尿液样品用硝酸酸化至硝酸的体积分数为1%，离心后，上清液用4%（体积分数）硝酸溶液稀释10倍。采用动态反应池-电感耦合等离子体质谱法同时测定其中铅、镉、砷、硒、锰、铜、锌、锑、铍、钒、铁、镍、钼、铬、铊、钴、锡等17种元素的含量。以⁴⁵Sc （测定锰、铜、铍、钒、铁、镍、铬、钴）、⁷²Ge （测定砷、硒、锌）、¹¹⁵In （测定镉、锑、钼、锡）、²⁰⁹Bi （测定铅、铊）为内标物。铁的线性范围在5.00 mg·L^-1以内，其余元素的线性范围均在50.0 μg·L^-1以内，检出限（3s）为0.000 5~0.496 0 μg·L^-1。方法用于尿液样品的分析，加标回收率为85.6%~110%，测定值的相对标准偏差（n=7）为0.68%~4.8%。

The urine sample was acidized with HNO₃ to 1% of volume fraction of HNO₃. After centrifugation, the supernatant was diluted 10 times with 4%(φ) HNO₃ solution. ICP-MS was applied to the simultaneous determination of 17 elements, i.e. Pb, Cd, As, Se, Mn, Cu, Zn, Sb, Be, V, Fe, Ni, Mo, Cr, Tl, Co and Sn in the solution with dynamic reaction cell. ⁴⁵Sc (for determination of Mn、Cu、Be、V、Fe、Ni、Cr、Co), ⁷²Ge (for determination of As、Se、Zn), ¹¹⁵In (for determination of Cd、Sb、Mo、Sn) and ²⁰⁹Bi (for determination of Pb、Tl) were used as internal standards. Linearity range of Fe found was in the range within 5.00 mg·L^-1and linearity ranges of the others were in the range within 50.0 μg·L^-1, with detection limits (3s) in the range of 0.000 5-0.496 0 μg·L^-1. The proposed method was applied to the analysis of urine sample, giving values of recovery and RSD's (n=7) in the ranges of 85.6%-110% and 0.68%-4.8% respectively.