About GC troubleshooting

Release time:

2018-10-09 14:33

Source:

GC is often used by us because residual solvents are a must-test item, and many raw materials need to be detected by GC.

Generally, if it is found to be abnormal in the experiment, it can usually be checked by several aspects such as gas path, circuit, and detector.

Here are some experiences with GC failures, shared with you:

1. Failure of the gas path: the gas input is not normal, the gas type is not correct or the purity is insufficient, the gas path is leaked, the gas path is blocked, the gas path is polluted, the gas path component is faulty, the flow rate is improperly set, the column problem is, etc.;

2. Partial failure of the host circuit: abnormal startup or initialization, partial failure of temperature control, faulty keyboard or display part, abnormal opening and closing of the switch, improper setting of range attenuation, other functional faults, etc.

3. The detector output signal is abnormal: no signal output, zero offset of the output signal, unstable output signal, and incorrect value of the input signal;

4. Other faults: abnormal gas source, abnormal grid voltage, abnormal secondary instrument, mechanical fault, etc.

More information

Storage of chemical laboratory reagents

Solid reagents are typically stored in easy-to-access jars, and liquid reagents are stored in vials.

Chemical laboratory reagent specifications

Excellent grade pure reagent, also known as guarantee reagent, with the lowest impurity content and highest purity

Laboratory glassware washing

Chemical laboratories often use a variety of glass instruments and porcelain. These instruments are clean or not

Glass instrument drying method

An electric oven with a blower is generally used. The oven temperature is maintained between 100-120 degrees. Blasting can speed up the drying of the instrument.

Drying of laboratory glassware

In chemical experiments, it is often necessary to use a dry instrument, so after the instrument is washed, it should be dried. Dry the instrument beforehand to avoid drying when it is used.

Yangzhou guangning machinery glass co. LTD

Contact: Zeng Chun
Telephone:13805271985 13905276273
Fax: 0514-87239585
E-mail：yzgnqhb@163.com GJ8607@sina.com
Address: 129 Jiangyang East Road, Yangzhou City, Jiangsu Province

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