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Library Catalogue

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    Union Catalogue of Agricultural Libraries in the Netherlands

    The WUR Library Catalogue contains bibliographic data on books and periodicals held by the libraries of Wageningen University and Research Centre and some 15 associated libraries. Holding data are added to each record.

    Subjects covered include Agrotechnology, Food and Food Production, Plant and Animal Sciences, Soil Science, Geo-information, Landscape and Spatial Planning, Water and Climate, Ecosystem Studies, Economics and Society.

    The joint collections of the participating libraries cover a substantial part of the internationally available scientific literature in these disciplines.

    As far as Dutch scientific literature in these fields is concerned, coverage can be considered near 100%, including much of the so-called "grey literature".

    All titles are entered in their original language. Keywords are added to facilitate subject searching.

    The database is updated every day and now contains over 830.000 records.

Record number 104332
Title Analysis of cosmetics with regard to legislation
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[door] D.H. Liem
Author(s) Liem, D.H.
Publisher Wageningen : [s.n.]
Publication year 1976
Description 119 p.
Notes Proefschrift Wageningen
Tutors Pilnik, Prof. Dr. W.
Graduation date 1976-12-10
Dissertation no. 670
Author abstract show abstract
A general picture of toxicological approach and practical aspects of cosmetic safety is described in this thesis. Such considerations are the basis for introducing negative and positive lists of cosmetic ingredients into cosmetic legislation. The first Dutch Cosmetic Act of 1968 already has several of these lists, but no analytical methods were given to control these lists. Therefore a study has been started with the aim to make analytical market surveys of several classes of potentially risk-bearing compounds. The analytical experience gained in the study can be used for the developments of official methods for the Dutch Cosmetic Act. The results of these market surveys can moreover be used as information on the actual use of risk-bearing compounds and will therefore contribute to the establishment of sound and significant cosmetic legislation in the Netherlands.
Eye make-up colours were identified by a set of characteristic reactions. Lipstick colours were identified by wellknown chromategraphic methods. Colour intermediates for the oxidative hair colouring were identified by two-dimensional thin- layer chromatography. The aromatic amines were confirmed by direct gaschromatographic analysis which permitted quantitative determination. A separation of phenolic intermediates by means of gaschromatography is also described. Suntan preparations were analysed for the presence of UV-absorbers, browning agents and local anesthesics. A simple aerosol sampling method, prior to gaschromatographic analysis was developed, thus permitting a total analysis of propellants and solvents in single-phase aerosols within an hour. Hormonal substances were detected in selected samples by chromatographic methods. These chemical findings supported the results of the biological assay for the detection of oestrogenic and androgenic activity of cosmetic products. Finally antimicrobial compounds were analysed in many kinds of cosmetic products, in which they were used for preservation or for its deodorizing, antidandruff or antiseptic actions. The diversity in chemical structure did not allow the development of universal methods, but most of the compounds could be identified and determined by chromatographic methods. Formaldehyde was determined by fluorometry. A study of the stability of formaldehyde releasing substances is presented.

Online full textINTERNET
On paper FORUM ; STACKS ; NN08200,670
FORUM ; STACKS ; NN08202,0670
Keyword(s) (cab) clothing / cosmetics / essential oils / inspection / perfumery / toxic substances / toys / xenobiotics
Categories Toxicology (General)
Publication type PhD thesis
Language English
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