| 摘要 |
PROBLEM TO BE SOLVED: To provide a gradient device having a small size enough to be loaded on a micro-fluid device, and capable of supplying stably an eluant subjected to highly-accurate gradient change, a liquid chromatograph using the gradient device, an analysis detector and a microchip. SOLUTION: This gradient device has the first passage, the second passage and the third passage elongated respectively in the prescribed directions, the fourth passages to the number of n connected to the first passage and thinner than the first passage, and the fifth passages to the number of n connected to the second passage and thinner than the second passage. The liquid chromatograph using the gradient device, the analysis detector and the microchip are also provided. COPYRIGHT: (C)2006,JPO&NCIPI
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