电感耦合等离子体质谱(ICP-MS)法测定地球化学样品中的碘  

Determination of Iodine in Geochemical Samples by Inductively Coupled Plasma-mass Spectrometry(ICP-MS)

作　　者：万兵[1] 孙立欣 贾雨薇 夏照明[2] 任志海[2] WAN Bing;SUN Lixin;JIA Yuwei;XIA Zhaoming;REN Zhihai(The Sixth Geological Survey Laboratory in J ilin Province ,Yanji ,Jilin 133400, China;The Fifth Geological Survey Laboratory in Jilin Province ,Changchun, Jilin 130500 ,China)

机构地区：[1]吉林省第六地质调查所实验室,吉林延吉133400 [2]吉林省第五地质调查所实验室,长春130500

出　　处：《中国无机分析化学》2017年第4期57-59,共3页Chinese Journal of Inorganic Analytical Chemistry

摘　　要：建立了以艾斯卡试剂分解样品,以阳离子交换树脂分离基体中钠和锌,电感耦合等离子体质谱(ICP-MS)法测定地球化学样品中碘的方法。方法经国家一级标准土壤参考样品验证,方法的检出限为0.006 9μg/g、相对标准偏差为3.3%~7.6%和相对误差为-2.3%~4.1%。方法能够满足地球化学样品的分析测定要求。且方法操作简便,测定成本低,分析周期短,适合于批量样品的分析测定。A method based on Eschka reagent decomposition for determination of iodine content in geochemical samples by inductively coupled plasma-mass spectrometry （ICP-MS） was developed. The sodium and zinc matrix were removed using cation exchange resin. For national standard soil reference samples,a detection limit of 0. 006 9 μg/g, a relative standard deviation （RSD） of 3.3%-7.6% and a relative error of -2.3%-4.1% were determined showing that thetechnique can meet the analytical requirements of the geochemical samples. This method is simple, low cost, short analysis period and is suitable for batch sample analysis.

关 键 词：艾斯卡试剂 阳离子交换树脂 电感耦合等离子体质谱法 

分 类 号：O657.63[理学—分析化学] TH843[理学—化学]