High-throughput multipesticides residue analysis in earthworms by the improvement of purification method: Development and application of magnetic Fe3 O4 -SiO2 nanoparticles based dispersive solid-phase extraction

2018 ◽  
Vol 41 (11) ◽  
pp. 2419-2431 ◽  
Author(s):  
Yuhan Sun ◽  
Peipei Qi ◽  
Tao Cang ◽  
Zhiwei Wang ◽  
Xiangyun Wang ◽  
...  
The Analyst ◽  
2014 ◽  
Vol 139 (23) ◽  
pp. 6266-6271 ◽  
Author(s):  
Gang-Tian Zhu ◽  
Xiao-Mei He ◽  
Bao-Dong Cai ◽  
Han Wang ◽  
Jun Ding ◽  
...  

A rapid and high-throughput in-syringe dispersive solid phase extraction (dSPE) system using electrospun fibers as adsorbents is presented.


2018 ◽  
Vol 10 (7) ◽  
pp. 757-766 ◽  
Author(s):  
Pengyue Zhao ◽  
Pedro J. J. Alvarez ◽  
Xuesheng Li ◽  
Canping Pan

A dispersive SPE with PSA and MWCNTs as sorbent material was developed for pesticide residue analysis in berry samples.


2019 ◽  
Vol 15 (7) ◽  
pp. 788-800 ◽  
Author(s):  
Natasa P. Kalogiouri ◽  
Victoria F. Samanidou

Background:The sample preparation is the most crucial step in the analytical method development. Taking this into account, it is easily understood why the domain of sample preparation prior to detection is rapidly developing. Following the modern trends towards the automation, miniaturization, simplification and minimization of organic solvents and sample volumes, green microextraction techniques witness rapid growth in the field of food quality and safety. In a globalized market, it is essential to face the consumers need and develop analytical methods that guarantee the quality of food products and beverages. The strive for the accurate determination of organic hazards in a famous and appreciated alcoholic beverage like wine has necessitated the development of microextraction techniques.Objective:The objective of this review is to summarize all the recent microextraction methodologies, including solid phase extraction (SPE), solid phase microextraction (SPME), liquid-phase microextraction (LPME), dispersive liquid-liquid microextraction (DLLME), stir bar sorptive extraction (SBSE), matrix solid-phase dispersion (MSPD), single-drop microextraction (SDME) and dispersive solid phase extraction (DSPE) that were developed for the determination of hazardous organic compounds (pesticides, mycotoxins, colorants, biogenic amines, off-flavors) in wine. The analytical performance of the techniques is evaluated and their advantages and limitations are discussed.Conclusion:An extensive investigation of these techniques remains vital through the development of novel strategies and the implication of new materials that could upgrade the selectivity for the extraction of target analytes.


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