| 混合增效剂存在下停流FIA光度法测定钼—Mo—SCN^_—MG体系 |
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| 引用本文： | 戚文彬,陈笑梅.混合增效剂存在下停流FIA光度法测定钼—Mo—SCN^_—MG体系[J].冶金分析,1992,12(6):17-19. |
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| 作者姓名： | 戚文彬 陈笑梅 |
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| 作者单位： | 杭州大学化学系，杭州大学化学系 杭州 310028，杭州 310028杭州商检局 |
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| 基金项目： | 国家自然科学基金，浙江省自然科学基金资助课题 |
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| 摘 要： | 本文研究了在PVA—Triton X-100存在下,用Mo—SCN~-—MG体系测定微量钼的停流流动注射-光度法,克服了体系稳定性差的缺点,成功地用于钢铁样品和钼铁矿附近井水中微量钼的测定。比尔定律范围40～200ppb,RSD<1％,回收率103％～108％,测定频率24样/h。
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| 关 键 词： | 混合增效剂 钼 孔雀绿 FIA光度法 |
In the Presence of Mixed Enhacing Agent Determination of Molybdenum by Stop-Flow Injection Spectrophotometry -Mo-SCN- MG System |
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| Qi Wenbin,Chen Xiaomei.In the Presence of Mixed Enhacing Agent Determination of Molybdenum by Stop-Flow Injection Spectrophotometry -Mo-SCN- MG System[J].Metallurgical Analysis,1992,12(6):17-19. |
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| Authors: | Qi Wenbin Chen Xiaomei |
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| Abstract: | A new flow injection spectrophotometric method for determinaton of small amoumts of Mo(VI) using Mo- SCN - niU:Iiit3 graan syste-n in the presence of Triton X-100-PVA was studied. In virtue of the advantages of effective reproducibility and easily controlling the reaction time of the FIA the ua-stability of the system was overcome. The new method has been used to determine small amounts of Mo(VI) in iron and steel samples as well as in well water samples near the Mo-Fe ores. The Beer's law is obeyed in the range of 40-200 ppb Mo. The recoveries of the method are 103-108%. The frequency of determination was 24 samples per hour. |
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| Keywords: | Mixed enhacing agent Stop-FIA Molybdenum Malachite green |
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