高周波誘導結合プラズマ発光分光分析法による河川水,工場排水中の多元素の同時定量

書誌事項

タイトル別名
  • Simultaneous determination of multi elements in river water and industrial waste water by inductively coupled plasma-optical emission spectrometry
  • コウシュウハ ユウドウ ケツゴウ プラズマ ハッコウ ブンコウ ブンセキホウ

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抄録

A method was described for the determination of trace elements (Be, Zn, Pb, Cd, Ni, Mn, Fe, Cr, V and Cu) in water sample. The plasma operating conditions employed were as follows: RF power; 1.6 kW, Ar flow rate; 11 l/min (coolant), 1.3 l/min (plasma) and 1.0 l/min (carrier), observation height in plasma; 16 mm above coil and nebulizer; coaxial and pneumatic nebulizer. Spectral intensity was reduced steadily with increasing concentration of concomitants up to 2% (20% reduction). This interference was probably caused by change in physical properties of the nebulized solution. Water samples contain various concomitants and vary widelyin composition. To assess the extent of the physical Interference occured in actual samples, several of river water samples were analysed by the standard addition method; aqueous standards were usually used for calibration. The results obtained by using aqueous standards were lower than those obtained by the standard addition method. In the worst case, where the concentration of concomitants was very high (9.6%), the values were lower by 40%. A correction for the interference was required if concomitants were present at the concentration exceeding about 0.5%. This correction involved monitering the concentration levels of concomitants in water samples. Detection limits were in the range of (0.34) ng/ml for most elements studied. The inductivery coupled plasma-optical emission spectrometry could be successfully used for the analysis of water samples.

収録刊行物

  • 分析化学

    分析化学 28 (9), 555-560, 1979

    公益社団法人 日本分析化学会

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