for 4 hours. The sample should be qualitatively analyzed with polarizing microscope (PLM) and the X-ray diffractometer (XRD) union method, which was handy, rapid and accurate. And the sample should be quantitatively analyzed by XRD, which would give out much better linearity for the quantitative standard curve. Its instrument detection limit was 0.4 mg, the recovery was 75.45%-102.89%, and the standard deviation was 8.85%. These parameters indicated the method can satisfy the requirements of daily testing work.

Keywords: asbestos; PLM; XRD; gasket

2011, 37(5): 47-49  收稿日期: 2010-12-9;收到修改稿日期: 2011-2-28

基金项目: 浙江省质检科技计划项目(20080229)

作者简介: 李艳华(1980-), 女, 硕士, 主要从事进出口电子电器产品检验工作.

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