general the esters were examined by various t. 1. c. techniques prior to GLC analysis.Quantitative analysis was undertaken by GLC using packed columns coated with diethylene glycol succinate (DEGS, 15% on chromosorb W, 45-60 mesh) and with silicone (SE 30, 2Vo). Identification of each acid was made by comparing its retention time with that of a reference sample and peak areas were calculated by triangulation method.A c k n o w l e d g m e n t s We wish to thank Prof. W . Rahman (Head, Department of Chemistry) and Dr. G. S. Sidhu (Director, Regional Research Laboratory, Hyderabad) for providing facilities; H. L. Yadav for seed collection; CSIR and ICAR (Govt. of India) for financial support. Die Einfltisse der Lllslihkeit, des HLB-Wertes und ausgewlhlter rheologischer Parameter auf die Freisetzung von Salicylsiture aus Salbenschichten wurden untersucht. Einfache und multifaktorielle Korrelationsrerhnung zeigen, da5 die Lllslichkeit von Salicylslure in der Salbenschicht der wichtigste Faktor ist, da5 rheologische Parameter nur beim Vergleich chemisch sehr lhnlicher Salben einen nachweisbaren Einflu5 ausiiben, d d der HLB-Wart nicht und die Grenzfllchenspannung Salbe/Wasser nicht von gro5er Bedeutung sind.
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