The phrase "amount of active substance" is correct and usable in written English.
It can be used in contexts related to chemistry, pharmaceuticals, or any field where the quantity of a specific active ingredient is relevant.
Example: "The amount of active substance in this medication is crucial for its effectiveness."
Alternatives: "quantity of active ingredient" or "level of active compound".
The used daily dose (UDD), describing the amount of active substance as administered by farmers to the animals in mg/kg, was calculated by dividing the amount of antimicrobial compound administered (mg) by the number of chicken times the average weight at treatment to define a standard treated chicken (Timmerman et al. 2006).
The guidelines require determination of the deposition rate and the use of a breath simulator for determination of the active substance delivery rate and total amount of active substance delivered.
The rows represented the amount of active substance of the antibiotics that was tested against Haemophilus; the antibiotic combination of ampicillin and sulbactam had the highest resistance rate, while ciprofloxacin had no resistance profile when compared with the other antibiotic substances.
TiO2 is an inert support which mainly provides the dispersing surface for the active component, by loading a certain amount of active substances on the mesoporous TiO2, the catalytic performance could be potentially improved.
The differences between the original amounts of active substances and the amounts detected in the runoff samples and the test specimens are high.
The amounts of active substances detected in runoff water during the whole periods of the experiments differed between 3.4 and 5.4 % of the original amount of diuron, between 5.3 and 9.9 % of the original amount of OIT, and between 1.0 and 1.3 % of the original amount of terbutryn during 18 25 months of outdoor exposure.
However, the amount of EMLA® used (50 g) is a dosage of active substance per cm well within the recommendations to achieve cutaneous anesthesia.
The mixed samples consisted of equal masses of active substance and each excipient.
Equal proportion of active substance and excipients (w/w) was utilized in the interaction study.
