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将SHA无机离子交换剂应用于在线预浓集FIA—AAS系统中,对痕量Cd、Zn、Fe的测定进行了研究。三个元素的检出限分别为0.1ng/ml,0.3ng/ml,0.6ng/ml。相对标准偏差小于3%(定时进样)和5%(定量进样).用标准物分析和回收实验评价了方法的准确度.对各种实际水样的测定结果今人满意。
Abstract:SHA as inorganic ion-exchanger, is used in a flow injection System before flame atomic absorption spectrometry for preconcentration and determination of trace cadmium, zinc and iron in water samples. The limit of detection is 0. 1 ng/ml(Cd), 0. 3ng/ml(Zn), 0. 6ng/ml (Fe). The relative standard deviation is <3% for injection based on time and 5% for injection based on volume.
[1]黄志英,李惕川,钟连红,离子交换与吸附,1993,9(6),498~504[2]黄志英,李惕川,于炳泉,中国环境监测,1992,8(5),8~11[3]李新云,发明专利公开号(N1039567A)(羟基磷灰石合成及其用途)[4]J.茹奇卡,E.H.汉森,流动注射分析,1986[5]ZhangYanan,RibyPhilip,G.CoxAlanandW.McleodCameron;Analyst,1988,113,125~128
基本信息:
中图分类号:O657.3
引用信息:
[1]黄志英,李惕川,齐振光.流动注射在线预浓集原子吸收光谱分析废水中的Cd~(2+)、Fe~(3+)、Zn~(2+)[J].离子交换与吸附,1996(01).