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The sample was extracted using acetonitrile\/1% acetic acid and a combination of magnesium sulfate and sodium acetate salts. The sample was purified using multiwalled carbon nanotubes as sorbent via a dispersive\u2010solid\u2010phase extraction procedure. Matrix\u2010matched calibration (seven\u2010point) provided good linearity with coefficient of determination (<jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup>) \u22650.99 for each product. The limits of detection and quantification (LOQs) ranged between 0.0003\u20130.03 and 0.001\u20130.1 mg\/kg, respectively. Method validation was carried out after spiking the target standard to blank matrices at the concentration levels of LOQ, 2\u2009\u00d7\u2009LOQ, and 10\u2009\u00d7\u2009LOQ with three replicates for each. The average recoveries were between 74 and 104%, with relative standard deviations \u22649.68, which were within the acceptable range designated by the international organizations. The developed method was successfully applied for monitoring market samples collected throughout the Korean Peninsula, and none of the samples tested positive for the target analytes. It has therefore been shown that dehydration and acidification were effective to extract spinosad from animal\u2010derived products.<\/jats:p>","DOI":"10.1002\/bmc.5007","type":"journal-article","created":{"date-parts":[[2020,10,17]],"date-time":"2020-10-17T04:00:36Z","timestamp":1602907236000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Quantification of spinosyn A and spinosyn D in animal\u2010derived products using multiwalled carbon nanotubes coupled with LC\u2013MS\/MS for analysis"],"prefix":"10.1002","volume":"35","author":[{"given":"Md.Musfiqur","family":"Rahman","sequence":"first","affiliation":[{"name":"Natural Products Chemistry Laboratory Chonnam National University  Gwangju Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6596-7907","authenticated-orcid":false,"given":"A. 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