View More View Less
  • 1 National Institute for Food Control (NIFC), 13 Phan Huy Chu, Hoan Kiem district, Hanoi, Vietnam
  • | 2 Hanoi University of Pharmacy, 3-15 Le Thanh Tong, Hoan Kiem district, Hanoi, Vietnam
Restricted access

Purchase article

USD  $25.00

1 year subscription (Individual Only)

USD  $878.00

A modified QuEChERS method was developed and validated for determination of pesticide multi-residues in green tea by liquid chromatography tandem mass spectrometry. Lead acetate was first time used together with primary secondary amine and graphite carbon black to eliminate tannin, caffeine, and other pigments in tea and thus reduced the matrix effects. The method was compared to the original QuEChERS method as well as A.O.A.C. QuEChERS method. For accurate quantification, the matrix matched calibration technique was used. The method showed good performance in the concentration range from 0.01 to 1 mg kg–1. All pesticides could be quantified at and lower than 0.01 mg kg–1. Recoveries were from 70 to 120% and repeatabilities were <15% RSD depending on the compounds.

  • A.O.A.C. (2010): Official methods of analysis (18th rev. 3), -in: HORWITZ, W. & LATIMER, G.W. (Eds) Association of Official Analytical Chemists, Inc., Guithersburg, MD, USA. Official Method 2007.01 Pesticide residues in foods by acetonitrile extraction and partitioning with magnesium sulfate, pp. 1726.

    • Search Google Scholar
    • Export Citation
  • ANASTASSIADES, M., LEHOTAY, S.J., STAJNBAHER, D. & SCHENCK, F.J. (2003): Fast and easy multiresidue method employing acetonitrile extraction/partitioning and dispersive solid-phase extraction for the determination of pesticide residues in produce. J. AOAC Int., 86, 412431.

    • Search Google Scholar
    • Export Citation
  • BS EN (2008): Foods of plant origin. Determination of pesticide residues using GC-MS and/or LC-MS/MS following acetonitrile extraction/partitioning and clean-up by dispersive SPE. QuEChERS-method. BS EN 15662

    • Search Google Scholar
    • Export Citation
  • CHEN, G., CAO, P. & LIU, R. (2011): A multi-residue method for fast determination of pesticides in tea by ultraperformance liquid chromatography-electrospray tandem mass spectrometry combined with modified QuEChERS sample preparation procedure. Food Chem., 125, 14061411.

    • Search Google Scholar
    • Export Citation
  • CHO, S.K., ABDEL-ATY, A.M., CHOI, J.H., JEONG, Y.M., SHIN, H.C., CHANG, B.J., LEE, C. & SHIM, J.H. (2008): Effectiveness of pressurized liquid extraction and solvent extraction for the simultaneous quantification of 14 pesticide residues in green tea using GC. J. Sep. Sci., 31, 17501760.

    • Search Google Scholar
    • Export Citation
  • DAI, R., REN, X., HE, X. & HUO, Y. (2011): Convenient analytical method for quantitative determination of 23 pesticide residues in herbs by gas chromatography mass spectrometry. Bull. Environ. Contam. Toxicol., 86, 559564.

    • Search Google Scholar
    • Export Citation
  • EUROPEAN COMMISSION (2002): Decision 2002/657/EC of 12 August 2002 implementing Council Directive 96/23/EC concerning the performance of analytical methods and the interpretation of results.

    • Search Google Scholar
    • Export Citation
  • FAN, C.L., CHANG, Q.Y., PANG, G.F., LI, Z.Y., KANG, J., PAN, G.Q., ZHENG, S.Z., WANG, W.W., YAO, C.C. & JI, X.X. (2013): High-throughput analytical techniques for determination of residues of 653 multiclass pesticides and chemical pollutants in tea, Part II: Comparative study of extraction efficiencies of three sample preparation techniques. J. AOAC Int., 96, 432440.

    • Search Google Scholar
    • Export Citation
  • GRAHAM, H.N. (1992): Green tea composition, consumption, and polyphenol chemistry. Prev. Med., 21, 334350.

  • GUAN, Y., TANG H., CHEN, D., XU, T. & LI, L. (2013): Modified QuEChERS method for the analysis of 11 pesticide residues in tea by liquid chromatography-tandem mass spectrometry. Anal. Methods, 5, 30563067.

    • Search Google Scholar
    • Export Citation
  • HUANG, Z., LI, Y., CHEN, B. & YAO, S. (2007): Simultaneous determination of 102 pesticide residues in Chinese teas by gas chromatography-mass spectrometry. J. Chromatog. B, 853, 154162.

    • Search Google Scholar
    • Export Citation
  • LEHOTAY, S.J., KOK, A., HIEMSTRA, M. & BODEGRAVEN, P. (2005): Validation of a fast and easy method for the determination of residues from 229 pesticides in fruits and vegetables using gas and liquid chromatography and mass spectrometric detection. J. AOAC Int., 88, 595614.

    • Search Google Scholar
    • Export Citation
  • LOZANO, A., RAJSKI, L., BELMONTE-VALLES, N., UCLES, A., UCLES, S., MEZCUA, M. & FERNANDEZ-ALBA, A.R. (2012): Pesticide analysis in teas and chamomile by liquid chromatography and gas chromatography tandem mass spectrometry using a modified QuEChERS method: Validation and pilot survey in real samples. J. Chromatog.A., 1268, 109122.

    • Search Google Scholar
    • Export Citation
  • NGUYEN, T.D., LEE, K.J., LEE, M.H. & LEE, G.H. (2010): A multiresidue method for the determination 234 pesticides in Korean herbs using gas chromatography mass spectrometry. Microchem. J., 95, 4349.

    • Search Google Scholar
    • Export Citation
  • RAJSKI, L., LOZANO A., BELMONTE-VALLES, N., UCLES, A., UCLES, S., MEZCUA, M. & FERNANDEZ-ALBA, A.R. (2013): Comparison of three multiresidue methods to analyse pesticides in green tea with liquid and gas chromatography/tandem mass spectrometry. Analyst, 138, 921931.

    • Search Google Scholar
    • Export Citation
  • REDIFF.COM (2012): Biggest tea producing countries in the world. http://www.rediff.com/business/slide-show/slideshow-1-biggest-tea-producing-countries-in-the-world/20120313.htm.

    • Search Google Scholar
    • Export Citation
  • SHOEIBI, S., AMIRAHMADI, M., RASTEGAR, H., KHOSOKHAVAR, R. & KHANGHAH, A.M. (2013): An applicable strategy for improvement recovery in simultaneous analysis of 20 pesticides residue in tea. J. Food Sci., 78, 792796.

    • Search Google Scholar
    • Export Citation
  • STAHNKE, H., KITTLAUS, S, KEMPE, G. & ALDER, L. (2012): Reduction of matrix effects in liquid chromatography electrospray ionization–mass spectrometry by dilution of the sample extracts: How much dilution is needed? Anal. Chem., 84, 14741482.

    • Search Google Scholar
    • Export Citation
  • STEINIGER, D., LU, G., BUTLER, J., PHILLIPS, E. & FINTSCHENKO, Y. (2010): Determination of multiresidue pesticides in green tea by using a modified QuEChERS extraction and ion-trap gas chromatography/mass spectrometry. J.AOAC Int., 93, 11691179.

    • Search Google Scholar
    • Export Citation
  • WANG, S.F., ZHANG, S.J., DONG, C.H., WANG, G.Q., GUO, J.F. & SUN, W.Y. (2013): Simultaneous determination of four herbicide and pesticide residues in Chinese green tea using QuEChERS purification procedure and UPLC-MS/MS analysis. Adv. Mat. Res., 634, 15861590.

    • Search Google Scholar
    • Export Citation
All Time Past Year Past 30 Days
Abstract Views 78 78 3
Full Text Views 21 11 0
PDF Downloads 18 3 0