Food grade carbon dioxide analysis chromatograph

With the increasing improvement of people's living standards, the application fields of food grade carbon dioxide are constantly expanding, mainly used in the beverage, beer, tobacco, and preservation industries. The demand for food grade carbon dioxide will significantly increase, and the market prospects are very broad. Benzene is a harmful substance that can easily cause leukemia. The trace amount of benzene in food grade carbon dioxide meets the national standard of ≤ 0.02 × 10-6 (V/V). When analyzed directly using Agilent's 6890 gas chromatograph, the minimum detection limit is 0.01 × 10-6 (V/V), which is very difficult and cannot meet the minimum detection limit requirement of 1/3-1/9 specified in analytical chemistry. Shanghai Kechuang Chromatography Instrument Co., Ltd. has been committed to the research of food grade carbon dioxide chromatographic analysis for many years, and has launched a new technology for enriching and concentrating trace benzene in food grade carbon dioxide to meet quantitative requirements. It easily meets the detection limit requirement of 0.001 × 10-6 (V/V), and the standard deviation of quantitative repeatability is within 3%. On the same instrument, total hydrocarbons, non methane total hydrocarbons, methane and other indicators can also be measured, with detection limits and accuracy meeting the requirements as much as possible.