摘要
调查了钾、钠、钙的化合物在热解管(PGT)和衬钽管(TaT)中的分子背景。结果表明,衬钽管对NaCl、KCl、CaCl_2、Ca(NO_3)_2的背景吸收均具有明显抑制作用。
The mclecular background absorption produced by the compounds of K, Na and Ca in the range of 200～400nm in two kinds of atomizers, the pyrolytic graphite tube(PGT) and the tantalum foil-lined tube(TaT), has been investigated. The background absorption of NaCl, CaCl_2 and Ca(NO_3)_2 in TaT was much lower than that in PGT under conditions of various charring and atomization temperatures. For KCl, however the lower background absorption in TaT was significantly observed only when the atomization temperature was below 2000℃.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1991年第2期191-193,共3页
Chinese Journal of Analytical Chemistry
关键词
石墨炉
分子背景
衬钽管
热解管
Graphite furnace, Tantalum foil-lined tube, Molecule background
