With the increasing improvement of people's living standards, the nutrition, health and safety of food have become more rational and scientific. In recent years, an accurate analysis tool, liquid chromatography-mass spectrometry, has been used in food testing. . Liquid chromatography-mass spectrometry combines the high separation capabilities of liquid chromatography for complex matrix compounds with the unique selectivity, sensitivity, relative molecular mass and structural information of mass spectrometry. It has become an important part of the food industry in raw material screening and quality control in the production process. Powerful analytical and testing tools such as control and finished product quality testing have very broad prospects in food analysis and testing.
1. Detection of pesticide and veterinary drug residues in food
The analysis of pesticide and veterinary drug residues in food and agricultural products has very high requirements for sensitivity, reproducibility and selectivity, and often requires detection levels or even lower levels in complex matrices. Concentrations of trace residual substances. To meet the above requirements, in addition to good sample pretreatment, it is also necessary to select a high-performance and highly sensitive liquid chromatography mass spectrometer for detection and analysis.
2. Detection of prohibited substances and harmful additives in food
Excessive content of additives in food will cause varying degrees of harm to the human body and even threaten human life safety, so it is necessary to use methods that can quickly identify and An analysis and detection tool for accurately quantifying banned substances and harmful additives in food. Their measurement includes spectrophotometer, capillary electrophoresis, gas chromatograph, etc. Since the liquid chromatography mass spectrometer only needs simple pretreatment of the sample, it is suitable for small content, unsuitable for separation, and prone to occur during the separation process. The analysis and detection of changed or lost components has been widely used in the analysis and research of banned substances and harmful additives in food.
3. Detection of functional ingredients in health products
The analysis and detection tools for functional ingredients in health foods mainly include high performance liquid chromatography, gas chromatography and colorimeter, etc., but the results measured using these instruments are The functional components cannot be determined and cannot meet the needs of analysis and testing. When analyzing the functional ingredients of health food, the liquid chromatography mass spectrometer can simultaneously obtain rich information such as the compound's retention time, online UV spectrum, molecular weight and characteristic structural fragments. It is efficient, fast, accurate and highly sensitive. It has been widely used in the analysis and research of functional ingredients in health care products.
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