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Application of homogenizer in pesticide detection
In recent years, due to the neglect of the correct and rational use of pesticides in agricultural production, pesticide pollution problems often occur, and the phenomenon of excessive pesticide residues is quite serious, and it is increasing year by year. With the increasing emphasis on the safety and quality of agricultural products at home and abroad, pesticide residues have become important indicators in agricultural product safety indicators.
In recent years, pesticide residues have caused human and livestock poisoning incidents, especially pesticide residues in fruits and vegetable foods. To protect people's health, to effectively control the use of pesticides in agricultural production and to carry out their residues. It is very necessary to monitor and vigorously carry out research on pesticide residue detection technology, especially related pretreatment technology. Pesticide residue pretreatment technology is the key to the analysis and detection of pesticide residues. Pretreatment technology determines the accuracy of the analysis results to a large extent. Due to the large number of samples, it is necessary to detect trace complex components in complex matrices, and the analyte content is getting lower and lower. It is urgent to carry out other impurities in the pretreatment process and make the process simple and easy. Operation, so carrying out research in this area is of great significance.
The pesticide residue detection steps mainly include sampling, sample preservation, pretreatment (pulverization, extraction/extraction, purification, concentration, etc.), qualitative and quantitative analysis of the instrument, processing and analysis of the test results. The subsequent steps in the pre-treatment process of agricultural products are carried out after pulverization, so the first step of the pulverization treatment is particularly important, and the quality of the pulverization determines the success or failure of the test results. VELP of Italy has introduced the OV5 homogenizer. This homogenizer is suitable for the dispersion, homogenization and mixing of biological tissues, medicines, cosmetics and foods. The maximum stirring speed can reach 30,000 rpm, which can crush agricultural products and carry out subsequent inspection work. The OV5 homogenizer can be equipped with different rotors and stators on one shaft, while the shaft consists of stainless steel and Teflon seals that can withstand high-intensity air pressure and can be easily and quickly connected to the OV5 homogenizer via a spring hook, a single The shaft can be combined with different rotors and stators to meet the needs of special inspections. The actual construction of the OV5 homogenizer rotor and stator is inlaid in an open stationary stator by a high-speed rotor with sharp blades. The sample is comminuted by the high speed operation of the rotor before the sample is separated. The OV5 Homogenizer helps you achieve high crush quality and safety for your follow-up inspections.