发明名称 |
DEVICE FOR OPTICAL AND ELECTROCHEMICAL MEASUREMENTS IN MICROLITER SIZE SAMPLES |
摘要 |
A small liquid sample (24) to be tested is contained within an annulus (18) on the upper surface (14) of a substrate (12). In one embodiment, a reagent diffuses into the sample through a membrane (28) in a junction hole (26), the junction hole connecting upper (14) and lower (16) surfaces of the substrates. Optical measuring equipment (70, 72) detects a measurable change in an optical property of the sample. In an alternate embodiment, a flow of gas (30) directed at a small liquid sample (24), causes the sample to flow in a controlled manner over the surface of an electrode (20), disposed on the substrate surface (14). In another alternate enbodiment, a spacial averaging electrode (20) is disposed in a non-homogeneous sample (24). Highly reproducible and accurate hydrodynamic electrochemical studies and analyses of microliter size samples are thus achievable, without the need for moving mechanical parts. |
申请公布号 |
CA2266930(A1) |
申请公布日期 |
1998.04.02 |
申请号 |
CA19972266930 |
申请日期 |
1997.09.24 |
申请人 |
CASE WESTERN RESERVE UNIVERSITY |
发明人 |
GRATZL, MIKLOS;CSEREY, ANDREA;HUI, KWONG YUE |
分类号 |
B01F13/00;B01F13/02;B01L3/00;G01N21/79;G01N27/403;G01N35/00;G01N35/10;(IPC1-7):G01N1/30;G01N31/16;G01N27/26;C12M1/34;C12M1/40;G01N27/44 |
主分类号 |
B01F13/00 |
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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