| 饲料中总磷、无机磷和有机磷的含量测定 |
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| 引用本文： | 袁东,封雪松,付大友,袁基刚. 饲料中总磷、无机磷和有机磷的含量测定[J]. 四川理工学院学报(自然科学版), 2002, 15(4): 42-46 |
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| 作者姓名： | 袁东 封雪松 付大友 袁基刚 |
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| 作者单位： | 四川轻化工学院材料与化学工程系,四川,自贡,643033 |
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| 摘 要： | 采用磷钼钒分光光度法研究了饲料中的总磷、无机磷、有机磷的含量。在酸性条件下,磷酸与钼酸铵[(NH4)2MoO4]和钒酸铵(NH4VO3)混合试剂形成黄色络合物,其最大吸收波长为374nm,摩尔吸光系数=e3.43×103 L·mol-1·cm-1,回收率为97.0%~101.5%,结果令人满意。
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| 关 键 词： | 分光光度法 总磷 无机磷 有机磷 |
| 文章编号： | 1008-438X(2002)04-0042-05 |
| 修稿时间： | 2002-08-29 |
Determination of Total Phosphorus, Inorganic Phosphorus and Organic Phosphorus in Feeds |
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| YUAN Dong,FENG Xue-song,FU Da-you,YUAN Ji-gang. Determination of Total Phosphorus, Inorganic Phosphorus and Organic Phosphorus in Feeds[J]. Journal of Sichuan University of Science & Engineering(Natural Science Editton), 2002, 15(4): 42-46 |
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| Authors: | YUAN Dong FENG Xue-song FU Da-you YUAN Ji-gang |
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| Abstract: | Determination of total phosphorus, inorganic phosphorus and organic phosphorus in feeds are studied by using phosphorus-molybdenum-vanadium spectrophotometry. In the acid solution, H3PO4 reacts with (NH4)2MoO4 and NH4VO3 to form yellow complex with absorptivity maximum at 374nm, and the molar absorptivity is 3.43×103 L·mol-1·cm-1, the recovery is 97.0%~101.5%. |
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| Keywords: | spectrophotometry total phosphorus inorganic phosphorus organic phosphorus |
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