Daily maintenance of gas chromatograph
Whether it is a domestic chromatograph or an imported chromatograph, we must do a good job of maintaining the relevant work in daily work. The instrument can be maintained well to improve the integrity and utilization of the instrument and reduce the maintenance of the instrument during its life cycle. Expenses and other abnormal expenses can reduce the use cost of the instrument to a certain extent and extend the lifespan of the instrument.
When the chromatograph is used infrequently, it is not only necessary to perform regular cleaning work but also to add regular liquids to the instrument. For example, methanol and other compatible liquids need to be sealed. When used again, rinse with fresh water for several minutes and then connect the detector to prevent the sealed liquid from flowing into the flow cell.
When the chromatograph is re-installed for use, it is possible to remove a little of the column tube, then use the same type to fill and fix, and then install the filter, tighten the instrument's connector and close the screw at both ends. There are many types of liquid chromatography columns. Different analytes should be selected for different mobile phases, separation columns and operating wavelengths to avoid unnecessary problems.
In the process of using the instrument, when measuring multiple injections, it is necessary to pay attention to the injection of high-concentration measurement materials or measurement materials with relatively high viscosity. These substances are likely to contaminate the valve body. Therefore, after use, it must be carefully cleaned to keep the valve body clean. If the valve body is heavily contaminated or there is clogging of the sundries, the valve body must be disassembled, remove the relevant parts and put it into the alcohol solution for cleaning, and then clean the through hole with clean gas after ultrasonic cleaning and then dry it. Recombination is complete.
In summary, it is only in the use of the chromatograph to do a good job of maintenance, maintenance, it can provide us with greater convenience. For more information on chromatographs, please contact Shanghai Rui Analysis Scientific Instruments Co., Ltd.
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