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Table 1 Overview of the monoisotopic \(\hbox {C}_{17}{:}\hbox {C}_{16}\) (269.25:255.23 m/z) peak integral ratios obtained for SAWN-MS measurements on ethanol extracts taken from the Evolon tissue with different ethanol loading, the gel and the cotton swab after 5 min exposure

From: Solvent-mediated extraction of fatty acids in bilayer oil paint models: a comparative analysis of solvent application methods

Sample

Ratio \(\hbox {C}_{17}{:}\hbox {C}_{16}(\times 10^{-2})\)

Evolon-sq. (5 min)

\(3.2 \pm 0.6\)

Evolon-34% (5 min)

\(1.8 \pm 0.4\)

Evolon-51% (5 min)

\(1.5 \pm 0.2\)

Max Dry gel (5 min)

\(1.7 \pm 0.3\)

Cotton swab (5 min)

\(4.6 \pm 1.5\)

  1. Values are an average of triplicate measurements, standard deviation indicated after ±