| 活性炭动态交换分离富集光度法测定水和废水中痕量铍 |
| 摘要点击 732 全文点击 883 投稿时间：1987-08-18 |
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| 中文摘要 |
| 铍及其化合物对人类的毒性极大,并且有致癌作用。目前已成为人们较关注的环境污染物。随着铍的利用和环境保护的发展,急需解决铍的富集和测定的高灵敏度方法。文献[1]利用活性炭静态吸附铍-铬天箐S(CAS)-氯化十六烷基吡啶(CPC)三元络合物分离富集铍,且利用此三元络合物光度法测定铍,惜此法操作繁琐,且吸附回收率也不太稳定。本文在此基础上,改用活性炭本文在此基础上,改用活性炭动态吸附分离富集被,操作简便,适应性广,回收率也较好。用于水样中被的测定,结果良好。 |
| 英文摘要 |
| In this paper the optimum conditions of colour reaction of Be-CAS-CPC and adsorption concentration by activated carbon has been studied. In the buffer solution of urotropine pH 5.0. The adsorption maximum of the complex is near 605nm. Beer's law is obeyed for 0—0.70g Be/25ml (2cm cell) ranges. It is applied to determine the trace Be in Water by spectrophotometric method, which is simple exact and rapid. |
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