{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T03:01:10Z","timestamp":1780542070332,"version":"3.54.1"},"reference-count":34,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2017,2,7]],"date-time":"2017-02-07T00:00:00Z","timestamp":1486425600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100010042","name":"Special Fund for Agro-Scientific Research in the Public Interest","doi-asserted-by":"crossref","award":["201503108"],"award-info":[{"award-number":["201503108"]}],"id":[{"id":"10.13039\/501100010042","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Separation Science"],"published-print":{"date-parts":[[2017,3]]},"abstract":"<jats:p>An efficient sample extraction and clean\u2010up method was developed for simultaneous determination of five amide herbicides (alachlor, acetochlor, propisochlor, metazachlor, and butachlor) in fish samples. The protocol consisted of ultrasound\u2010assisted solvent extraction and solid\u2010phase extraction clean\u2010up. In detail, aliquots of homogenized fish flesh were thoroughly mixed with 20 mL of <jats:italic>n<\/jats:italic>\u2010hexane and then extracted with ultrasonication for 40 min. Each sample was centrifuged and the supernatant was collected for the subsequent clean\u2010up. For the sample preparation, the above supernatant was processed with a C<jats:sub>18<\/jats:sub> column with 3 mL of dichloromethane\/<jats:italic>n<\/jats:italic>\u2010hexane (1:1, v\/v) as the eluant. Then the samples were analyzed by gas chromatography with electron capture detection. The correlation coefficients of the five calibration curves were 0.9976\u20130.9998 (<jats:italic>n<\/jats:italic> = 3). The limits of detection (S\/N = 3, <jats:italic>n<\/jats:italic> = 11) and limits of quantification (S\/N = 10, <jats:italic>n<\/jats:italic> = 11) were 0.19\u20130.42 and 0.63\u20131.39 \u03bcg\/kg, respectively. The recoveries of this method were 71.2\u201392.6% with good precision (&lt;4.7% relative standard deviations, <jats:italic>n<\/jats:italic> = 6). The developed method was successfully applied to monitor the five amide herbicides in fish samples collected from different cities.<\/jats:p>","DOI":"10.1002\/jssc.201601092","type":"journal-article","created":{"date-parts":[[2017,1,3]],"date-time":"2017-01-03T07:57:05Z","timestamp":1483430225000},"page":"1142-1149","source":"Crossref","is-referenced-by-count":32,"title":["Ultrasound\u2010assisted extraction and solid\u2010phase extraction for the simultaneous determination of five amide herbicides in fish samples by gas chromatography with electron capture detection"],"prefix":"10.1002","volume":"40","author":[{"given":"Zhipeng","family":"Qu","sequence":"first","affiliation":[{"name":"College of Chemistry and Chemical Engineering Central South University  Changsha Hunan P.R. 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