Development and validation of an efficient automated method for the analysis of 300 pesticides in foods using two-dimensional liquid chromatography–tandem mass spectrometry

Determination of RH‐5849 and indoxacarb in rice straw, rice husk, brown rice and soil using liquid chromatography–tandem triple quadrupole mass spectrometry following extraction with QuEChERS method

“…RH-5849 and indoxacarb showed abundant [M À H] À ions and [M + H] + ions, respectively, which were usually selected as precursor ions. The results were consistent with previous reports (Qian et al, 2012;Kittlaus et al, 2013;Rajski et al, 2013). Identification was conducted based on the retention time, on the two selected ion transitions (m/z 294.7 → 121.0 for RH-5849 and 528.3 → 218.2 for indoxacarb) and on their relative abundance.…”

“…A variety of instrumental methods have been proposed for the quantitative analysis of indoxacarb, either singly or simultaneously, including gas chromatography (Łozowicka, 2013;Słowik-Borowiec et al, 2015), liquid chromatography-tandem mass spectrometry (LC-MS/MS; Fenoll et al, 2010;Kittlaus et al, 2013;Shao et al, 2013;Rajski et al, 2013), gas chromatography-mass spectrometry (GC-MS; Xu et al, 2009) and ultraÀhigh performance liquid chromatography/timeÀofÀflight mass spectrometry (Sivaperumal et al, 2015). However, only few studies on the analysis of RH-5849 have been reported, most of them using liquid chromatography (LC) (Qian et al, 2012) and GC-MS (Zhao et al, 2012).…”

“…In recent years, the introduction of LC-MS/MS has led to a significant improvement in the residual analysis of pesticides because of the high sensitivity and selectivity of this technique. LC coupled with a triple quadrupole mass spectrometer in selected mutiple reaction monitoring (MRM) mode was considered one of the most powerful techniques for quantification of RH-5849 and indoxacarb in food (Kittlaus et al, 2013;Shao et al, 2013).…”

Application of QuEChERS based method for the determination of pesticides in nutraceutical products (Camellia sinensis) by liquid chromatography coupled to triple quadrupole tandem mass spectrometry

“…Concerning sample treatment, in the case of green tea, QuEChERS (acronym of quick, easy, cheap, effective, rugged and safe) is the extraction procedure most widely used by the revised literature (Chen et al, 2010;Kanrar, Mandal, & Bhattacharyya, 2010;Kittlaus, Schimanke, Kempe, & Speer, 2013;Lozano et al, 2012;Rajski et al, 2013;Zhao, Wang, Jiang, Zhang, & Pan, 2012). Other sample treatments used were solid phase extraction (SPE) (Gupta & Shanker, 2008;Huang et al, 2009;Inoue et al, 2013;Lu et al, 2010;Zhang et al, 2010), and solid phase microextraction (SPME) (Ishizaki, Sito, & Kataoka, 2010).…”

“…Gas chromatography (GC) (Cajka et al, 2012;Lozano et al, 2012;Rajski et al, 2013) and liquid chromatography (LC) (Chen et al, 2010;Gupta & Shanker, 2008;Huang et al, 2009;Inoue et al, 2013;Ishizaki et al, 2010;Kanrar et al, 2010;Kittlaus et al, 2013;Lu et al, 2010;Zhang et al, 2010;Zhao et al, 2012) are commonly used for the separation of pesticides. Although GC amenable pesticides can still be used, LC is replacing GC methodologies bearing in mind that pesticides are often more polar and less volatile.…”