biostudies-literatureBatista Junior ACConselho Nacional de Desenvolvimento Cient?fico e Tecnol?gicoFunda??o de Amparo ? Pesquisa do Estado de Goi?sCoordena??o de Aperfei?oamento de Pessoal de N?vel Superior201-208https://www.ebi.ac.uk/biostudies/studies/S-EPMC11697339biostudies-literatureUnknown36(1)This study introduces an alternative strategy for evaluating antiparasitic persistence compounds in cattle hair by Direct Analysis in Real Time Mass Spectrometry (DART-MS). The developed DART-MS method aimed to determine fenthion, chlorpyrifos, and cypermethrin in cattle hair samples. DART-MS analyses were performed in positive ion mode, and parameters related to the DART source were evaluated. The analytical performance demonstrated the efficiency of the optimized DART-MS method for fenthion, chlorpyrifos, and cypermethrin quantification in the evaluated samples, meeting criteria for precision, accuracy and limits of detection. Overall, the DART-MS method provided a fast and efficient analysis for determination of antiparasitic agents in cattle hair, which contributes to the evaluation ofJournal of the American Society for Mass SpectrometryAssessing Antiparasitic Compounds Persistence in Cattle Hair by DART-MS.PMC11697339001447927/2014-0201810267001519Rocha YASouza GGMaciel LILLopes WDZBatista Junior ACBotelho AFMChaves ARChalom MYVaz BGfalseAssessing Antiparasitic Compounds Persistence in Cattle Hair by DART-MS.This study introduces an alternative strategy for evaluating antiparasitic persistence compounds in cattle hair by Direct Analysis in Real Time Mass Spectrometry (DART-MS). The developed DART-MS method aimed to determine fenthion, chlorpyrifos, and cypermethrin in cattle hair samples. DART-MS analyses were performed in positive ion mode, and parameters related to the DART source were evaluated. The analytical performance demonstrated the efficiency of the optimized DART-MS method for fenthion, chlorpyrifos, and cypermethrin quantification in the evaluated samples, meeting criteria for precision, accuracy and limits of detection. Overall, the DART-MS method provided a fast and efficient analysis for determination of antiparasitic agents in cattle hair, which contributes to the evaluation of2025-01-01T00:00:00Z2025 Jan2025-04-18T13:57:01.197Z2025-04-06T23:49:19.75ZS-EPMC116973393960123310.1021/jasms.4c00422