发明名称 |
Method and apparatus for determining zeta potential using alternating current electric field and t channel |
摘要 |
Provided is a method for determining a zeta potential generated between a solid wall and a solution. The method includes (a) injecting an electrolyte solution into a first inlet of a T channel, which is provided with first and second inlet electrodes and a grounded outlet electrode, and a mixed solution of the electrolyte solution and a fluorescent dye into a second channel of the T channel and maintaining a steady-state of the two solutions; (b) applying a direct current electric field from the first and second electrodes to the outlet electrode to form an interface between the electrolyte solution and the mixed solution; (c) applying an alternating current electric field from one of the two inlet electrodes to the outlet electrode to oscillate the interface; and (d) measuring an amplitude of oscillation of the interface and determining the zeta potential from the standard relationship between the zeta potential and the amplitude. <IMAGE> |
申请公布号 |
EP1464956(A3) |
申请公布日期 |
2005.02.09 |
申请号 |
EP20030026144 |
申请日期 |
2003.11.13 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
CHO, YOON-KYOUNG;SHIN, SANG-MIN;KANG, IN-SEOK;LIM, GEUN-BAE |
分类号 |
G01N21/64;B01F13/00;B01L3/00;G01N13/00;G01N27/26;G01N27/447;G01N37/00;(IPC1-7):G01N27/447 |
主分类号 |
G01N21/64 |
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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