| 磷锑钼蓝光度法测定矿石中的磷 |
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| 引用本文： | 王燕玲,吕丽琼. 磷锑钼蓝光度法测定矿石中的磷[J]. 云南化工, 2012, 0(5): 48-50 |
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| 作者姓名： | 王燕玲 吕丽琼 |
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| 作者单位： | [1]云南锡业股份公司质量监督部,云南个旧661000 [2]个旧市排水公司,云南个旧661000 |
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| 摘 要： | 研究了用磷锑钼蓝光度法测定矿石中微量磷的方法。试样经王水分解后,在硫酸介质中用盐酸-氢溴酸挥发排锡、砷、锑,调整硫酸浓度在0.2～0.3 mol/L,加混合显色液后,使磷形成"磷锑钼蓝"杂多酸络合物。试验证明:在50 mL显色液中含5～30μg的磷符合比尔定律,其λmax=700nm,表观摩尔吸光系数为ε=1.64×104,测定范围在10-3～10-1μg/L。
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| 关 键 词： | 矿石 磷 磷锑钼蓝光度法 |
Determination of Phosphorous-Phosphorus Antimony Molybdenum Blue Photometric Method |
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| WANG Yan-ling,LV Li-qiong. Determination of Phosphorous-Phosphorus Antimony Molybdenum Blue Photometric Method[J]. Yunnan Chemical Technology, 2012, 0(5): 48-50 |
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| Authors: | WANG Yan-ling LV Li-qiong |
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| Affiliation: | 1. Quality Supervision Department of Yunnan Tin Co. Ltd. , Gejiu 661000, China; 2. Gejiu Drainage Company, Gejiu 661000, China) |
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| Abstract: | A method was studied for the determination of trace phosphorus in ore by phosphorus antimony molybdenum blue photometric method. The text sample was decomposed by royal water, then volatiled of tin, arsenic, antimony by hydrochloric acid-hydrobromide in sulfuric acid medium. Adjusting the acidity from 0.2 to 0.3 mol/L and plusing mixed chromogenic reagent, make phosphorus to form phosphorus antimony molybdenum blue heteropolyacid complex. The text proved that 5 -30 ug contained phosphorus in 50mLchromogenic reagent corresponded Beer＇s law, with λmax = 700 nm, ε = 1.64 ×10^4, measuring range 10 -3 - 10 -1 ug/L. |
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| Keywords: | ore phosphorus phosphorus antimony molybdenum blue photometric method |
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