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Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A mixture of 49 pesticides amenable to gas chromatography (GC) were quantitatively recovered from spiked bamboo shoot, based on QuEChERS-modified, and determined using gas chromatography-tandem mass spectrometry (GC-MS/MS). The method employed involved initial extraction in a acetonitrile,an extraction/partitioning step after the addition of salt,and a cleanup step utilizing dispersive solid-phase extraction by PSA and C18. The sample was dissolved in toluene, and then determined by GC-MS/MS. This combination ensured that it was a rapid, simple and cost-effective procedure. For 49 pesticides, the LOD ranged from 1. 0 to 26. 2 μg/kg respectively,the correlation coefficient was above 0. 99. The spiking levels for the recovery experiments were 10. 0, 50. 0 and 100. 0 μg/kg for GC-MS/MS analyses. Mean recoveries mostly ranged between 62. 5 % and 121. 8 % and relative standard deviations (RSD) were generally 0. 8 %-11. 7%. Based on these results,the methodology has been proved to be highly efficient and robust and thus suitable for monitoring the pesticide residue in bamboo shoot. [ABSTRACT FROM AUTHOR]