thermal analyzerIt is a sample pretreatment device in the gas chromatograph analysis and detection system. It mainly uses physical means to heat and adsorb the sample, so as to achieve the purpose of purifying the sample. So why pretreat the sample?

Sample pretreatment has two advantages: one is that the specified concentration can be reached after sample preparation through purification and crystallization; secondly, the impurities in the sample are removed to prevent impurities from affecting the accuracy of the sample test results, and even block the precision in the gas chromatography equipment Devices such as chromatographic columns, six-way valves, quantitative rings, etc., sample pretreatment is an essential link in gas chromatography detection and liquid chromatography analysis.

In the sample processing of the gas chromatograph, the working principle of the thermal analyzer is: inject the sample to be tested into the adsorption tube equipped with the adsorbent (the filler in the adsorption tube of the thermal analyzer should determine the appropriate adsorbent according to the nature of the sampled sample), in which the volatile components are adsorbed and eliminated, and the remaining sample in the adsorption tube is heated to desorb the collected volatile organic compounds, the sample to be tested enters a capillary gas chromatograph equipped with a flame ionization detector with an inert carrier gas for analysis.

Thermal analyzer has the advantages of convenient sampling, rapid inspection and accurate quantification, and is widely used in gas chromatography analysis system.

The products of Beijing Beitian Instrument Technology Co., Ltd. have been widely used in petrochemical industry, electric power supervision, quality supervision and inspection, environmental monitoring, scientific research institutes, colleges and universities, health and epidemic prevention, medicine, brewing, grain and oil and many other fields. It has a good social reputation. Customers are welcome to visit and buy!