Gas chromatography of preservatives and antioxidants by trimethylsilylation
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چکیده
منابع مشابه
Separation of preservatives in cosmetic products by micellar electrokinetic chromatography.
This paper describes the methodological optimization and validation of a simple micellar electrokinetic chromatography for the rapid simultaneous separation of 2-methyl-4-isothiazolin-3-one, methylparaben, ethylparaben, propylparaben, and butylparaben. By using a 30 mM phosphate buffer (pH 7.2) containing 30 mM sodium dodecyl sulfate (SDS), an applied voltage of 10 kV and a separation temperatu...
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Disopyramide is determined in serum by gas chromatography with a nitrogen-selective detector, by liquid chromatography, and by gas chromatography--mass spectrometry. Comparable results are obtained with the three techniques, with a within-run and between-run precision of 5 to 10% (coefficient of variation). Least-squares analysis of data on patients' sera, analyzed first by gas chromatography (...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1971
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.20.61