Liquid feeding system for liquid chromatography
A liquid chromatograph and liquid delivery technology, which is applied in the field of liquid delivery system, can solve problems such as adverse effects on analysis results, user loss, mobile phase flow confusion, etc., and achieve the effect of high-precision liquid delivery.
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[0023] Hereinafter, an embodiment of the liquid delivery system for a liquid chromatograph of the present invention will be described with reference to the drawings.
[0024] Such as figure 1 As shown, the liquid chromatograph includes a liquid delivery system 2 , a sample injection part 4 , a separation column 6 , a detector 8 and a control device 10 .
[0025] The liquid delivery system 2 of the embodiment includes two liquid delivery pumps 14A and 14B, and the two liquid delivery pumps 14A and 14B operate independently of each other, and deliver the mobile phase in the common flow path 12 . A pressure sensor 16A and a pressure sensor 16B are provided at the rear stage of each liquid-feeding pump 14A and 14B, and the liquid-feeding pressure of the mobile phase flowing in the channel 12 is detected by the pressure sensor 16A and the pressure sensor 16B. In addition, although two pressure sensors 16A and 16B are provided here, only any one may be provided. The solvents sent ...
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