石墨炉原子吸收法测定钢中微量钡

Determination of Trace Barium in Steel by Graphite Furnace Atomic Absorption Spectrometry

本文研究钢中残存的可溶性钡含量分析，使用ＰＥ５０００原子吸收分光仪，采用仪器发射方式和ＨＧＡ－５００，Ａｓ－１石墨炉的技术；酸溶样品后进样２０μｌ，仪器直接打印出分析结果。此法干扰少，分析速度快，容易掌握，而且灵敏度也很高，可分析钢中０．００５％～０．１０％钡的含量。

Inshis paper,anew analysis method of residual soluble barium in steel utilizing PE5000 atomic spectrometer，HGA500, AS-1 graphite furnace technique using emission mode has been investigated.20μl of sample solution is transfered, after sample is dissolved by acid ,then a report of analysis results is directly printed. This method is provided with.This rapid，simple sensitive,less in th rerence characteristics. Thedetermination range of this new method is at level of 0,005%-0.10%for Ba in steel.