Method for quick characterisation of alkyl polyglycosides

Details Method for quick characterisation of alkyl polyglycosides Method for quick characterisation of alkyl polyglycosides

G - Physics

01

N

G01N 31/16 (2006.01) G01N 33/50 (2006.01)

Patent

CA 2106247

ABSTRACT The invention relates to a new method for quick characterisation of alkyl polyglycosides of the formula R-O-Zn in which R represents a linear or branched, saturated or unsaturated alkyl radical having 8 to 20 carbon atoms and Zn represents an (oligo)glycosyl radical having on average n = 1 to 5 hexose and/or pentose units, or mixtures thereof. According to the method, the alkyl polyglycoside is titrated in aqueous solution with an agent at a specified temperature until clarification or clouding occurs, or the turbidity point is determined after addition of an agent. According to one preferred embodiment, surfactants or mixtures thereof are used as the agents. The alkyl polyglycoside may be characterised, for example, by the titre of the agent at a specified temperature or the consumed volume of the titrating agent of a specified concentration. These characteristics are very sensitive to changes in the structure of alkyl polyglycosides, such as the degree of glycosidation or the alkyl chain length.

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