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Thiol Quantification Using Colorimetric Thiol-Disulfide Exchange in Nonaqueous Solvents. | LitMetric

Thiol Quantification Using Colorimetric Thiol-Disulfide Exchange in Nonaqueous Solvents.

ACS Omega

Biomaterials and Biomechanics, School of Dentistry, Oregon Health & Sciences University, 2730 S Moody Ave., Portland, Oregon 97201, United States.

Published: March 2023

AI Article Synopsis

  • - The study investigates the behavior of two thiol quantification chromophores, Ellman's reagent and Aldrithiol-4, in nonaqueous solvents, revealing variations in kinetic profiles and response factors.
  • - It presents several reliable methods for thiol quantification at room temperature using different organic solvents, highlighting the differences compared to aqueous conditions.
  • - The research validates analytical techniques in nonaqueous environments and successfully quantifies cysteine levels in ovalbumin, emphasizing the practical applications of thiol-disulfide exchange chromophores.

Article Abstract

A careful analysis of two (thiol-disulfide exchange) thiol quantification chromophores' behavior (Ellman's reagent and Aldrithiol-4) in nonaqueous solvents is presented. A wide range of kinetic profiles and response factors were measured to exhibit a large variance for nonaqueous systems. We report several robust benchtop and room-temperature methods using different organic solvents compared to aqueous conditions. Validation of analytical analyses in nonaqueous systems and quantification of the cysteine content of ovalbumin are also presented. This work serves as a treatise on the utilization of thiol-disulfide exchange chromophores under nonaqueous conditions for the quantification of thiols.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10018523PMC
http://dx.doi.org/10.1021/acsomega.2c07792DOI Listing

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