摘要
本文提出了以聚三氟氯乙烯（ＰＴＦＣＥ）为卤化剂，悬浮体制样／电热蒸发等离于体原子发射光谱（ＥＴＶ－ＩＣＰ－ＡＥＳ）直接测定水系沉积物（固体粉末）中微量铋的新方法。加入５％ＰＴＦＣＥ，利用由化反应，改善Ｂｉ的蒸发。方法的检出限为２４ｎｇ·ｍｌ￣（－１），相对标准偏差３．２％，该法用于直接测定固体粉末水系沉积物中的Ｂｉ．结果与参考值吻合，回收率９９．７－１０６．８％。
Self-made polytrifluorochloroethylene slurry has been taken as halogenation agent in electrothermal vaporization inductively coupled plasma atomic emission spectrometry (ETVICP-AES) for determination of Bismuth,which promotes the evaporization of Bi. The main working parameters for ETV-ICP-AES have been optimized and the comcentration of the halogenation agent was examined for the Bi determination. The detection limit of Bi was 24ng/ml and relative standard deviation 3. 2% (n=5). The proposed method has been applied successfully to direct determination of Bi in water sediment. The recovery ranged between 99. 7-106. 8%.
出处
《环境科学与技术》
CAS
CSCD
北大核心
1996年第1期27-30,共4页
Environmental Science & Technology
关键词
聚三氟氯乙烯
电热蒸发
沉积物
铋
水分析
Polytrifluorochloroethylene slurry, Electrothermal vaporization, Plasma spectrometry, Water sediment, Bismuth
