echemi logo
  • Product
  • Supplier
  • Inquiry
    Home > Agriculture News > Pesticide News > Shimadzu application: MDGC/GCMS method for the detection of organophosphorus pesticides in complex matrix samples

    Shimadzu application: MDGC/GCMS method for the detection of organophosphorus pesticides in complex matrix samples

    • Last Update: 2022-03-17
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit
    The problem of pesticide residues in vegetables is related to the health of the masses of people, and is receiving more and more attention
    In today's world, pesticide residue analysis is developing towards multi-residue and rapid analysis.
    To ensure the accuracy of high-throughput detection methods, strict pesticide residue confirmation techniques are required

    ???? At present, the Ministry of Agriculture's routine monitoring of multiple residues of organophosphorus pesticides in vegetables implements the agricultural standard NY/T761-2008 "Determination of Multi-residues of Organochlorine, Organophosphorus, Pyrethroid and Carbamate Pesticides in Vegetables and Fruits", Use GC/FPD to quickly detect vegetable organophosphorus pesticide residues.
    For samples that exceed the standard or are close to the limit value, use double-column and double FPD to re-test, and then use GCMS to determine if it still cannot be confirmed, so that the detection of pesticide residues in vegetables is faster and more accurate

    Green leafy vegetables, cabbage, melons, nightshade, beans, potato taro and root vegetables have almost no sample impurity peaks, and the determination of organophosphorus pesticides is not disturbed; cabbage vegetables (such as purple cabbage, cabbage and broccoli) Etc.
    ) There are significant impurity peaks in samples, and the determination of dichlorvos, methamidophos, phorate and chlorpyrifos methyl is often interfered; especially onion and garlic vegetables (such as garlic, onions, etc.
    ) have strong impurity peaks in samples, organic Phosphorus pesticides are multi-residue? The determination cannot be carried out

    ????Shimadzu multidimensional gas chromatography-mass spectrometer???? This article uses Shimadzu heart-cutting two-dimensional gas chromatography mass spectrometry MDGC/GCMS to analyze 29 kinds of organophosphorus pesticides in onion and garlic, which can effectively solve the problem.
    Background interference issues

    This article is an English version of an article which is originally in the Chinese language on and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to with relevant evidence.