Before using the ion chromatograph, it is necessary to carry out corresponding inspection work to ensure the stability of the equipment in the later use. The items to be inspected mainly include the following aspects:
1. Before use, carefully check whether there is any abnormality in each part of the ion chromatograph. If any abnormality is found, please deal with it immediately;
2. Before use, it is necessary to read the instruction manual of the relevant equipment carefully, and operate in strict accordance with the instruction manual. It is strictly forbidden for personnel without systematic training to operate the instrument;
3. If the oil volume is insufficient, it is necessary to add the fully filtered N32# hydraulic oil to the pump before it can work.
4. Before starting the pump, observe whether there are air bubbles in the pipeline from the mobile phase bottle to the pump, if there is, it should be eliminated.
After the system inspection of the ion chromatograph, the equipment needs to be used correctly, and the following points should be paid attention to when using it:
1. The filter head in the mobile phase bottle should always be below the liquid level to prevent the solution from being sucked dry.
2. Use an anion chromatographic column for detection, turn on the current knob when passing the mobile phase, adjust it to 90-100mA, and turn off the current knob after use.
3. Pay attention when the valve is moved during injection. It should not be too fast to avoid damage to the valve body, and it should not be too slow to avoid sample loss.
4. During the sampling process, the cleaning procedure should be strictly followed to reduce the influence of the previous sample residue on this test.
5. When cleaning the entire flow path with deionized water or mobile phase, high-flow cleaning can be used to shorten the cleaning time, but when the mobile phase is connected to the chromatographic column, the flow rate needs to be adjusted to the flow conditions of the chromatographic column.
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