Hollow fiber based liquid phase microextraction for the determination of organochlorine pesticides in ecological textiles by gas chromatography–mass spectrometry

New application of chitosan‐grafted polyaniline in dispersive solid‐phase extraction for the separation and determination of phthalate esters in milk using high‐performance liquid chromatography

“…Conventional sample pretreatments such as LLE, solvent extraction, or SPE suffer from drawbacks such as time‐consuming and producing large quantities of hazardous organic solvent or for SPE the cartridge is expensive and process is tedious . Recently, an advanced form of SPE, dispersive solid‐phase extraction (d‐SPE), has been developed; in this technique the micro (or nano) amount of adsorbent is directly dispersed into the sample solution containing the target analytes, after extraction time, the adsorbent containing analytes is separated by centrifugation . Various materials have been used as a sorbent such as carbon materials , silica , zeolite , and various polymers .…”

Determination of Three Organochlorine Pesticides in Aqueous Samples by Solid-Phase Extraction Based on Natural Nano Diatomite in Packed Syringe Coupled to Gas Chromatography-Mass Spectrometry

“…In order to emphasize the applicability of the proposed method, a comparison was made between the characteristic parameters of the present method and those reported in the literature, the obtained results are tabulated in Table 4. 17,31,32 The characteristic parameters involved in this method proved to be similar to or better than those of the other methods. As demonstrated in our method validation for linearity, LOD, RSD, and recovery, the developed method was sensitive and reproducible over the established calibration ranges compared with the previously reported methods.…”

Applications of Hollow-Fiber and Related Microextraction Techniques for the Determination of Pesticides in Environmental and Food Samples—A Mini Review

“…There are exceptions to this oversight, however. Cai et al [56] compared the developed two-phase HFME method for determination of organochlorine pesticides in textiles with SPME and with classical solvent extraction. The HFME method yielded comparable precision and accuracy, with somewhat lower LOQs, but longer extraction time.…”