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http://dx.doi.org/10.15230/SCSK.2014.40.1.37

Simultaneous Analysis of Antimicrobial Three Straight Chain 1,2-alkanediols in Cosmetics by Gas Chromatography  

Lee, Hoo Seob (Quality Assurance Team, Hanbul Cosmetics Co. Ltd.)
Lee, Sang Hun (Quality Assurance Team, Hanbul Cosmetics Co. Ltd.)
Kim, Eun Juk (Quality Assurance Team, Hanbul Cosmetics Co. Ltd.)
Chung, Cheol Hee (Quality Assurance Team, Hanbul Cosmetics Co. Ltd.)
Pyo, Hyeong Bae (Quality Assurance Team, Hanbul Cosmetics Co. Ltd.)
Publication Information
Journal of the Society of Cosmetic Scientists of Korea / v.40, no.1, 2014 , pp. 37-44 More about this Journal
Abstract
Preservatives such as paraben, phenoxyethanol, and chlorphene are commonly used in cosmetics thanks to cheap price and good antiseptic effect. Recently, consumers' concerns about their possible toxicity and skin irritation forced them to be replaced with straight 1,2-alkanediols. However, as the alkanediols may also irritate skin, limited amount of them should be used in cosmetics. Three 1,2-alkanediols including 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol in cosmetics were analyzed simultaneously by gas chromatogrphy with flame ionization detector. As a result of method validation, the specificity was confirmed by the calibration curves of 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol showing good linearity correlation coefficient of above 0.999 over the concentration range of $100{\sim}1,200{\mu}g/g$. The limit of detection (LOD) and quantification (LOQ) of 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol were 31, 40, and $19{\mu}g/g$ and 98, 108, and $57{\mu}g/g$, respectively. The precision (Repeatability) of the amount in cosmetics showed less than 2.0%. Relative Standard Deviation (% RSD) and the Accuracy (% recovery) of the amount in cosmetics showed 99.3 ~ 103.3, 99.4 ~ 106.7, 97.5 ~ 107.3% respectively. As a result, simultaneous analysis of antimicrobial three 1,2-alkanediols in cosmetics were possible. This method can be utilized in accurate quantitative analysis of 1,2-alkanediols in cosmetics.
Keywords
gas chromatography; pentanediol; octanediol; hexanediol; alkanediol;
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