Waters Pesticide Screening Platform Helps Food Safety Defence

In order to ensure the quality of agricultural products, the Ministry of Agriculture and the National Health and Family Planning Commission jointly issued the National Food Safety Standard “Maximum Residue Limits of Pesticides in Food” (GB2763-2014), which was implemented on August 1 this year. The maximum residue limit indicator for pesticides in China's food will increase from the current 2,293 to 3,650, with an increase of 1,357. Among them, the types of food and agricultural products have been expanded, and the pesticide residue limit values ​​of primary processed products such as juice, dried fruit and dried fruits have been formulated for the first time, which basically covers the types of foods frequently consumed by the people; it covers the varieties of pesticides commonly used in agricultural production; The limited standard for fresh produce such as fruits; the new standard is basically in line with international standards. In the new standard, the International Codex Alimentarius Commission has established 1999 standards. Among them, 1811 national standards are equivalent to or stricter than the International Codex Alimentarius standards, accounting for 90.6%. At present, the detection methods of pesticide residues mainly include gas chromatography, high performance liquid chromatography, etc., and in the face of higher and higher standards, there is a higher requirement for the analysis method of pesticide residues. Waters®'s advanced technologies such as UNIFI pesticide screening application solutions and atmospheric pressure gas chromatography-mass spectrometry can effectively address the challenges of pesticide residue detection, and its advanced ultra-high performance liquid chromatography technology can provide more High resolution, analysis speed, and can make up for the shortcomings of gas chromatography.

The quality of agricultural products, especially pesticide residues in vegetables and fruits, has become the focus of public attention. In terms of pesticide use, regulations specify the maximum residue limit (MRL) in foods, which relies on highly sensitive, highly selective and reliable analytical techniques for detection. Due to the low detection limit, the wide variety of pesticides and the different chemical classes, it is very difficult to analyze multi-residue pesticides. More and more residues are waiting to be detected. Therefore, effective analytical tools have become a top priority. The UNIFI-based Waters Refuse Screening Application Solution is tailored to minimize false positive and false negative results and is ideally suited for current analytical challenges, using the rich and flexible pesticide science library features and flexibility. Report template for accurate reporting of pesticide residues, streamlining workflow and increasing the speed of analysis of complex matrix samples with ease of use, sensitivity, stability, reproducibility and throughput. Not only comply with regulatory limits, but also below regulatory limits.

In addition, in the analysis of pesticide residues, gas chromatography has become one of the commonly used pesticide residue detection methods because of its high resolution, fast analysis speed, good selectivity, low sample consumption and high detection sensitivity. Using Waters atmospheric pressure gas chromatography ionization source in combination with a tandem quadrupole mass spectrometer, routine detection of 142 pesticide residues in a variety of fruit and vegetable matrices allows for the screening of multiple samples from a single analysis pesticide.

In recent years, with the rapid development of liquid chromatography, it has also played a huge role in the field of food safety. It is increasingly used in pesticide residue analysis because it is not limited by sample volatility. Especially for unstable and non-volatile pesticides that are difficult to analyze by gas chromatography, Waters Ultra Performance Liquid Chromatography provides faster and more efficient separations than high performance liquid chromatography.

Waters' range of food safety solutions meet stringent standards and provide effective protection against food safety and public health.

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