摘要
目前,国内外用AAS法测定添加剂及润滑油中的钡含量,一般都用N<sub>2</sub>O—C<sub>2</sub>H<sub>2</sub>火焰原子化。由于氧化亚氮价格昂贵,来源不便,以及对仪器型号和操作条件都有特殊的要求。根据国情本法用空气代替了氧化亚氮,以非高温火焰原子化测定钡。在国内外文献中尚未见有成功的报道。为了提高原子化效率,本法对增感剂的作用进行了研究。
For the sake of increasing the atomizing efficiency of air-acetylene flame, a systematic investigation on the enhancing agents has been made. It was found that soudium dodecyl sulfonate and benzyl trimethye ammonium chloride mixture as enhancing agent gives the best result.Comparison is made between the atomization using nitrous oxide-acetylene and airacetylene flame. In the former case, the variation coefficient for Ba is 0.9—1.9%; in latter case that is 1.2—2.5%.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1991年第6期65-68,共4页
Spectroscopy and Spectral Analysis
