全自动消解-电感耦合等离子体质谱法测定环境土壤中13种元素
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(1.吉林省农业环境保护与农村能源管理总站,吉林 长春 130012;2.长春市农产品质量安全与检测中心 ,吉林 长春 130012;3.吉林省农业技术推广总站 ,吉林 长春 130012)

作者简介:

杨立国(1972-),男,吉林长春人,大学本科,正高级农艺师。研究方向为农艺生态领域检测。E-mail:544177116@qq.com。

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Determination of thirteen elements in soil by inductively coupled plasma mass spectrometry with automatic digestion instrument
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(1.Jilin Province Master Station of Agro-environmental Protection and Rural Energy Source Management,Changchun Jilin 130012;2.Changchun Agricultural Product Quality Safety and Testing Center,Changchun Jilin 130021;3.Jilin Agricultural Technology Extension GeneralStation,Changchun Jilin 130021)

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    摘要:

    建立了全自动消解-电感耦合等离子质谱法(ICP-MS)测定环境土壤中 13种常见元素的新方法。确定的最佳实验条件如下:采用标准模式测定铅、镍;采用碰撞模式,以氦气流速为 3.0 mL/min测定铍、锰、钴、铜、锌、钼、镉、钡、铊、铬、锑。通过内标校正土壤基体干扰,编辑干扰元素校正方程校正质谱干扰,各个元素校准曲线的线性相关系数 >0.9999,方法检出限在 0.007~ 0.5 μg/g之间,该方法用土壤标准物质 GSS-13进行验证,1.05%~ 4.91%之间,13种元素的加标回收率 89%~ 127%,各元素的测定值与标准值吻合。以吉林市农用地土壤为实际测定对象,加标回收率 88%~ 134%,利用电感耦合等离子体发射光谱法(ICP-AES)进行仪器比对,结果基本一致。

    Abstract:

    A new method to determine thirteen elements contents of the soil wass established by the inductively coupledplasma mass spectrometry in thisstudy.The optimal experimental conditions are asfollows:lead and nickel were determinedby the standard model.Beryllium,manganese,cobalt,copper,zinc,molybdenum,cadmium,barium,thallium,chromium,antimony were determined by the KEDmodel,the helium flow rate was set at 3.0mL/min.Internal standardwas used to matrixcorrection,and the mass spectrum interference was corrected by means of editting element correction equation.The r value of all the calibration curves was higher than 0.9999,the detection limit of the method was between 0.007~ 0.5 μg/g and RSD was between 1.05%~4.91%,and the recovery rate was 89%~127%.Using the new method to analysis the national standard soil samples of GSS-13,the determination value of each element was consistent with the standardvalue.The recovery rate of the 13 elements in agricultural soil of Jilin was 88%~134%.It proved that the results by this methodwere consist with those obtained by inductively coupled plasma atomic emissionspectrometry(ICP-AES).

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杨立国,乔冬云,胡鹏宇,许志勇,刘建国,候月,李明辉,吕雯迪.全自动消解-电感耦合等离子体质谱法测定环境土壤中13种元素[J].中国土壤与肥料,2019,(1):190-195.

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  • 收稿日期:2017-12-29
  • 最后修改日期:
  • 录用日期:2018-03-19
  • 在线发布日期: 2019-03-19
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