thermal analyzerSelect a glass test tube with a catalyst carrier, capture the organic matter you are interested in, and then introduce it into the liquid chromatograph. Separate and measure the organic matter according to the liquid chromatograph. The pyrolysis sample preparation technology is to put the adsorption tube of the solid sample or the sample to be tested In the thermal desorption device, it is immediately connected to the chromatograph (also a separately installed model and specification), and the carrier gas enters the injection port of the chromatograph according to the thermal desorption device. When the temperature of the thermal desorption device increases, volatile multi-components are released from the solid sample or catalyst carrier, and enter the gas chromatograph system software with the carrier gas for analysis and measurement. Therefore, the pyrolytic inhalation sample can be regarded as a purge-collection injection Part.

The thermal analyzer can be a separate thermal desorption instrument that is not connected to the chromatograph, or it can be desorbed by the heating device of the collection pipe of the purge-collection sampler. In this case, the sample sucked by the pyrolysis is a necessary and sufficient condition for the purge-collection sampling. It can also be installed immediately at the inlet of the chromatograph, and then it can become a necessary and sufficient condition for the pyrolysis sampler. At present, pyrolysis inhalation technology has been widely used in biological science, industrial production, agriculture and animal husbandry, environmental protection, pharmaceutical industry, Cigarette, culture and education, petrochemical industry, clinical pharmacology, food, electronic devices and many other industries.

The thermal analyzer is a sample pretreatment device in the gas chromatograph analysis and detection system. It mainly uses physical methods to heat and adsorb the sample, so as to purify the sample. Through purification, crystallization and preparation, the sample can reach the concentration; it can also remove impurities in the sample, prevent impurities from affecting the accuracy of the sample test results, and even block the precision devices in the gas chromatography equipment, such as chromatographic columns, six-way valves, and quantitative Loop, etc., sample pretreatment is an indispensable link in gas chromatography detection and liquid chromatography analysis.