发明名称 |
Apparatus and method for measuring concentration of cadmium contained in refined liquid for zinc electrolysis |
摘要 |
PURPOSE:To measure and check the concentration of Cd lower than an allowable level in a refined liquid quickly with high accuracy by separating the Cd and coloring through the use of a coloring agent and then measuring the absorbance by means of a spectrophotometer. CONSTITUTION:A sample solution is fed, along with a complex forming liquid, to a mixer 6 where an iodine complex of Cd is formed. It is then introduced to an ion-exchange resin column 10 and adsorbed by the ion-exchange resin phase. An eluate is then introduced by an eluate injection pump 8 into the column 10 where the adsorbed Cs ions are eluted into the eluate and fed to a mixer 15. A mixture liquid fed by means of a mixture liquid injection pump 12 is mixed thoroughly with a coloring liquid fed by means of a coloring liquid injection pump 14 and then introduced to a reactor 16 where a complex of Cd and the coloring agent is produced. The eluate develops a color stably and the colored liquid is introduced to a detector 17 for measuring the absorbance of the complex of Cd and coloring agent at a specified absorption wavelength and then the concentration of Cd is determined using a previously prepared working curve. |
申请公布号 |
AU7892794(A) |
申请公布日期 |
1995.05.25 |
申请号 |
AU19940078927 |
申请日期 |
1994.11.17 |
申请人 |
MITSUBISHI MATERIALS CORPORATION |
发明人 |
YUTAKA HAYASHIBE;YASUMASA SAYAMA |
分类号 |
G01N31/00;C25C;C25C1/16;C25C7/06;G01N;G01N1/10;G01N21/77;G01N21/78;G01N30/00 |
主分类号 |
G01N31/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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