DU Ying-qiu.Determination of Arsenic and Mercury in Soil by Atomic Fluorescence Spectrometry with Aquafortis Bath Digestion[J].HEILONGJIANG AGRICULTURAL SCIENCES,2013,(10):100-103.
王水消解-原子荧光光谱法测定土中砷和汞
- Title:
- Determination of Arsenic and Mercury in Soil by Atomic Fluorescence Spectrometry with Aquafortis Bath Digestion
- 文章编号:
- 1002-2767（2013）10-0100-04
- Keywords:
- atomic fluorescence spectrometry; soil; arsenic; mercury
- 分类号:
- X132
- 文献标志码:
- A
- 摘要:
- 为探讨检测土壤中砷和汞的新方法，采用王水-水体系进行消解，应用原子荧光光谱法对土壤样品中的砷和汞进行测定。结果表明：当砷的质量浓度处于0～100.0 ng.mL-1，汞的质量浓度处于0～2.0 ng.mL-1时，浓度与荧光强度均能呈良好的线性关系，相关系数分别为0.999 9和0.999 3，方法的检出限分别为0.260和0.022 ng.mL-1，将该方法用于不同土壤标准物质的测定，测定结果均在标准值允许范围内，RSD处于1.3%～3.5％，说明该方法线性范围宽，稳定性好，灵敏度高，准确度高，可广泛用于批量土样中砷和汞的测定。
- Abstract:
- To explore new methods of determinating arsenic and mercury in soil,through atomic fluorescence spectrometry with aquafortis digestion,arsenic and mercury in soil samples were determinated.The results showed that good linear relationship when concentrations of arsenic was 0~100 ng?mL-1 and mercury was 0~2.0 ng?mL-1,the correlation coefficient were 0.999 9 and 0.999 3 respectively,the detection limits were 0.260 and 0.022 ng?mL-1,the method was used for the determination of arsenic and mercury in different soil standard materials,results were in the standard value range,RSD was 1.3%~3.5%,that indicatd that the method had wide linear range,good stability,high sensitivity,high accuracy and it could be widely used for the determination of arsenic and mercury in bulk soil samples.
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备注/Memo
收稿日期：2013-05-09
作者简介：杜英秋（1981-），女，黑龙江省哈尔滨市人，硕士，助理研究员，从事光谱分析研究。E-mail:xunzhao1981@163.com。