Hyphenated dispersive solid‐ and liquid‐phase microextraction technique based on a hydrophobic deep eutectic solvent: application for trace analysis of pesticides in fruit juices

2020 ◽  
Vol 100 (6) ◽  
pp. 2534-2543 ◽  
Author(s):  
Hassan Sereshti ◽  
Fatemeh Jamshidi ◽  
Nina Nouri ◽  
Hamid Rashidi Nodeh
Keyword(s):  
Liquid Phase ◽  
Trace Analysis ◽  
Deep Eutectic Solvent ◽  
Fruit Juices ◽  
Liquid Phase Microextraction

A lighter-than-water deep eutectic-solvent-based dispersive liquid-phase microextraction method in a U-shaped homemade device

2018 ◽  
Vol 42 (12) ◽  
pp. 10100-10110 ◽  
Author(s):  
Abolghasem Jouyban ◽  
Mir Ali Farajzadeh ◽  
Mohammad Reza Afshar Mogaddam
Keyword(s):  
Liquid Phase ◽  
Fruit Juice ◽  
Deep Eutectic Solvent ◽  
Liquid Phase Microextraction ◽  
Vegetable Samples ◽  
Glass Filter

A new microextraction method, termed glass-filter-based dispersive liquid-phase microextraction using a lighter-than-water deep eutectic solvent, was developed for the extraction and preconcentration of different classes of pesticides from fruit juice and vegetable samples.

scholarly journals Study on the Effect of Deep Eutectic Solvent Liquid Phase Microextraction on Quality Standard, Antitussive, and Expectorant of Sangbaipi Decoction

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Lijing Li ◽  
Yuejie Wang ◽  
Fangxin Liu ◽  
Yang Xu ◽  
Huiwei Bao
Keyword(s):  
Liquid Phase ◽  
Extraction Method ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Quality Standard ◽  
Molar Ratio ◽  
Phenol Red ◽  
Liquid Ratio ◽  
Liquid Phase Microextraction ◽  
Low Efficiency

The SD was extracted with a new green eutectic solvent, and the extraction method of TCM decoction was developed. In the quantitative analysis by HPLC, choline chloride phenol was selected as the eutectic solvent, THF was used as the extractant, and investigation of DES type, DES molar ratio, DES-to-THF ratio, vortex time, and material-to-liquid ratio was carried out. The experimental results showed that the optimal extraction method was as follows: the molar ratio of DES was 1 : 3, and the material-liquid ratio was 5 : 1200 (mL/μL). The volume ratio of DES to THF was 1200 : 800 (μL), the vortex time was 3 min, and the extraction was repeated two times. The eutectic solvent liquid phase microextraction method was adopted to optimize the extraction method of SD and reduce the complicated processing, long time, and low efficiency of traditional methods. At the same time, in the mouse ammonia water inducing cough and phenol red excretion and expectorant experiments, SD high- and medium-dose groups have a significant inhibitory effect on the frequency of antitussive in mice and both can increase the excretion of phenol red to varying degrees, indicating that SD has good cough-relieving and expectorant effect. The present study suggests a scientific basis and basis for the clinical research and quality standard formulation of SD.

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