Ultrasound-assisted ionic liquid-based micellar extraction combined with microcrystalline cellulose as sorbent in dispersive microextraction for the determination of phenolic compounds in propolis

2017 ◽  
Vol 963 ◽  
pp. 24-32 ◽  
Author(s):  
Jun Cao ◽  
Li-Qing Peng ◽  
Li-Jing Du ◽  
Qi-Dong Zhang ◽  
Jing-Jing Xu
Keyword(s):  
Ionic Liquid ◽  
Phenolic Compounds ◽  
Microcrystalline Cellulose ◽  
Micellar Extraction ◽  
Dispersive Microextraction ◽  
Ultrasound Assisted

A simple, rapid and green ultrasound assisted and ionic liquid dispersive microextraction procedure for the determination of tin in foods employing ETAAS

2018 ◽  
Vol 245 ◽  
pp. 380-384 ◽  
Author(s):  
Mustafa Tuzen ◽  
Ozgur Dogan Uluozlu ◽  
Durali Mendil ◽  
Mustafa Soylak ◽  
Luana O.R. Machado ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Dispersive Microextraction ◽  
Ultrasound Assisted

A hydroxyl functionalized ionic liquid-based ultrasound-assisted surfactant-enhanced emulsification microextraction for the determination of herbicides in water samples

2014 ◽  
Vol 6 (21) ◽  
pp. 8744-8751 ◽  
Author(s):  
Zhihong Huang ◽  
Xiaolu Meng ◽  
Ming Liu ◽  
Suli Wang
Keyword(s):  
Ionic Liquid ◽  
Water Samples ◽  
Functionalized Ionic Liquid ◽  
Ultrasound Assisted ◽  
Emulsification Microextraction

This paper describes a hydroxyl functionalized ionic liquid (FIL), 1-hydroxyl hexyl-3-methylimidazoliumbis[(trifluoromethyl)sulfonyl] imide [HHyMIMTf2N] used for the extraction and preconcentration of 7 herbicides from water samples by ultrasound-assisted surfactant-enhanced emulsification microextraction.

Ionic liquid-based ultrasound-assisted emulsification microextraction for the determination of ranitidine in water samples and pharmaceutical preparations

2020 ◽  
Vol 44 (27) ◽  
pp. 11490-11497
Author(s):  
Ilona Kiszkiel-Taudul ◽  
Barbara Starczewska ◽  
Anna Jabłońska
Keyword(s):  
Ionic Liquid ◽  
Receptor Antagonist ◽  
Water Samples ◽  
Extraction Method ◽  
Pharmaceutical Preparations ◽  
Aqueous Samples ◽  
Ultrasound Assisted ◽  
Emulsification Microextraction

A new extraction method is proposed for the isolation of the histamine H2 receptor antagonist ranitidine (RNT) from aqueous samples.

Ultrasound-Assisted Ionic Liquid-Dispersive Liquid–Liquid of Curcumin in Food Samples Microextraction and Its Spectrophotometric Determination

2019 ◽  
Vol 102 (1) ◽  
pp. 217-221 ◽  
Author(s):  
Yunus Emre Unsal ◽  
Mustafa Tuzen ◽  
Mustafa Soylak
Keyword(s):  
Ionic Liquid ◽  
Method Development ◽  
Low Cost ◽  
Cost Effective ◽  
Enrichment Factors ◽  
Food Samples ◽  
Ultrasound Assisted ◽  
Dispersive Liquid Liquid Microextraction ◽  
Development Methods

Abstract Background: A rapid and new ultrasound-assisted ionic liquid-dispersive liquid–liquid microextraction method (UA-IL-DLLME) was presented for the determination of curcumin by spectrophotometry. Objective: To determine trace levels of curcumin in food samples by using green and low-cost method development. Methods: 1-Butyl-3-methylimidazolium hexafluorophosphate was used to extract curcumin from sample solutions with the aid of sonication. Optimum extraction efficiency was determined by examining extraction solvents, pH, centrifugation speed, time, sonication period, and temperature. The influences of diverse ions on the recovery of curcumin were examined. The concentration of curcumin in the final solution was measured by spectrophotometer at 425 nm. Results: The enrichment factor achieved was 167. The LOD and the RSD were 0.51 μg/L and 4.3%, respectively. The presented method was performed to detect curcumin in 20 food samples. Conclusions: The presented UA-IL-DLLME method is simple, low in cost, environmentally friendly, rapid, and sensitive and requires minimal use of toxic organic solvents. Highlights: A microextraction method was applied to increase sensitivity. Higher enrichment factors and lower detection limits were observed. The proposed technique is easy, cost-effective, accurate, and precise.

Simultaneous Determination of Four Plant Hormones in Soil by Ultrasound-Assisted Ionic Liquid Based Dispersive Liquid-Liquid Microextraction

2014 ◽  
Vol 675-677 ◽  
pp. 181-184 ◽  
Author(s):  
Gui Qi Huang ◽  
She Ying Dong ◽  
Zhen Yang ◽  
Ting Lin Huang
Keyword(s):  
Ionic Liquid ◽  
Plant Hormones ◽  
High Performance ◽  
Extraction Solvent ◽  
Target Analytes ◽  
Relative Standard ◽  
Ultrasound Assisted ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

An ultrasound-assisted ionic liquid based dispersive liquid-liquid microextraction (UA-IL-DLLME) was developed for the determination of four plant hormones (6-benzyladenine (6-BA), kinetin (6-KT), 2, 4-dichlorophenoxy acetic acid (2, 4-D) and uniconazole (UN)) in soil, using high performance liquid chromatography (HPLC)-diode array detection (DAD). Several important parameters including the type and volume of extraction solvent, the volume of disperser solvent, ultrasound time, pH of the solution and salt effect were studied and optimized. Under optimum conditions, the limits of detections (LODs) for the target analytes were in the range of 0.002-0.01 μg g-1. And satisfactory recoveries of the target analytes in the soil samples were 79.3-96.7 %, with relative standard deviations (RSD, n=5) that ranged from 4.3 to 6.7%.

Sign in / Sign up

Export Citation Format

Share Document