Cited by 18Analytical chemistry methods developmentAnalytical Chemistry and ChromatographyMicrofluidic and Capillary Electrophoresis Applications

Combination of ultrasound‐assisted ethyl chloroformate derivatization and switchable solvent liquid‐phase microextraction for the sensitive determination of l‐methionine in human plasma by GC–MS

Erarpat, Sezin, Bodur, Süleyman, Öztürk Er, Elif, Bakırdere, Sezgin·2020·Journal of Separation Science

Abstract

A green and fast analytical method for the determination of l‐methionine in human plasma is presented in this study. Preconcentration of the analyte was carried out by switchable solvent liquid phase microextraction after ethyl chloroformate derivatization reaction. Instrumental detection of the analyte was performed by means of gas chromatography–mass spectrometry. N,N‐Dimethyl benzylamine was used in the synthesis of switchable solvent. Protonated N,N‐dimethyl benzylamine volume, volume/concentration of sodium hydroxide, and vortex period were meticulously fixed to their optimum values. Besides, ethyl chloroformate, pyridine, and ethanol volumes were optimized in order to get high derivatization yield. After the optimization studies, limit of detection and quantitation values were attained as 3.30 and 11.0 ng/g, respectively, by the developed switchable solvent liquid phase microextraction gas chromatography–mass spectrometry method that corresponding to 76.7‐folds enhancement in detection power of the gas chromatography–mass spectrometry system. Applicability and accuracy of the switchable solvent liquid phase microextraction–gas chromatography–mass spectrometry method were also checked by spiking experiments. Percent recovery results were ranged from 97.8 to 100.5% showing that human plasma samples could be analyzed for its l‐methionine level by the proposed method.

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Crossref · 10.1002/jssc.201901078

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  • In SHS-based methods, the subsequent pH change after CO2 solubilization is normally performed with strong acids or strong bases.

    “First of all, in spite of employing CO 2 for the solubilization step, the subsequent pH change is normally performed with strong acids [14][15][16] or strong bases [17,18].”

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Authors
Erarpat, S., Bodur, S., Öztürk Er, E., & Bakırdere, S.
Affiliations
  • Yıldız Technical University (TR)
  • Department of Chemical Engineering Yıldız Technical University İstanbul Turkey
Corresponding author
Bakırdere, Sezgin
Venue
Journal of Separation Science
Publisher
Wiley
Published
2020-01-08
Volume
43
Issue
6
Pages
1100-1106
ISSN
  • 1615-9306 (ISSN-L)
  • 1615-9314
OpenAlex
W2995428254
Cited by
18
References
48
Citations by year
2025: 2 · 2024: 3 · 2023: 4 · 2022: 2 · 2021: 4 · 2020: 3
FWCI
1.26
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Separation Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Chemistry › Analytical Chemistry › Analytical chemistry methods development
  • Physical Sciences › Chemistry › Spectroscopy › Analytical Chemistry and Chromatography
  • Physical Sciences › Engineering › Biomedical Engineering › Microfluidic and Capillary Electrophoresis Applications
Keywords
methionine, human plasma, ethyl chloroformate derivatization, N,N-dimethylbenzylamine, derivatization optimization, preconcentration, green analytical method, amino acid analysis
MeSH terms
Ultrasonic Waves, Amines, Formic Acid Esters, Humans, Gas Chromatography-Mass Spectrometry, Methionine, Solvents, Molecular Structure, Liquid Phase Microextraction, Healthy Volunteers

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