高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (8): 1189.

• 论文 • 上一篇    下一篇

在线阴离子富集-石墨炉原子吸收光谱法的研究

苏星光1, 张寒琦1, 梁枫1, 金钦汉1, 白锁柱2   

  1. 1. 吉林大学化学系, 长春 130023;
    2. 内蒙古民族师范学院化学系, 通辽 028043
  • 收稿日期:1998-09-28 出版日期:1999-08-24 发布日期:1999-08-24
  • 通讯作者: 金钦汉
  • 作者简介:苏星光,女,32岁,博士研究生,讲师.

Studies on the On-line Anion Exchange Preconcentration for Graphite Furnace Atomic Absorption Spectrometry

SU Xing-Guang1, ZHANG Han-Qi1, LIANG Feng1, JIN Qin-Han1, BAI Suo-Zhu2   

  1. 1. Department of Chemistry, Jilin University, Changchun 130023, China;
    2. Department of Chemistry, Inner Mongolia National Teachers College, Tongliao 028043, China
  • Received:1998-09-28 Online:1999-08-24 Published:1999-08-24

PDF (PC)

被引次数

4

摘要： 将流动注射在线预富集系统与石墨炉原子吸收光谱法联用,以强碱型阴离子交换纤维为柱填充材料,以浓盐酸为络合剂,以稀盐酸为洗脱液,用固定洗脱液体积方式测定了Cd,Pb和Zn,富集倍数分别为19,17和15(与直接引入40μL进样量相比),检出限(3σ,ng/L)分别为1.1,8.2和2.6.

关键词: 流动注射分析, 石墨炉原子吸收光谱法, 在线富集

Abstract: Flow injection preconcentration system was introduced into graphite furnace atomic absorption spectrometry in this study. Strongly basic anion exchange fiber was selected as the absorption material, concentrated HCl as complex agent, diluted HCl as eluant. Volume-based elution technique was proposed and applied in this study. Cd, Fe and Zn were determined by the proposed method. The enrichment factors are 19, 17 and 15 (compared with 40 μLsample), the detection limits for the Cd, Pb and Zn are 1.1, 8.2 and 2.6 ng/L, respectively.

Key words: Flow injection analysis, Graphite furnace atomic absorption spectrometry, On-line preconcentration

中图分类号: 

TrendMD: