| 光谱学与光谱分析 |
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| Kinetic-Spectrophotometric Determination of Trace Manganese by IO-4-Tetrabase New System and the Mechanism |
| LI Jian-guo, ZHANG Min, ZHAO Kang |
| School of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215006, China |
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Abstract A new kinetic-spectrophotometric method for the determination of trace amounts of manganese(Ⅱ) has been proposed. The method is based on the manganese(Ⅱ) catalyｚinｇ the coloring reaction of tetrabase[4,4’-bis(dimethylamino)-diphenylmethane] oxidized by sodium periodate in HAc-NaAc(pH≈5.0) medium. The linear range of the determination of manganese is 0-4 μg·L-1, and the detection limit is 4.6×10-11 g·mL-1. The method is not only simple, rapid and with good sensitivity but also without heating. It has been used for the determination of trace amounts of manganese in water sample with satisfactory results. The mechanism of the reaction is discussed in detail.
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Received: 2002-09-26
Accepted: 2003-02-16
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Corresponding Authors:
LI Jian-guo
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| Cite this article: |
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LI Jian-guo,ZHANG Min,ZHAO Kang. Kinetic-Spectrophotometric Determination of Trace Manganese by IO-4-Tetrabase New System and the Mechanism [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(07): 870-872.
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| URL: |
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http://www.gpxygpfx.com/EN/Y2004/V24/I07/870 |
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