Ethyl cellulose was synthesized successfully in one step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent.
Microbiological media, diluents, rinses and test items must be labeled in such a manner that the full details of preparation and, where applicable, sterilization or depyrogenation are traceable.
Algorithms that incorporate genetic information, such as one for measuring doses of warfarin, a blood-thinner, are often inappropriately calibrated for Africans.