Summary
C1–C20 carboxylic acids have been esterified in aqueous solutions with i-butanol. Gas chromatographic analyses have been performed from a single chromatogram. It has been established that esterification in the concentration range of [H2O]/[i-BuOH]=0.01–10.3 can be utilized for the quantitative determination of these carboxylic acids.
The presence of water does not interfere in the range of [H2O]/[i-BuOH]=0.01–1.03.
In the cases of [H2O]/[i-BuOH]>1.03, anhydrous sodium sulfate has been used for binding the water, in an amount of [Na2SO4]anh./[H2O]≥0.2.
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Molnár-Perl, I., Szakács-Pintér, M. Gas chromatographic analysis of C1–C20 carboxylic acids esterified in aqueous solutions as isobutyl esters. Chromatographia 17, 493–500 (1983). https://doi.org/10.1007/BF02263272
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DOI: https://doi.org/10.1007/BF02263272