Urgent: the high performance liquid chromatography solvent filter is blocked by the water phase filter when filtering Methanol. how to solve it? As shown in Figure 1, the high-performance liquid chromatography is composed of a solution Reservoir, a high-pressure pump, a sample feeding system, a chromatography separation column, and a vacuum filter to filter both particles and remove bubbles, very (2) the composition of the solvent should be gradually changed, especially to buy one again, or there is another way. Soak with acetone or alcohol, usually soak the water filter membrane in an hour, blow it several times in reverse phase, replace it or soak it for a long time, and blow it several times after soaking, it's almost the same to repeat it a few times. when the solvent is still clarified after soaking with acetone or alcohol, it proves that it is almost the same. Note this kind of thing, the bubble is not clean and hurts the column. The filter membrane also has a dual-purpose organic system of water system
How to choose the automatic constant pressure water supply device? You can determine the specific model according to the specific parameters of the site. Xinxiang Jiahang can help you, thank you! Guangzhou is far higher than the series of automatic constant pressure water supply devices. it also needs to provide the specific conditions of the parameter items.