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(1) Chromatography technology
Gas chromatography is currently the most widely used analytical method for separating complex mixtures and can perform multi-residue analysis
Gas-mass spectrometry (GC-MS), the GC part is used to separate multi-component mixed pollutants, and the MS part analyzes each component
HPLC has the characteristics of high efficiency, high sensitivity, wide application range, fast analysis speed, and fast carrier fluid flow rate.
Liquid Mass Spectrometry (LC-MS) makes up for the shortcomings of MS, and has separation, qualitative and quantitative analysis functions, and has become a very attractive analysis method in pesticide analysis
High performance liquid chromatography is often combined with other technologies to achieve good detection results.
(2) Capillary electrophoresis
Compared with high performance liquid chromatography, capillary electrophoresis has high separation efficiency, short time (generally no more than 30min), low detection limit, low sample consumption (the required sample is nanoscale), and it has a wide range of applications
(3) Biological detection technology
The advantages of immunoassay are strong specificity, high sensitivity, large analysis volume, convenience and low cost, and it can be applied to the rapid detection of a large number of samples on site
The biosensor overcomes the shortcomings of complex sample pretreatment steps, long analysis time, large equipment, and inability to detect on-site in chemical methods such as gas and liquid phases.
In recent years, with the development of the fruit and vegetable storage industry, the types of fresh-keeping preservatives used on fruits and vegetables have become increasingly diversified, which requires the detection of their residues to keep up with the pace of development of fresh-keeping preservatives to ensure the safe use of fruit and vegetable products.
Related Links: Research Progress of Fruit and Vegetable Antiseptic Preservatives and Their Residue Detection Methods
