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Volume 15 Issue 4
Oct.  2021
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Article Contents
Shao Guangdi, Li Kun, Dan Xiaoquan. Determination of Cadmium by Graphite Furnace Atomic Absorption Spectrometry Using Ammonium Sulphate-Tris modifier[J]. Chinese Journal of Engineering, 1993, 15(4): 429-435. doi: 10.13374/j.issn1001-053x.1993.04.021
Citation: Shao Guangdi, Li Kun, Dan Xiaoquan. Determination of Cadmium by Graphite Furnace Atomic Absorption Spectrometry Using Ammonium Sulphate-Tris modifier[J]. Chinese Journal of Engineering, 1993, 15(4): 429-435. doi: 10.13374/j.issn1001-053x.1993.04.021

Determination of Cadmium by Graphite Furnace Atomic Absorption Spectrometry Using Ammonium Sulphate-Tris modifier

doi: 10.13374/j.issn1001-053x.1993.04.021
  • Received Date: 1992-09-21
    Available Online: 2021-10-18
  • A method has been developed for the determination of Cd in enviromental and biological samples by platform graphite furnace atomic absorption spectrometry. Ammonium sulphate and tris-(hydroxymethyl)-aminomethane (Tris) were employed as a chemical modifier. The tolerable pyrolysis temperature for Cd was raised to 850℃ in the presence of modifier, the sensitivity for the determination of Cd was also improved if compared with that obtained by using (NH4)3PO4-Mg(NO3)2 and (NH4)2PO4-HNO3 as chemical modifier.

     

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      沈陽化工大學材料科學與工程學院 沈陽 110142

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