Procedures for the synthesis and purification of two 14C-labeled alkyl polyoxyethylene detergent preparations are described. One of the preparations consisted mainly of [14C]dodecyloctaoxyethylene ether, the other consisted mainly of [14C] octylhexaoxyethylene ether, with critical micellar concentrations of approximately 50 microM and 10 mM, respectively. Condensation of alkyl bromides with fra...

Healthy adult male albino rats were subjected to inhalation of increasing doses of detergent (dioctyl sodium sulfo-succinate) aerosol ranging from 100 mg to 500 mg. Administration of 500 mg of detergent aerosol resulted in peribronchial and focal alveolar oedema in 3 out of 5 animals. The lungs of control animals which were subjected to inhalation of vehicle aerosol (ethanol and saline) did not...

Three employees from two different detergent companies were investigated for occupational asthma, using skin prick tests, serum specific IgE, and specific bronchial challenge. Two were challenged with lipase and one with cellulase. All three cases had immunological evidence of sensitisation to the detergent enzymes with which they worked. Bronchial challenge in each provoked a reproducible dual...

the risks of transmitting viral infection by blood and plasma-derived products have long been known and still remain an area of concern. in this study, in the process of purifying human factor vii from prothrombin complex, sid treatment using tri-n-butyl phosphate and tween 80 was employed and its capability and efficacy was studied. the results indicated that the process did not affect the bio...

commercial detergents, in spite of their various names and marks, are used to remove foreign matter (dirt) from substrate. following removal of dirt from the surface, it is necessary to prevent redeposition, so the detergent must have supending power. in this experimental work, a simple method has been developed to evaluate the cleaning power of commercial detergents. the method, showing the ch...