电感耦合等离子体质谱法测定涉水产品浸泡液中15种元素  

Determination of 15 elements in drinking water–related products soak by inductively coupled plasma mass spectrometry

作　　者：李延升[1] 祁珍祯 朱冰雅 韩晓鸥[1] LI Yansheng;QI Zhenzhen;ZHU Bingya;HAN Xiaoou(Liaoning Provincial Center for Disease Control and Prevention,Liaoning Provincial Key Laboratory of Air Haze and Human Health Monitoring,Shenyang 110005,China)

机构地区：[1]辽宁省疾病预防控制中心,辽宁省空气雾霾与人群健康监测重点实验室,沈阳110005

出　　处：《化学分析计量》2022年第9期36-40,共5页Chemical Analysis And Meterage

摘　　要：建立电感耦合等离子体质谱法测定涉水产品浸泡液中15种元素含量的方法。样品经浸泡水在(25±5) ℃避光条件下浸泡(24±1)h,采用碰撞模式消除浸泡液中高浓度氯、钠和钙引起的质谱干扰,以电感耦合等离子体质谱法测定浸泡液中砷、镉、铬、铝、铅、汞、铁、锰、铜、锌、钡、镍、锑、银和锡的含量。汞元素的质量浓度在0~20 μg/L范围内,其它14种元素的质量浓度在0~200 μg/L范围内的线性关系良好,线性相关系数均大于0.999,方法检出限为0.003~0.8 μg/L。低、中、高3个浓度水平的加标回收率为91.4%~117.3%,测定结果的相对标准偏差为0.32%~7.4%(n=6)。该方法适用于涉水产品浸泡液中多种元素的测定,可为相关机构开展监督和检测工作提供技术支持。A method was established for determination of 15 elements in drinking water–related products soak by inductively coupled plasma mass spectrometry.Samples were soaked in soaking water for (24±1) h at (25±5) ℃indark conditions.The collision mode was used to eliminate the mass spectrum interference caused by high concentrations of chlorine,sodium and calcium in the soaking solution.The contents of As,Cd,Cr,Al,Pb,Hg,Fe,Mn,Cu,Zn,Ba,Ni,Sb,Ag and Sn in soaking solution were determined by inductively coupled plasma mass spectrometry.The good linearity was obtained,the correlation coefficients of the method were all more than 0.999 when the concentration of Hg within 0–20 μg/L and the other 14 elements in the range of 0–200 μg/L,the detection limits were between 0.003 μg/L and 0.8 μg/L.The standard recovery rates were in the range of 91.4%–117.3% at low,medium and high spiked concentrations,the relative standard deviations were 0.32%–7.4%(n=6).This method is applicable to the determination of various elementsin the soaking solution of aquatic products,and can provide technical support for relevant institutions to carry out supervision and detection.

关 键 词：电感耦合等离子体质谱法 涉水产品 元素 

分 类 号：O657.3[理学—分析化学]