| 分光光度法间接测定钢铁及水样中的微量磷 |
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| 引用本文： | 杜斌,宋桂兰,陈文华,刘成亮.分光光度法间接测定钢铁及水样中的微量磷[J].济南大学学报(自然科学版),1992(2). |
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| 作者姓名： | 杜斌 宋桂兰 陈文华 刘成亮 |
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| 作者单位： | 山东建材学院应用化学系，山东建材学院应用化学系，山东建材学院应用化学系，山东建材学院应用化学系 |
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| 摘 要： | 研究了在强酸性介质中,间接测定钢铁及水中微量磷的方法。该方法是利用磷与钼酸铵形成磷钼杂多酸,经乙酸丁酯萃取至有机相,以硫酸乙醇洗液洗去游离的钼,用氨水反革至水相,其氨性溶液以硫氰酸钾为显色剂,吐温-20进行胶束增溶,通过测定体系的吸光度而间接测定磷。
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| 关 键 词： | 分光光度法 微量磷 磷钼酸盐 |
DETERMINATION OF TRACE PHOSPHORUS IN STEEL AND WATER WITH INDIRECT SPECTROPHOTOMETRY |
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| Du Bin Song Guilan Chen Wenhua Liu Chengliang.DETERMINATION OF TRACE PHOSPHORUS IN STEEL AND WATER WITH INDIRECT SPECTROPHOTOMETRY[J].Journal of Jinan University(Science & Technology),1992(2). |
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| Authors: | Du Bin Song Guilan Chen Wenhua Liu Chengliang |
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| Affiliation: | Department of Applied Chemistry |
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| Abstract: | The method which can indirectly determine the trace phosphorus in steel and water in the medium of strong acid is studied in this paper. The method is based on the molybdophosphate which is combined by phosphorus and ammonium molybdate. After the molybdophosphate is extracted into the organic phase of butyl acetate and the free molybdeum is discarded with washing solution of sulfuricethanol and then is back extracted into ammonia liquor, the trace phosphorus is determined by indirectly by determination the absorbance of the system with spectrophotometry. |
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| Keywords: | spectrophotometry trace phosphorus molybdophosphate |
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