【摘要】 本文介绍了国产管激发能量色散Ｘ射线荧光分析仪同时测定人发中Ｃａ、Ｆｅ、Ｃｕ和Ｚｎ的分析方法。该方法采用在人发样品中加入内标元素Ｙ，用化学法溶解人发，制成分析试样，用Ｘ射线荧光分析仪测定试样中的上述元素。此方法对这４种元素的检测限依次为７×ｌ０￣（－６）、ｌ×１０￣（－６）、４×１０￣（－６）和３×１０￣（－６），其变异系数分别为６％、ｌ％、２％和２％。更多还原

【Abstract】 Here we introduce an analysing method that can determine simultaneously Ca , Fe , Cu andZn in hair by using energy-dispersive X ray fluorescence analyzer of tube-excite type made inChina. We have used added element Y as internal standard in hair sample.The hair is resolvedby chemical reagent to make test sample , then we use the energy-dispersive X ray fluorescenceanalyzer to determine Ca , Fe , Cu and Zn contents in hair sample.The lower limits of detectionare 7 × 10￣(-6),1×10￣(-6),4×10￣(-6), 3× 10￣(-6), respectively. Correlative coefficients of variationare 6%,1%,2%,2%。(更多还原