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  • Identification of some abnormal metabolites in psoriatic nail using gas chromatography--mass spectrometry.

Identification of some abnormal metabolites in psoriatic nail using gas chromatography--mass spectrometry.

Journal of chromatography (1980-12-12)
K Maeda, S Kawaguchi, T Niwa, T Ohki, K Kobayashi
ABSTRACT

A gas chromatographic--mass spectrometric analysis was used to separate and identify abnormal compounds in the nail of psoriatic patients. The nail was extracted with heated ethanol, and the extract was analyzed with and without trimethylsilylation. Tetradecanoic acid octadecyl ester, hexadecanoic acid octadecyl ester and octadecanoic acid octadecyl ester were first identified in the psoriatic nail, but were not detected in normal nail.

MATERIALS
Product Number
Brand
Product Description

Supelco
Stearyl stearate, analytical standard
Sigma-Aldrich
Stearyl palmitate, ≥99%
Sigma-Aldrich
Stearyl stearate, ≥98.0% (GC)