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中国农学通报 ›› 2018, Vol. 34 ›› Issue (26): 99-103.doi: 10.11924/j.issn.1000-6850.casb17070060

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

不同微波消解方法对黄土中镉、铅ICP-MS测定的影响

耿雅妮,董洁,任雪盈,张 军   

  1. 陕西省灾害监测与机理模拟重点实验室,宝鸡文理学院 地理与环境学院,宝鸡文理学院 地理与环境学院,宝鸡文理学院 地理与环境学院
  • 收稿日期:2017-07-13 修回日期:2018-08-21 接受日期:2017-09-19 出版日期:2018-09-19 发布日期:2018-09-19
  • 通讯作者: 张 军
  • 基金资助:
    旱区地下水文与生态效应教育部重点实验室项目“重金属在包气带的运移机理模拟及植物修复研究”(310829151140);陕西省灾害监测与 机理模拟重点实验室项目“渭河宝鸡段需水量测算与调控研究”(12JS011);宝鸡市科技计划项目“基于GIS 的宝鸡市土壤重金属空间分布特征、源解 析及风险评价”(2017JH2-25),陕西省地理学重点资助学科资助。

Effects of Different Microwave Digestion Methods on ICP-MS Determination of Cd and Pb in Loess Soil

耿雅妮,,任雪盈 and 张 军   

  • Received:2017-07-13 Revised:2018-08-21 Accepted:2017-09-19 Online:2018-09-19 Published:2018-09-19

摘要: 采用不同的微波消解方法消解黄土,用ICP-MS测定重金属镉和铅,并应用正交实验分析数据,以确定黄土中镉和铅最优的微波消解测试方法。结果表明影响微波消解ICP-MS测定黄土中镉、铅含量准确度的主次因素是微波消解条件>土壤克数>酸配比,并且得出镉的最优测试条件为A2B3C1(0.15g土壤样品,硝酸:过氧化氢:氢氟酸=6:2:2,第一种微波消解条件),铅的最优测试条件为A2B1C1(0.15g土壤样品,硝酸:盐酸:氢氟酸=6:2:2,第一种微波消解条件。在最优条件下,测得的镉和铅回收率分别为103%,97%,测定回收率较高。

关键词: 大豆, 大豆, 高产品种, 骨干亲本, 指纹图谱, SSR

Abstract: Cadmium and lead in loess were measured by ICP-MS using different microwave digestion methods, and an orthogonal experiment was designed to analyze the data to determine the best microwave digestion test method for cadmium and lead. The results showed that the importance order of cadmium and lead content in loess by microwave digestion-ICP-MS was the condition of microwave digestion> soil mass> acid ratio. And the optimal test condition of Cd was A2B3C1 (0.15 g soil samples, nitric acid: hydrogen peroxide: hydrofluoric acid=6:2:2, the first microwave digestion condition) and the optimal test condition of Pb was A2B1C1 (0.15 g soil samples, nitric acid: hydrochloric acid: hydrofluoric acid=6:2:2, the first microwave digestion condition). The recovery rate of Cd and Pb was 103% and 97% respectively under the optimal test condition, and the accuracy was relatively high.