建立了鸡蛋中磺胺嘧啶和磺胺二甲嘧啶残留量的聚合物整体柱微萃取和高效液相色谱检测方法.以聚(甲基丙烯酸-乙二醇二甲基丙烯酸酯)毛细管整体柱作为萃取装置.为了得到较高的萃取效率,优化了影响萃取效率的参数(萃取流速、萃取体积、样品基质pH值).样品经过匀浆、乙醇提取、磷酸盐缓冲溶液稀释、离心等步骤后直接进行萃取.鸡蛋中磺胺嘧啶和磺胺二甲嘧啶的检出限分别为11.2 ng/g和8.8 ng/g,在50~5 000 ng/g的浓度范围内具有良好的线性关系.加标回收率大于65%,日内、日间测定的相对标准偏差不高于8.2%.结果表明,方法简单、快速、灵敏度高,适用于鸡蛋中磺胺嘧啶和磺胺二甲嘧啶的常规分析.
参考文献
[1] | Dong Dan,Shao Bing,Wu Yongning,Wu Guohua,Xue Ying,Xu Shukun,Tu Xiaoming,Zhang Yanfeng.Chinese Journal of Chromatography (董丹,邵兵,吴永宁,吴国华,薛颖,徐淑坤,涂晓明,张彦锋.色谱),2005,23(4):404 |
[2] | Announcement by Ministry of Agriculture of People's Republic of China.Chinese Journal of Veterinary Drug (农业部公告.中国兽药杂志),2003,37(4):15 |
[3] | Cavaliere C,Curini R,Di Corcia A,Nazzari M,Samperi R.J Agric Food Chem,2003,51:558 |
[4] | Atta A H,El-Zeini S A.Food Control,2001,12:269 |
[5] | Heller D N,Ngoh M A,Donoghue D,Podhorniak L,Righter H,Thomas M H.J Chromatogr B,2002,774:39 |
[6] | Bogialli S,Curini R,Di Corcia A,Nazzari M,Polci M L.J Agric Food Chem,2003,51:4225 |
[7] | Announcement by Ministry of Agriculture of People's Republic of China.Chinese Journal of Veterinary Drug (农业部公告.中国兽药杂志),2003,37(6):6 |
[8] | Furusawa N.Fresenius J Anal Chem,1999,364:270 |
[9] | Furusawa N.J AOAC Int,2002,85:848 |
[10] | Zhang M,Wei F,Zhang Y F,Nie J,Feng Y Q.J Chromatogr A,2006,1102:294 |
[11] | Eisert R,Pawliszyn J.Anal Chem,1997,69:3140 |
[12] | Fan Y,Feng Y Q,Da S L,Shi Z G.Anal Chim Acta,2004,523:251 |
[13] | Saito Y,Jinno K.Chromatography,2001,22:151 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%