干旱区生态环境知识资源中心(Arid): 固相萃取-液质联用法测定食品中两种苯氧乙酸类除草剂含量

Arid

	固相萃取-液质联用法测定食品中两种苯氧乙酸类除草剂含量
其他题名	Determination of two kinds of phenoxy acid herbicides in foods by solid phase extraction and high performance liquid chromatography-mass spectrum
	刘贵花 1; 韩德满 2; 唐守万 2; 潘富友 2; 闫瑞强 2
来源期刊	应用化工
ISSN	1671-3206
出版年	2011
卷号	40 期号:8 页码:1462-1465
中文摘要	建立了固相萃取-液质联用法测定食品中2,4-二氯苯氧乙酸(2,4-D)和2-甲-4-氯苯氧乙酸(MCPA)含量的方法。样品经0.01 mol/L氢氧化钠碱液提取后,用甲酸溶液调至酸性(pH=3.0),以Oasis HLB柱净化富集,在 HPLC-MS(SIR)模式下进行定性定量分析。结果表明,2,4-D和MCPA溶液在0.005～0.32mug/mL内呈良好的线性关系,相关系数r分别为0.999 3和0.999 6,检出限(S/N=3)分别为1.35,1.31mug/L,富集倍数为49和51,加标回收率为78.75%～103.75%。本法操作简便、结果准确、重复性好,是测定食品中残留2,4-D和MCPA含量的有效方法。
英文摘要	A method for the determination of 2,4-D and MCPA in foods was established by solid phase extraction and HPLC-MS.The samples were extracted by 0.01 mol/L sodium hydroxide solution firstly,adjusted to pH=3.0 with formic acid,then purified and enriched by Oasis HLB solid phase extraction column.Qualitative and quantitative analysis were carried out under the SIR mode after the chromatography separation.The experiment results showed good linear relationships were obtained in the concentrations from 0.005～0.32mug/mL with the correlation coefficient 0.999 3 and 0.999 6.The detection limits were 1.35,1.31mug/L(S/N=3).The enrichment factors were 49 and 51.The recoveries were in the range from 78.75%to 103.75%.This method was easy to operate with precise result ahd good repetition,which can be successfully applied to the determination of 2,4-D and MCPA in other foods.
中文关键词	固相萃取 ; 液质联用 ; 2,4-二氯苯氧乙酸 ; 2-甲-4-氯苯氧乙酸
英文关键词	SPE HPLC-MS 2,4-D MCPA
语种	中文
国家	中国
收录类别	CSCD
WOS类目	CHEMISTRY ANALYTICAL
WOS研究方向	Chemistry
CSCD记录号	CSCD:4318214
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227322
作者单位	1.浙江工业大学化学工程与材料学院, 杭州, 浙江 310032, 中国; 2.台州学院医药化工学院, 临海, 浙江 317000, 中国
推荐引用方式 GB/T 7714	刘贵花,韩德满,唐守万,等. 固相萃取-液质联用法测定食品中两种苯氧乙酸类除草剂含量[J],2011,40(8):1462-1465.
APA	刘贵花,韩德满,唐守万,潘富友,&闫瑞强.(2011).固相萃取-液质联用法测定食品中两种苯氧乙酸类除草剂含量.应用化工,40(8),1462-1465.
MLA	刘贵花,et al."固相萃取-液质联用法测定食品中两种苯氧乙酸类除草剂含量".应用化工 40.8(2011):1462-1465.