Simultaneous determination of 18 preservative residues in vegetables by ultra high performance liquid chromatography coupled with triple quadrupole/linear ion trap mass spectrometry using a dispersive-SPE procedure

Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Xue ZhouZhiqiong Chen

Abstract

A new method combining dispersive-solid phase purification procedure with ultra high performance liquid chromatography-triple quadrupole/linear ion trap mass spectrometry was developed for simultaneous determination of 18 preservative residues in vegetables. The new method not only had the advantages of dispersive-solid phase purification procedure such as high recoveries, easy operation, rapid analysis, little solvent usage and wide analysis range of preservatives, but also had the advantages of ultra high performance liquid chromatography-triple quadrupole/linear ion trap mass spectrometry to be operated in positive mode and negative mode simultaneously. The method was validated for the following representative matrices: radish (tuber), tomato (eggplant fruit), cabbage (leafy), cowpea (bean), cucumber (melon) and so on. Samples were extracted with hexane-ethyl acetate (1:2, v/v), and then detected by ultra high performance liquid chromatography-triple quadrupole/linear ion trap mass spectrometry after being cleaned up with dispersive-solid phase purification procedure. Significant matrix effects were compensated by using the matrix-matched calibration curves. 18 preservatives showed good linearity over the range of 5.0-100.0 ...Continue Reading

References

Oct 17, 2002·Journal of Agricultural and Food Chemistry·I Made S UtamaClem Kuek
Sep 27, 2005·Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan·Yoshihisa KakimotoHisako Tatsuguchi
Jul 1, 2008·Talanta·Maria Geovânia Dantas SilvaSandro Navickiene
Jan 17, 2009·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Yi YangHejun Duan

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