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乙炔-空气火焰原子吸收光谱法测定SN防水滴剂中的Ca和Mg

DETERMINATION OF Ca AND Mg IN SN ANTIFOGGING AGENT BY OXY-ETHYLENE FLAME ATOMIC-ABSORPTION SPECTROMETRY
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摘要 本文探讨了用乙炔-空气火焰原子吸收光谱法测定SN防水滴剂中Ca和Mg的条件,比较了各抗干扰剂,乙炔用量,燃烧器高度及析访法等对减少基体干扰的效果。在乙炔/空气=0.156,添力0.8%硼为抗干扰剂,并用标准添加分析法进行测试,SN防水滴剂中Ca含量为5.5×10-5,Mg含量为7.5×10-6,相对误差<7%。回吸率分别为99%和103%。 This study was conducted to assess the effect of various anti-interferenceagents,ethyene consumption,height of flame-torch and analysis method on the reduction ofbasic interference during determination of Ca and Mg in SN antifoggig agent by oxy-ethy-lene flame atomic-absorption spectrometry. With an ethylene/air ratio of0.156,0.8% boricacid as anti-interference agent and using standard additive analysis method,it was deter-mined that in the SN anti-fogging agent sample the Ca content was 55.0×10-4% and Mgcontent 7.5×1O-4%,with a relative error <7%,and the recovery rate being 99% and103% respectively.
机构地区 上海农学院
出处 《华南农业大学学报》 CAS CSCD 1994年第1期155-159,共5页 Journal of South China Agricultural University
关键词 塑料薄膜 防水滴剂 光谱法 Oxy-ethylene flame atomic-absorption spectrometry SN antifogging agent
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