The Interferences of Ammonium Halides on Atomic Absorption Spectrophotometry Using Air-Acetylene Flame

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  • OGURO Hiroshi
    Central Research Laboratory, Matsushita Electric Industrial Co., Ltd.

Bibliographic Information

Other Title
  • 空気-アセチレンフレームを用いる原子吸光分析におけるハロゲン化アンモニウムの干渉
  • 空気‐アセチレンフレームを用いる原子吸光分析におけるハロゲン化アンモニウムの干渉

Description

The atomic absorption behavior of NH4F, NH4Cl, NH4Br and NH4I in the range of 1O-4- 5 x 10-1mol/l on the determination of sixteen elements was studied using air-acetylene flame.<BR>The interferences of ammonium halides on various elements were observed even in the low concentration range of 10-4-10-3 mol/l and they generally increased with the increase of flowrate of fuel gas. The presence of the four ammonium halides decreased the absorption intensity of Pt, Au, Cu, Mn and the existences of NH4F and NH4I decreased the absorption intensity of Cd, Pb, Zn and Co, Ni, Ca, Mo, V, respectively. The addition of NH4Cl and NH4Br increased the absorption intensity of Fe, Co, Ni, Eu, Mg, Ca, Cr, Mo, V, and the presence of NH4F and NH4I increased the absorption intensity of Cr, Mo, V, and Fe, Eu, Mg, Cr, respectively.<BR>No interferences of ammonium halides were observed for other cases. It was found that these interferences could not be due to physical factor, but to some chemical reaction occurring at the lower temperature parts in the flame.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1976 (3), 431-435, 1976-03-10

    The Chemical Society of Japan

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