氢化物发生-双道原子荧光光谱法测定化探样品中砷锑铋
Determination of Arsenic, Antimony and Bismuth in Geochemical Samples by Hydride Generation-Double Channel Atomic Fluorescence Spectrometry
-
摘要: 介绍了氢化物发生-双道原子荧光光谱法测定地质化探样品中砷、锑、铋的分析方法。通过一系列方法实验及讨论,确立了较合理的测试条件,准确度及检出限大大改进;通过加入硫脲、抗坏血酸固体粉末,一定程度上减小了稀释倍数,提高了灵敏度;通过实验,砷、锑、铋的负高压/灯电流分别选取280 V/40 mA、280 V/60 mA、280 V/60 mA。方法操作快速、高效、准确,并大大降低了分析成本。
-
关键词:
- 氢化物发生-原子荧光光谱法 /
- 化探样品 /
- 砷 /
- 锑 /
- 铋
Abstract: A method for the determination of arsenic, antimony and bismuth in geochemical samples by hydride generation-double channel atomic fluorescence spectrometry (AFS) was developed. The determination conditions were optimized through a series of experiments. The negative high voltage/lamp current of AFS instrument for determination of arsenic, antimony and bismuth were 280 V/40 mA, 280 V/60 mA, 280 V/60 mA respectively. The dilution factor was reduced in a certain extent by adding solid powder of thiourea-ascorbic acid. Therefore, the sensitivity was improved. Under the optimized conditions, the detection limits and analytical accuracy for the elements were remarkably improved. The method has been applied to the determination of arsenic, antimony and bismuth in geochemical samples with advantages of high sensitivity, high accuracy, high efficiency and low cost.-
Keywords:
- hydride /
- generation-atomic /
- fluorescence /
- spectrometry /
- geochemical
-
-
袁爱萍,唐艳霞,黄玉龙,汪静玲,覃然,吴健玲,蒙文飞.氢化物-原子荧光法测定锑精矿中痕量砷、汞的研究[J].光谱学与光谱分析,2006,26(8):1553-1556. 孙伟.原子荧光光谱法快速测定化探样品中的微量砷、锑、铋、汞[J].光谱实验室,2001,18(4):513-516. 北京科创海光仪器有限公司.原子荧光光度计分析方法手册[Z].2005. 吴海涛.原子荧光光谱分析环境样品中砷锑铋汞易出现的问题及解决方法[J].岩矿测试,2007,26(6): 509-510. 邱宏喜,张汝生,张永红.快速测定金矿样品中的砷锑铋汞[J].黄金,2007,28(6):54-56. 王云玲,武洋,杜少文,刚绪军.微波溶样原子荧光法测定化探样品中的砷、锑、铋和汞[J].黄金,2007,28(1):59-60. 权淑梅,孙建文.原子荧光光谱法测定铜矿中的锑、砷、铋的含量[J].安徽地质,2006(1):52-54. 何炼.原子荧光光谱法直接测定铜矿中的硒[J].岩矿测试,2004,24(3):235-237. 高丽娜,边疆.氢化物发生-原子荧光光谱法同时测定保健品中的砷和锑[J].中国卫生检验杂志,2006,16(11):1333-1334. 孟列群,赵维佳,赵云.氢化物发生-原子荧光光谱法同时测定纺织品中的砷和锑[J].光谱实验室,2005,22(5):1017-1020. 毛振才,杨忠涛.氢化物原子荧光法测定化探样品中的汞砷锑铋[J].岩矿测试,1986,5(3):209-213. 李金莲,邱海鸥,席永清,杨明,汤志勇.原子荧光光谱法测定微量镉的增感效应[J].冶金分析,2006,26(3):21-25. 温晓华,邵超英,张琢,何中发.悬浮液进样-氢化物发生原子荧光光谱法测定土壤中的砷锑硒[J].岩矿测试,2007,26(6):460-464.
计量
- 文章访问数: 1649
- HTML全文浏览量: 0
- PDF下载量: 1480