Unilever Laboratory Experiments
This series of guides to experiments was published by Unilever between 1964 and 1973. The experiments were adapted from procedures used in Unilever laboratories at the time to show the relevance of basic and applied research in the development and testing of new consumer products. The experiments relate to topics in advanced level chemistry courses. In many of the experiments the procedures are challenging. In some instances the methods could not be followed today without adaptation because of the hazardous chemicals involved.
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N-terminal Analysis of a Dipeptide
This Unilever Laboratory Experiment, published in 1967, describes a procedure based on the use of 1 -fluoro 2,4 dinitrophenylation (FDNB) as developed by Sanger during his studies on the structure of the protein hormone insulin. In the experiment, two dipeptides are used which contain the same two amino acids but...
Thin Layer Chromatography
This Unilever Laboratory Experiment, published in 1970, describes the analysis of fluorescers from soap and soapless detergent powders. The procedure describes how the fluorescers can be extracted from the product, separated by thin layer chromatography techniques, and made visible by exposing the chromatograms to...
Determination of Vitamin C in Foodstuffs
This Unilever Laboratory Experiment, published in 1973, describes two methods for determining the vitamin C in foods. The leaflet describes the estimation of vitamin C (L-ascorbic acid) in foodstuffs, after extraction with metaphosphoric acid, by titration with a standardized dye, 2,6 dichlorophenolindophenol,...
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