| 反相流动注射催化光度法测定痕量锰的研究 |
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| 引用本文： | 刘秀萍.反相流动注射催化光度法测定痕量锰的研究[J].山西农业大学学报(自然科学版),1997,17(1):81-84. |
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| 作者姓名： | 刘秀萍 |
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| 作者单位： | 晋中师专化学系 |
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| 摘 要： | 本文基于在氨三乙酸活化下，锰（Ⅱ）对高碘酸钾氧化罗丹明Ｂ褪色的催化作用，建立了痕量锰的反相流动注射分析（ｒＦＩＡ）新方法。该法选择罗丹明Ｂ溶液的最大吸收波长５５５ｎｍ作为测定波长，方法的线性范围为０～１８０μｇ／Ｌ，检出限为５．５μｇ／Ｌ锰（Ⅱ），对２０μｇ／Ｌ锰平行测定１１次的相对标准偏差为１．５％，进样频率为３６次／ｈ。方法应用于水样、黄豆和标准铝合金样中痕量锰的测定，结果较理想
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| 关 键 词： | 流动注射分析 催化光度法 罗丹明B 锰 |
Revers Flow Injection-catalytic Spectrophotometry for Determination of Trace Manhanese |
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| Liu Xiuping.Revers Flow Injection-catalytic Spectrophotometry for Determination of Trace Manhanese[J].Journal of Shanxi Agricultural University,1997,17(1):81-84. |
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| Authors: | Liu Xiuping |
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| Institution: | Liu Xiuping Department of Chemistry,Jin Zhong Teacher's college,Yuci,Shanxi,030600) |
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| Abstract: | A rapid catalytic spectrophotometric method for the determination of trace manganese based on manganese catalyzing decoloration reaction of rhodamin B with potassium periodate in the presence of nitrilo triacetic acid has been established by reverse flow injection technique. The detecting wavelength was 555nm ,the linear range is 0_180ug/L and the detection limit is 5 5ug/L. The relative standard deviation is 1 5% obtained from 11 standard solution each containing20ug/L of manganese. 36 samples can be analysed per hour. The method was applied to the determination of manganese in nature water. Soybean and aluminium alloy with satisfactory results. |
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| Keywords: | Flow injection analysis catalytic spectro-photometry Rhodamine B Manganese |
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