全自动消解-电感耦合等离子体质谱法测定土壤中16种元素  

Determination of sixteen elements in soil by inductively coupled plasma mass spectrometry with full-automatic digestion

作　　者：张更宇 洪涛 薛健[3] 周敬[3] 王双龙[3] 冯铁瑛[3] Zhang Gengyu;Hong Tao;Xue Jian;Zhou Jing;Wang Shuanglong;Feng Tieying(Jilin Environmental Motoring Station,Jilin Jilin 132012,China;Beijing Tanmo Quality Testing Technology Co.Ltd.,Beijing 100176,China;Jilin Academy of Agricultural Sciences,Jilin Jilin 132012,China)

机构地区：[1]吉林市环境监测站,吉林吉林132012 [2]北京坛墨质检科技有限公司,北京100176 [3]吉林市农业科学院,吉林吉林132012

出　　处：《化工环保》2018年第2期242-247,共6页Environmental Protection of Chemical Industry

摘　　要：采用HNO_3-HF-HClO_4消解体系,建立了全自动消解-电感耦合等离子体质谱仪测定土壤中^(75)As、~9Be、^(51)V、^(55)Mn、^(59)Co、^(60)Ni、^(63)Cu、^(66)Zn、^(98)Mo、^(111)Cd、^(138)Ba、^(205)Tl、^(208)Pb、^(107)Ag、^(52)Cr、^(121)Sb等16种元素的新方法。通过碰撞池技术和编辑干扰元素校正方程有效校正了质谱干扰,并用内标校正了土壤基体干扰。用土壤标准物质GSS-13验证该方法,其校准曲线相关系数大于0.999 9,方法检出限在0.005~0.5μg/g之间,RSD为0.22%~2.35%,加标回收率为92%~114%。采用该方法测定实际土壤样品,加标回收率为93%~123%。With HNO3-HF-HClO4 digestion system,a new method of full-automatic digestion-inductively coupled plasma mass spectrometry(ICP-MS)was established for determination of 16 elements in soil,such as 75As,9Be,51V,55Mn,59Co,60Ni,63Cu,66Zn,98Mo,111Cd,138Ba,205Tl,208Pb,107Ag,52Cr,121Sb,and so on.The MS interference was corrected by collision cell technology(CCT)and editing element correction equation,and the interference of matrix elements in soil was corrected with internal standard.The new method was confi rmed using the national standard soil samples of GSS-13 with more than 0.999 9 of correlation coeffi cient of the calibration curve,0.005-0.5μg/g of detection limit,0.22%-2.35%of RSD and 92%-114%of recovery rate.When actual soil sample was determined by this method,the recovery rate was 93%-123%.

关 键 词：全自动消解 电感耦合等离子体质谱 碰撞模式 质谱干扰校正 土壤监测 

分 类 号：X833[环境科学与工程—环境工程]