| 8-羟基喹啉重量法测定钼时铌的影响及消除 |
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| 引用本文： | 陶宜.8-羟基喹啉重量法测定钼时铌的影响及消除[J].大氮肥,2001,24(2):142-144. |
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| 作者姓名： | 陶宜 |
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| 作者单位： | 安庆石油化工总厂化肥厂,安徽,安庆,246001 |
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| 摘 要： | 8-羟基喹啉法测定钼时，若样品中含铌，铌会水解成铌酸沉淀，因铌酸夹带少量的钼共沉淀，往往造成测定结果偏低。讨论并选取了氢氟酸做为铌的掩蔽剂，使之与铌络合，又不干扰钼的测定，从而解决了测定钼时铌的干扰问题。
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| 关 键 词： | 羟基喹啉 钼 铌 干扰消除 重量法 测定 |
| 修稿时间： | 2000年4月4日 |
NIOBIC EFFECT AND ELIMINATION IN MOLYBDENUM DETERMINATION WITH 8-HYDROXY QUINDINE |
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| Tao Yi.NIOBIC EFFECT AND ELIMINATION IN MOLYBDENUM DETERMINATION WITH 8-HYDROXY QUINDINE[J].Large Scale Nitrogenous Fertilizer Industry,2001,24(2):142-144. |
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| Authors: | Tao Yi |
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| Abstract: | When 8 hydroxy quindine is used to determine molybdenum by weight,niobium may be hydrolysed into niobic acid and deposits if there is niobium in the sample.It will make the detemination result on the lower side,because niobic acid can carry a few molybdenum and deposits together The paper discusses and chooses hydrofluoric acid as the shelter reagent to complex with niobium thus the interference of niobium to molybdenum detemination is eliminated |
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| Keywords: | hydroxy quindine niobium molybdenum interference elimination |
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