Headspace solid phase microextraction applied to the analysis of organophosphorus insecticides in strawberry and cherry juices

被引:62
作者
Lambropoulou, DA [1 ]
Albanis, TA [1 ]
机构
[1] Univ Ioannina, Dept Chem, Lab Ind Chem, Ioannina 45110, Greece
关键词
fruit juice analysis; OP insecticides; HS-SPME; gas chromatography;
D O I
10.1021/jf0112771
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
A method based on a headspace solid phase microextraction (HS-SPME) technique followed by gas chromatography with flame thermionic and mass spectrometric detection was developed for the determination of seven organophosphorus (OPs) insecticide residues in strawberry and cherry juice samples. The extraction capacities of four fiber coatings, polyacrylate (PA 85 mum), poly(dimethylsiloxane) (PDMS 100 mum), carbowax-divinylbenzene (CW-DVB 65 mum), and poly(dimethylsiloxane)-divinylbenzene (PDMS-DVB 65 mum), have been studied and compared. The method was developed using spiked strawberry and cherry juices in a concentration range of 0.5-50 mug/L The PDMS 100 mum fiber showed good extraction efficiency for the target compounds. An increase in the extraction efficiency of OP insecticides was observed when the parameters affecting the HS-SPME process such as temperature, extraction time, salt additives, stirring rate, pH, and effect of dilution were optimized. Good linearity of compounds was observed in the tested concentration range. The relative standard deviations were found to be <20%. The limits of detection were between 0.025 and 0.050 mug/L. The mean relative recoveries ranged from 82 to 102%.
引用
收藏
页码:3359 / 3365
页数:7
相关论文
共 29 条
[1]  
[Anonymous], 1993, OFF J EUR COMMUNITIE
[2]   Solid-phase microextraction for quantitative analysis of organophosphorus pesticides in environmental water samples [J].
Beltran, J ;
Lopez, FJ ;
Cepria, O ;
Hernandez, F .
JOURNAL OF CHROMATOGRAPHY A, 1998, 808 (1-2) :257-263
[3]   Solid-phase microextraction in pesticide residue analysis [J].
Beltran, J ;
López, FJ ;
Hernández, F .
JOURNAL OF CHROMATOGRAPHY A, 2000, 885 (1-2) :389-404
[4]   US market basket study to determine residues of the insecticide chlorpyrifos [J].
Bolles, HG ;
Dixon-White, HE ;
Peterson, RK ;
Tomerlin, JR ;
Day, EW ;
Oliver, GR .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1999, 47 (05) :1817-1822
[5]   Multi-residue methodology for pesticide screening in wines [J].
Correia, M ;
Delerue-Matos, C ;
Alves, A .
JOURNAL OF CHROMATOGRAPHY A, 2000, 889 (1-2) :59-67
[6]   Solid-phase microextraction of monocyclic aromatic amines from biological fluids [J].
DeBruin, LS ;
Josephy, PD ;
Pawliszyn, JB .
ANALYTICAL CHEMISTRY, 1998, 70 (09) :1986-1992
[7]  
*FAO, 1993, 27 SESS FAO C ROM IT
[8]   Determination of organophosphorus pesticides in honeybees after solid-phase microextraction [J].
Fernández, M ;
Padrón, C ;
Marconi, L ;
Ghini, S ;
Colombo, R ;
Sabatini, AG ;
Girotti, S .
JOURNAL OF CHROMATOGRAPHY A, 2001, 922 (1-2) :257-265
[9]  
HELLA DG, 1997, INT J ENVIRON AN CH, V67, P1
[10]   Use of solid phase microextraction for the quantitative determination of herbicides in soil and water samples [J].
Hernandez, F ;
Beltran, J ;
Lopez, FJ ;
Gaspar, JV .
ANALYTICAL CHEMISTRY, 2000, 72 (10) :2313-2322