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硝酸—高氯酸与王水回流法在AAS测定中的比较

DOI: 10.3321/j.issn:1000-7091.1988.03.019, PP. 116-120

Keywords: 原子吸收分光光度计,重金属,污泥

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Abstract:

王水迴流法消化污泥和土壤,较常规的王水消化法可多提取10%的重金属。本实验应用1:1的硝酸-高氯酸和铝制消化器对128个土壤样品镉、铬、铜、铅、锰、镍和锌7个元素进行了测定,并与王水迴流法所测数据进行了比较。统计结果表明,两种方法所得结果具有极显著的相关性,然而是截然不同的两组数据。除锌外,用硝酸-高氯酸法所得值明显高于王水迴流法,可在实验室广泛使用。在铬的测定中,钠、钾、镁、钙、锰、铝和铁做为潜在的干扰因素及不同火焰状况对测定的影响被加以探讨。结果表明,使用贫氧化亚氮-乙炔火焰不会产生正、负干扰。

References

[1]  Agemian,H,et a1:Evaluation of Extraction Techniques for the Determination of Dletalsin of Metals in Aquatic Sediments,Analyst Vol.101,1976,761-767
[2]  Thompson K,C.et al.:Determination of Chromiumin Natural Waters and Sew age Effluents by Atomic-absorption Spettrophotometry Using an Air-Acetylene F1ame,AnalysT,Vol.104,1979,224-231
[3]  Kirbrigttr,G.F,et al.:Atomic Absorption and Fluorescence Spectruscopy,Academicpress Inc Ltd.,Land on,1974
[4]  Nicholas.D.J.D.et al.:Trace Element in.Soil Plant Animal Systems,Academic Press Inc.Ltd.,London,1975
[5]  Vogel,A.T.:A Text-Book of Press Quantitative Inorganic AnalysisIncluding Including Elementary Instrument Analysis,Academic Press Inc.Ltd.,Third Edition,London,1961
[6]  Berrow,M .L.et al.:Extracyion of Metals from Soil and Sewage Sludges by Refluxing with Aquaregia, Analyst,Vol.108,1983,277-285
[7]  Cresser,M.S.:A Possible Source of Error in Flame Atomic Absorption Spectromrtry,,Laboratory Practice,Marsh 1977,171-173
[8]  Thompson,K.C.et al.:Simplified Methord for the Determination of Cd,Cr,Cu,Ni,Pb and Zn in Sewage Sludge Using Atomic absorption Spemrophotometry,Analyst ,Vol.105.1980,883-896
[9]  Ritter.et al.:Comparison of Sample preparation Techniques for AA Analysis ofSewage of Sludge and Soil,At.Absorpt.Newsl.,Vol.17.1978.70

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