| 土壤及蔬菜中微量汞的同位素稀释电感耦合等离子体质谱测定 |
| |
| 引用本文： | 秦德萍,黄志勇,邓志兰,陈婷. 土壤及蔬菜中微量汞的同位素稀释电感耦合等离子体质谱测定[J]. 分析测试学报, 2010, 29(2). DOI: 10.3969/j.issn.1004-4957.2010.02.008 |
| |
| 作者姓名： | 秦德萍 黄志勇 邓志兰 陈婷 |
| |
| 作者单位： | 集美大学,生物工程学院,福建,厦门,361021 |
| |
| 基金项目： | 国家自然科学基金资助项目，福建省科技计划重点项目，福建省基金资助项目，集美大学创新团队基金资助项目 |
| |
| 摘 要： | 建立了微波消解电感耦合等离子体质谱同位素稀释(ID/ICP-MS)测定微量汞的方法。考察了仪器参数及测量条件对汞同位素比值RHg(202Hg/200Hg)测量的影响,根据同位素比值测量误差的传递因子优化了富集同位素稀释剂(202Hg98%)的加入量,并以铊同位素比值(205Tl/203Tl)作为RHg(202Hg/200Hg)测量时发生质量歧视效应的校正因子;通过反同位素稀释法标定了富集汞同位素稀释剂的浓度。利用所建立的ID/ICP-MS方法测定了杨树叶(GBW07604)和湖积物(GBW07423)2种标准参考物中汞的含量,回收率分别为112%和100%。该方法具有准确度高、精密度好等优点,且样品前处理简便,适用于土壤及蔬菜等样品中微量及痕量汞的准确测定。
|
| 关 键 词： | 同位素稀释 电感耦合等离子体质谱 汞 土壤 蔬菜 |
Determination of Trace Mercury in Vegetable-growing Soil and Vegetable by Isotope Dilution Inductively Coupled Plasma Mass Spectrometry |
| |
| QIN De-ping,HUANG Zhi-yong,DENG Zhi-lan,CHEN Ting. Determination of Trace Mercury in Vegetable-growing Soil and Vegetable by Isotope Dilution Inductively Coupled Plasma Mass Spectrometry[J]. Journal of Instrumental Analysis, 2010, 29(2). DOI: 10.3969/j.issn.1004-4957.2010.02.008 |
| |
| Authors: | QIN De-ping HUANG Zhi-yong DENG Zhi-lan CHEN Ting |
| |
| Affiliation: | QIN De-ping,HUANG Zhi-yong,DENG Zhi-lan,CHEN Ting(College of Bioengineering,Jimei University,Xiamen 361021,China) |
| |
| Abstract: | A method using isotope dilution inductively coupled plasma mass spectrometry(ID/ICP-MS) for the determination of trace Hg in vegetable-growing soil and vegetable samples was established.The concentrations of Hg in soil and vegetable were calculated with ID formula based on the accurate measurement of isotope ratio RHg(202Hg/200Hg) with ICP-MS.Instrumental parameters,amounts of spike isotopic reagent(202Hg >98%),mass bias,dead time,and isobaric and polyatomic interferences were discussed and optimized.An int... |
| |
| Keywords: | isotope dilution inductively coupled plasma mass spectrometry(ICP-MS) mercury soil vegetable |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
