Magnetic three-dimensional graphene solid-phase extraction coupled with high performance liquid chromatography for the determination of phthalate esters in fruit juice

2014 ◽  
Vol 6 (15) ◽  
pp. 5659-5665 ◽  
Author(s):  
Lin Hao ◽  
Chenhuan Wang ◽  
Xiaoxing Ma ◽  
Qiuhua Wu ◽  
Chun Wang ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Fruit Juice ◽  
Solid Phase ◽  
Phthalate Esters ◽  
Three Dimensional ◽  
Chromatography Analysis ◽  
Performance Liquid Chromatography Analysis

Three-dimensional graphene-based magnetic nanocomposite was synthesized and used as an effective adsorbent for the extraction of phthalate esters from fruit juice prior to high performance liquid chromatography analysis.

scholarly journals Application of selective polymeric sorbents for simple coumarins extraction from deodorant samples

2020 ◽  
Vol 13 (1) ◽  
pp. 56-62
Author(s):  
Katarína Hroboňová ◽  
Andrea Špačková
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Solid Phase Extraction ◽  
High Performance ◽  
Solid Phase ◽  
Biological Effects ◽  
Phase Extraction ◽  
Chromatography Analysis ◽  
Polymeric Sorbents

AbstractCoumarins (2H-1-benzopyran-2-coumarin derivatives) are derivatives of cinnamic acid naturally occurring in many plants, fungi, and fruits. They are used as ingredients in cosmetics to enhance the aroma and other biological effects. In this work, cosmetic samples (deodorants) were treated by solid phase extraction prior to high performance liquid chromatography determination of coumarins. Traditional sorbent (C18) and selective polymer-based sorbents (laboratory prepared and commercial) were used for solid phase extraction. Recovery values were above 85 % (RSDs below 6 %) except for esculin, where the recovery was lower. Core-shell column of C18 type and gradient of mobile phase methanol—1 % acetic acid were used for high performance liquid chromatography analysis of extracts. Limits of quantitation were 0.5 µg mL−1 for coumarin (ultraviolet detection) and below 12 ng mL−1 for esculin, umbelliferonene, scoparone, 4-methylumbelliferone, herniarin (fluorescence detection). In the tested samples, no coumarins were detected.

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