| 砷锑钼蓝分光光度法快速测定水和废水中的微量砷 |
| 摘要点击 723 全文点击 731 投稿时间：1994-09-27 |
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| 中文关键词 砷 砷锑钼蓝分光光度法 废水 |
| 英文关键词 arsenic Qiu's Arsenic Analyzer arseno-antimono-molybdenum blue spectrophotometry surface water wastewater |
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| 中文摘要 |
| 研究了砷锑钼三元杂多酸的形成条件及其还原产物的光度性质。结果表明:显色体系呈大吸收位于865nm处,ε'(865)=2.1×104L·mol-1·cm-1。在室温下能稳定24h。砷量在0—40μg/10ml遵守比尔定律,r=0.9991。用丘氏定砷器使砷呈AsH3逸出分离。 |
| 英文摘要 |
| It was found that the colour producing products have a Soret band at 865 nm, an apparent molar absorptivity of 2.1×104, an over 24 hour stability at room temperature, a linearity range of 0—80 μg As in a volume of 10 ml and a correlation coefficient of 0.9990.The use of the Qiu's Arsenic Analyzer allows arsenic in water to be reduced as AsH3, giving off from water. None of Al, Mn, Zn, Cd, Fe, Co, Ni, Cu, Sn, Sb, Bi and S2- in a reasonable amount can interfere with the determination. This method has been applied to determining arsenic at a microgramme level in surface water and wastewater with satisfactory results. |
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