发明授权
- 专利标题： Measuring surfactant concentration in plating solutions
- 专利标题（中）： 测量电镀溶液中的表面活性剂浓度
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申请号： US109008申请日： 1987-10-16
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公开(公告)号： US4812210A公开(公告)日： 1989-03-14
- 发明人: William D. Bonivert , Joseph C. Farmer , John T. Hachman
- 申请人： William D. Bonivert , Joseph C. Farmer , John T. Hachman
- 申请人地址： DC Washington
- 专利权人： The United States Department of Energy
- 当前专利权人： The United States Department of Energy
- 当前专利权人地址： DC Washington
- 主分类号： G01N27/416
- IPC分类号： G01N27/416 ; G01N27/46
摘要：
An arrangement for measuring the concentration of surfactants in a electrolyte containing metal ions includes applying a DC bias voltage and a modulated voltage to a counter electrode. The phase angle between the modulated voltage and the current response to the modulated voltage at a working electrode is correlated to the surfactant concentration.
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