A vortex-assisted MSPD method for the extraction of pesticide residues from fish liver and crab hepatopancreas with determination by GC–MS

Development of a Matrix Solid Phase Dispersion methodology for the determination of triazine herbicides in mussels

“…RSD values lower than 10% and 16% for intraday and interday precision respectively were obtained (Table 2), which are in the acceptance range of the DG SANCO/12571/2013 of the European Quality Control Guidelines (RSD < 20%). It is worth noting that the obtained recoveries and relative standard deviation are comparable or even better to those provided by other authors for the determination of some of these pollutants by MSPD in fish (Gaunt & Barker, 2000;Souza-Caldas et al, 2013).…”

“…2.5 g of fresh tissue); therefore, approximately 5-fold lower LOQ values are achieved when referred to fresh sample. By comparing the LOQs obtained by the proposed methodology with those reported in the literature using MSPD in fish, better sensitivity is attained (Gaunt & Barker, 2000;Souza-Caldas et al, 2013).…”

“…MSPD methods have been developed for the extraction of triazine residues from different plants and plant materials (Ramos et al, 2009;Rodríguez-González, González-Castro, Beceiro-González, MuniateguiLorenzo, & Prada-Rodríguez, 2014;Wen et al, 2012); however references for the determination of triazines in animal tissues by MSPD are scarce. As far as we know, there are only two references in the literature devoted to the determination of triazines in fish by MSPD and furthermore few triazines are included in these studies (Gaunt & Barker, 2000;Souza-Caldas et al, 2013).…”

Recent advances and developments in matrix solid-phase dispersion

“…Briefly, after dispersion of the sample in the mortar with the solid support, the resulting homogeneous powder is placed into a centrifuge polypropylene tube with the appropriate elution solvent to obtain a suspension. Then, the tube content is vortexed for 1 min and centrifuged for 10 min to collect the final extract [49]. Compared to traditional MSPD with elution in a vacuum manifold, recoveries of pesticides in fish liver [49] obtained with the vortex-assisted procedure were slightly, but not significantly, lower.…”

“…Then, the tube content is vortexed for 1 min and centrifuged for 10 min to collect the final extract [49]. Compared to traditional MSPD with elution in a vacuum manifold, recoveries of pesticides in fish liver [49] obtained with the vortex-assisted procedure were slightly, but not significantly, lower. However the advantage of faster extraction claimed by the authors was not so evident.…”