华南农业大学学报
華南農業大學學報
화남농업대학학보
JOURNAL OF SOUTH CHINA AGRICULTURAL UNIVERSITY
2014年
5期
14-18
,共5页
李维铖%姬长云%张静洁%程汉奎%邓超%钟佳莲%邓衔柏%沈祥广
李維鋮%姬長雲%張靜潔%程漢奎%鄧超%鐘佳蓮%鄧銜柏%瀋祥廣
리유성%희장운%장정길%정한규%산초%종가련%산함백%침상엄
高效液相色谱法%氟喹诺酮类药物%鸡肉%药物残留%方法优化
高效液相色譜法%氟喹諾酮類藥物%鷄肉%藥物殘留%方法優化
고효액상색보법%불규낙동류약물%계육%약물잔류%방법우화
high performance liquid chromatography%fluoroquinolones%chicken muscle%residue%opti-mization
【目的】建立一种用高效液相色谱法快速检测鸡肉组织中5种氟喹诺酮类药物(诺氟沙星、环丙沙星、达氟沙星、恩诺沙星、沙拉沙星)残留量的方法.【方法】样品的提取液由乙腈与三氯乙酸溶液(质量分数2%)按体积比1∶3的比例混合而成,流动相为乙腈-磷酸/三乙胺溶液(0.02 mol· L-1),荧光激发波长280 nm,发射波长450 nm.【结果和结论】添加低、中、高浓度水平时,回收率为84.71%~99.66%,变异系数为0.20%~4.34%.该方法检测诺氟沙星、环丙沙星和恩诺沙星的残留定量限为10μg · kg-1,达氟沙星的残留定量限为2μg · kg-1,沙拉沙星的残留定量限为20μg · kg-1.此法操作简单、实用,灵敏度高,可以满足鸡肉食品中氟喹诺酮类药物残留检测的需要.
【目的】建立一種用高效液相色譜法快速檢測鷄肉組織中5種氟喹諾酮類藥物(諾氟沙星、環丙沙星、達氟沙星、恩諾沙星、沙拉沙星)殘留量的方法.【方法】樣品的提取液由乙腈與三氯乙痠溶液(質量分數2%)按體積比1∶3的比例混閤而成,流動相為乙腈-燐痠/三乙胺溶液(0.02 mol· L-1),熒光激髮波長280 nm,髮射波長450 nm.【結果和結論】添加低、中、高濃度水平時,迴收率為84.71%~99.66%,變異繫數為0.20%~4.34%.該方法檢測諾氟沙星、環丙沙星和恩諾沙星的殘留定量限為10μg · kg-1,達氟沙星的殘留定量限為2μg · kg-1,沙拉沙星的殘留定量限為20μg · kg-1.此法操作簡單、實用,靈敏度高,可以滿足鷄肉食品中氟喹諾酮類藥物殘留檢測的需要.
【목적】건립일충용고효액상색보법쾌속검측계육조직중5충불규낙동류약물(낙불사성、배병사성、체불사성、은낙사성、사랍사성)잔류량적방법.【방법】양품적제취액유을정여삼록을산용액(질량분수2%)안체적비1∶3적비례혼합이성,류동상위을정-린산/삼을알용액(0.02 mol· L-1),형광격발파장280 nm,발사파장450 nm.【결과화결론】첨가저、중、고농도수평시,회수솔위84.71%~99.66%,변이계수위0.20%~4.34%.해방법검측낙불사성、배병사성화은낙사성적잔류정량한위10μg · kg-1,체불사성적잔류정량한위2μg · kg-1,사랍사성적잔류정량한위20μg · kg-1.차법조작간단、실용,령민도고,가이만족계육식품중불규낙동류약물잔류검측적수요.
Objective A method for rapid determination of five fluoroquinolones ( norfloxacin, ciprofloxa-cin, danofloxacin, enrofloxacin, sarafloxacin) residues in chicken muscle using high performance liquid chromatography ( HPLC) was established .[Method] The extracting solution of the chicken samples in-cluded a mixture of acetonitrile and trichloroacetic acid ( the mass fraction of 2%) .HPLC mobile phase consisted of acetonitrile and phosphate buffer (0.02 mol· L-1) with triethy lamine.Fluorometric excita-tion wavelength was 280 nm, and emission wavelength was 450 nm.[Result and conclusion] The recov-eries of 5 fluoroquinolones were 84.71%-99.66%at three spiked level(low, medium, high), and the relative standard deviations ( RSD) were 0.20%-4.34%.The limit of quantiation ( LOQ) of norfloxa-cin, ciprofloxacin and enrofloxacin was 10 μg· kg -1 .The LOQ of danofloxacin was 2 μg· kg -1 , and the sarafloxacin was 20μg· kg -1 .The method is simple , practical , and sensitive .It can meet the needs of determination of fluoroquinolones in chicken muscle .