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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Nilsson, Ulrika Berglund, Naghmeh Lindahl, Fredrik Axelsson, Sara Redeby, Theres Lassen, Pia Karlberg, Ann-Therese |
| Description | Country affiliation: Sweden Author Affiliation: Nilsson U ( Department of Analytical Chemistry, Stockholm University, Stockholm, Sweden. ulrika.nilsson@anchem.su.se) |
| Abstract | A new method, involving SPE and HPLC/UV diode-array detection (DAD), was developed for the quantification of colophonium components in different consumer products, such as cosmetics. Colophonium is a common cause of contact dermatitis since its components can oxidize into allergens on exposure to air. Three different resin acids were used as markers for native and oxidized colophonium, abietic acid (AbA), dehydroabietic acid (DeA), and 7-oxodehydroabietic acid (7-O-DeA). The SPE method, utilizing a mixed-mode hydrophobic and anion exchange retention mechanism, was shown to yield very clean extracts. The use of a urea-embedded C(12) HPLC stationary phase improved the separation of the resin acids compared to common C(18). Concentrations higher than 2 mg/g of both AbA and DeA were detected in wax strips. In this product also 7-O-DeA, a marker for oxidized colophonium, was detected at a level of 28 microg/g. The LODs were in the range of 7-19 microg/g and the LOQs 22-56 microg/g. The method is simple to use and can be applied on many types of technical products, not only cosmetics. For the first time, a method for technical products was developed, which separates AbA from pimaric acid. |
| File Format | HTM / HTML |
| ISSN | 16159306 |
| Issue Number | 15 |
| Volume Number | 31 |
| e-ISSN | 16159314 |
| Journal | Journal of Separation Science |
| Language | English |
| Publisher | Wiley-VCH |
| Publisher Date | 2008-08-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Analytical Discipline Chemistry Abscisic Acid Analysis Diterpenes, Abietane Ethanolamines Resins, Plant Chemistry Solid Phase Extraction Methods Chromatography, High Pressure Liquid Instrumentation Chemical Synthesis Molecular Conformation Sensitivity And Specificity Spectrophotometry, Ultraviolet Stereoisomerism Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Analytical Chemistry Filtration and Separation |
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