Ultra-High-Performance Micellar Liquid Chromatography Comparing Tween 20 and Tween 40 for the Determination of Hydroxycinnamic Acids
A simple and green ultra-high-performance micellar liquid chromatography (MLC) method was developed here, comparing Tween 20 and Tween 40 for the first time as the only mobile phase modifiers with a C18 column. Its application to the separation of nine hydroxycinnamic acid (HCA) derivatives (cinnami...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Separations |
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| Online Access: | https://www.mdpi.com/2297-8739/9/3/61 |
| _version_ | 1797442224554770432 |
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| author | Abd al-karim F. Ali Neil D. Danielson |
| author_facet | Abd al-karim F. Ali Neil D. Danielson |
| author_sort | Abd al-karim F. Ali |
| collection | DOAJ |
| description | A simple and green ultra-high-performance micellar liquid chromatography (MLC) method was developed here, comparing Tween 20 and Tween 40 for the first time as the only mobile phase modifiers with a C18 column. Its application to the separation of nine hydroxycinnamic acid (HCA) derivatives (cinnamic, caffeic, ferulic, sinapic, o-, m-, p-coumaric, 3,4-dihydroxyhydrocinnamic, and chlorogenic acids) was made, due to their importance as antioxidants in a variety of natural beverages such as wine and coffee. The optimal conditions of 45 °C temperature (T), 1% surfactant in the mobile phase, and pH control with 2.5 mM sulfuric acid were determined and used to elucidate the analytical figures of merit. Although the effect of these conditions was insignificant between the two surfactants, the nine-component HCA mixture was separated faster—in about 15 min—and with less peak tailing using Tween 20 than with Tween 40. The linearity of the Van’t Hoff (lnk versus 1/T) plots was evident for Tween 20, indicating a single retention mechanism—but less so for Tween 40. The equilibrium constants of the analytes with the micelles and the stationary phase were calculated. The developed method was successfully used to analyze organic red wine, spiked organic red wine, and green coffee diet pills. The percent recoveries of the nine HCA compounds spiked in the organic red wine ranged from 90% to 107%. The green coffee extract diet pills showed the presence of a significant amount of chlorogenic acid. |
| first_indexed | 2024-03-09T12:38:43Z |
| format | Article |
| id | doaj.art-45e0a8bce6c04f2489342cda6f44a354 |
| institution | Directory Open Access Journal |
| issn | 2297-8739 |
| language | English |
| last_indexed | 2024-03-09T12:38:43Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Separations |
| spelling | doaj.art-45e0a8bce6c04f2489342cda6f44a3542023-11-30T22:21:19ZengMDPI AGSeparations2297-87392022-02-01936110.3390/separations9030061Ultra-High-Performance Micellar Liquid Chromatography Comparing Tween 20 and Tween 40 for the Determination of Hydroxycinnamic AcidsAbd al-karim F. Ali0Neil D. Danielson1Department of Chemistry College of Education for Pure Sciences, University of Diyala, Baqubah MJJ2+R9G, IraqDepartment of Chemistry and Biochemistry, 651 E. High Street, Miami University, Oxford, OH 45056, USAA simple and green ultra-high-performance micellar liquid chromatography (MLC) method was developed here, comparing Tween 20 and Tween 40 for the first time as the only mobile phase modifiers with a C18 column. Its application to the separation of nine hydroxycinnamic acid (HCA) derivatives (cinnamic, caffeic, ferulic, sinapic, o-, m-, p-coumaric, 3,4-dihydroxyhydrocinnamic, and chlorogenic acids) was made, due to their importance as antioxidants in a variety of natural beverages such as wine and coffee. The optimal conditions of 45 °C temperature (T), 1% surfactant in the mobile phase, and pH control with 2.5 mM sulfuric acid were determined and used to elucidate the analytical figures of merit. Although the effect of these conditions was insignificant between the two surfactants, the nine-component HCA mixture was separated faster—in about 15 min—and with less peak tailing using Tween 20 than with Tween 40. The linearity of the Van’t Hoff (lnk versus 1/T) plots was evident for Tween 20, indicating a single retention mechanism—but less so for Tween 40. The equilibrium constants of the analytes with the micelles and the stationary phase were calculated. The developed method was successfully used to analyze organic red wine, spiked organic red wine, and green coffee diet pills. The percent recoveries of the nine HCA compounds spiked in the organic red wine ranged from 90% to 107%. The green coffee extract diet pills showed the presence of a significant amount of chlorogenic acid.https://www.mdpi.com/2297-8739/9/3/61micellar liquid chromatographyTween surfactantshydroxycinnamic acid derivatives |
| spellingShingle | Abd al-karim F. Ali Neil D. Danielson Ultra-High-Performance Micellar Liquid Chromatography Comparing Tween 20 and Tween 40 for the Determination of Hydroxycinnamic Acids Separations micellar liquid chromatography Tween surfactants hydroxycinnamic acid derivatives |
| title | Ultra-High-Performance Micellar Liquid Chromatography Comparing Tween 20 and Tween 40 for the Determination of Hydroxycinnamic Acids |
| title_full | Ultra-High-Performance Micellar Liquid Chromatography Comparing Tween 20 and Tween 40 for the Determination of Hydroxycinnamic Acids |
| title_fullStr | Ultra-High-Performance Micellar Liquid Chromatography Comparing Tween 20 and Tween 40 for the Determination of Hydroxycinnamic Acids |
| title_full_unstemmed | Ultra-High-Performance Micellar Liquid Chromatography Comparing Tween 20 and Tween 40 for the Determination of Hydroxycinnamic Acids |
| title_short | Ultra-High-Performance Micellar Liquid Chromatography Comparing Tween 20 and Tween 40 for the Determination of Hydroxycinnamic Acids |
| title_sort | ultra high performance micellar liquid chromatography comparing tween 20 and tween 40 for the determination of hydroxycinnamic acids |
| topic | micellar liquid chromatography Tween surfactants hydroxycinnamic acid derivatives |
| url | https://www.mdpi.com/2297-8739/9/3/61 |
| work_keys_str_mv | AT abdalkarimfali ultrahighperformancemicellarliquidchromatographycomparingtween20andtween40forthedeterminationofhydroxycinnamicacids AT neilddanielson ultrahighperformancemicellarliquidchromatographycomparingtween20andtween40forthedeterminationofhydroxycinnamicacids |