ISSN:
1612-1112
Keywords:
Reverse phase chromatography
;
Sorbitan fatty acid esters
;
Polyethylene glycol
;
T-MAZ oligomers
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary The method for determination of T-MAZ ethoxylated sorbitan fatty acid esters is described. This work demonstrates that with a less retentive C8 alkyl bonded phase packing, reverse phase chromatography can be used to analyze nonionic polymer mixtures with a molecular weight range of 900 to 1500. Using a gradient elution, a complete separation of T-MAZ oligomers was achieved, comparable to that obtained by Supercritical Fluid Chromatography (SFC). Isocratic elution is used to quantify T-MAZ and the detection limit is 321 ppm, which is acceptable for polymers with high molecular weights and no UV-absorbing chromophores. This work also shows the comparison of the separations of T-MAZ using gel permeation chromatography and reverse phase chromatography.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02269777
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