中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (2): 85-88.

• 研究论文 • 上一篇    下一篇

石墨探针采样/石墨炉原子吸收光谱测定大气微粒物质中的痕量铁

张必成   

  1. 湖北大学化学系 武汉 430062
  • 收稿日期:1993-08-18 修回日期:1993-11-05 出版日期:1994-04-10 发布日期:1994-04-10

Determination of Trace Iron in Atmospheric Particulate Matter by Graphite Probe Filter Collection and Graphite Furnace Atomic Absorption Spectrometry

Zhang Bicheng   

  1. Department of Chemistry, Hubei University, Wuhan 430062
  • Received:1993-08-18 Revised:1993-11-05 Published:1994-04-10 Online:1994-04-10

PDF

434

摘要： 采用一定规格的石墨探针直接收集大气微粒物质,并采用原子吸收光谱法测定其中的痕量铁。

关键词: 原子吸收光谱法, 石墨探针, 大气微粒物质, 痕量铁

Abstract: Trace amount of iron in atmospheric particulate matter has been directly determined by graphite probe furnace atomic absorption spectrometry after collection with a graphite probe filter.The method was accurate,sensitive,and rapid.It has a recovery of 98% and a precision of 3.0% RSD, being checked against the certified values of NBS SRM-1648 urban particulate matter. The concentration of iron and absorbance (Peak-area mode) showed an excellent linear relation in the range of 0～100ng/ml and no memory effect.The characteristic mass and detection limit of iron were 14.6pg and 24.0pg, respectively.

Key words: atomic absorption spectrometry, graphite probe, atmospheric particulate matter, trace iron

网站版权 © 应用化学     本网站备案：吉ICP备12000082号