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- E-ISSN 2288-8985
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- P-ISSN1225-0163
- E-ISSN2288-8985
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Article Detail
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Comparative analysis of glycerin in cosmetics by LC/MS and <sup>1</sup>H NMR
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2007, v.20 no.5, pp.400-405
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(2007). Comparative analysis of glycerin in cosmetics by LC/MS and <sup>1</sup>H NMR. Analytical Science and Technology, 20(5), 400-405.
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Abstract
The comparative analysis of glycerin in cosmetic samples was carried out by LC/MS and <TEX>$^1H$</TEX> NMR spectrometry. For the LC/MS analysis, aqueous solution was controlled in strong basic condition with sodium hydroxide, and benzoyl chloride was added to the solution for the derivatization of glycerin. The derivative was extracted using pentane and analyzed by the LC/MS. For the <TEX>$^1H$</TEX> NMR analysis, sample was directly dissolved in <TEX>$D_2O$</TEX> solvent without pretreatment. The quantitative analysis of glycerin was done by <TEX>$^1H$</TEX> NMR ERETIC method. The analysis results of LC/MS and <TEX>$^1H$</TEX> NMR showed that the calibration curves were a good linearity with <TEX>$r^2
- keywords
- Glycerin, LC/MS, <TEX>$^1H$</TEX> NMR, ERETIC
Reference
1
I. L. Mattos, (1995) Analyst, 120, 179-182 (1995).,
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