| 罗丹明6G—磷钼杂多酸离子缔合物显色反应的研究及其应用 |
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| 引用本文： | 王明雄,丁正学,娄兆文,段聂晶.罗丹明6G—磷钼杂多酸离子缔合物显色反应的研究及其应用[J].湖北大学学报(自然科学版),1988(4). |
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| 作者姓名： | 王明雄 丁正学 娄兆文 段聂晶 |
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| 作者单位： | 湖北大学化学系
(王明雄，丁正学，娄兆文)，湖北大学化学系(段聂晶) |
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| 摘 要： | 本文研究了在聚乙烯醇存在下,罗丹明6G—磷钼杂多酸离子缔合物显色反应的条件,光度特性和缔合物的组成。离子缔合物的表观摩尔吸光系数ε_(548)=1.87×10~5l·mol~(-1)·cm~(-1),磷量在0—2.0ug/25ml范围内服从比尔定律。本法灵敏度高,稳定性好,操作简便,容易掌握,用于铜合金中磷的测定,获得满意结果。
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| 关 键 词： | 罗丹明6G 磷钼杂多酸 磷 |
STUDY ON THE COLOUR REACTION OF THE ION-ASSOCIATION COMPLEX OF MOLYBDOPHOSPHORIC ACID WITH RHODAM1NE 6G AND ITS APPLICATION |
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| Wang Mingxiong Ding Zhengxue Lou Zhaowen Duan Niejing.STUDY ON THE COLOUR REACTION OF THE ION-ASSOCIATION COMPLEX OF MOLYBDOPHOSPHORIC ACID WITH RHODAM1NE 6G AND ITS APPLICATION[J].Journal of Hubei University(Natural Science Edition),1988(4). |
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| Authors: | Wang Mingxiong Ding Zhengxue Lou Zhaowen Duan Niejing |
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| Institution: | Department of Chemistry |
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| Abstract: | A sensitive colour reaction of rhodamine 6G (RH-6G)-Molybdophos-phoric acid-RVA system has been studied.The ion-associate complex exhibits maximum absorption at 548nm. The value of apparent molar absorptivity is found to be 1.87x1051- mol-1 -cm-1. Beer's law is obeyed in the range of O to 2.0ug of P (V) per 25 ml. The molar ratio of P(V) to RH-6G in ion-associate complex is established to be 1:3. The method has been applied to the determination of P in Copper alloy with satisfactory results. |
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| Keywords: | Rhodamine 6G Molybdophosphoric acid Phosphorus |
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