Study on Interference of Coexisting Elements and its Elimination Methods during Cobalt Determination by Potentiometric Titration AITranslate
Abstract AITranslate
Experimental study was made of interference effects of the coexisting elements including Mn, As, Cr and Fe on cobalt determination by potentiometric titration. The interference elimination methods are proposed,that is oxidizing low valence Cr （Ⅲ） ,Fe （Ⅱ ） and As （Ⅲ） to high valence Cr（ Ⅵ） ,Fe （Ⅲ） and As （Ⅴ）, and oxidizing Mn （ Ⅱ ） to MnO2 precipitate to be separated and removed. Otherwise, MnOe precip- itate is washed and reduced, and then its cobalt content is determined with flame atomic absorption spec trometry to equalize the measured value by potentiometric titration.
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Basic Information:
DOI：
Chinese Library Classification Number:O655.2[理学—分析化学]
Citation Information:
Experimental study was made of interference effects of the coexisting elements including Mn, As, Cr and Fe on cobalt determination by potentiometric titration. The interference elimination methods are proposed,that is oxidizing low valence Cr （Ⅲ） ,Fe （Ⅱ ） and As （Ⅲ） to high valence Cr（ Ⅵ） ,Fe （Ⅲ） and As （Ⅴ）, and oxidizing Mn （ Ⅱ ） to MnO2 precipitate to be separated and removed. Otherwise, MnOe precip- itate is washed and reduced, and then its cobalt content is determined with flame atomic absorption spec trometry to equalize the measured value by potentiometric titration.
quote
| GB/T 7714-2015 | [1] SONG Hai-feng. Study on Interference of Coexisting Elements and its Elimination Methods during Cobalt Determination by Potentiometric Titration[J]. Rare Metals and Cemented Carbides, 2013(3): 61-64. |
| MLA | [1] SONG Hai-feng. "Study on Interference of Coexisting Elements and its Elimination Methods during Cobalt Determination by Potentiometric Titration." Rare Metals and Cemented Carbides, no. 3, 2013, pp. 61-64. |
| APA | [1] SONG Hai-feng. (2013). Study on Interference of Coexisting Elements and its Elimination Methods during Cobalt Determination by Potentiometric Titration. Rare Metals and Cemented Carbides(3), 61-64. |
| IEEE | [1] SONG Hai-feng, "Study on Interference of Coexisting Elements and its Elimination Methods during Cobalt Determination by Potentiometric Titration," Rare Metals and Cemented Carbides, no. 3, pp. 61-64, 2013. keywords: {cobalt determination;potentiometric titration;coexisting element;interference} |