Sentence examples for A known quantity of from inspiring English sources

A known quantity of finely powdered sample was weighed into a 250 ml conical flask and subjected to sequential cold extraction using methanol and water in the ratio of 1 1 as extraction solvents while stirring at room temperature.

A known quantity of the adsorbent (0.2 g/L) was taken in a stoppered conical flask(100 mL) containing 50 mL aqueous solution of 4-CP and 4-BP.

A known quantity of colony forming units of S. Typhi were inoculated into whole blood.

A known quantity of 2-undecanone was added as an internal standard.

A known quantity of F-fluoride was pipetted into 5 ml plastic vials and the volume was adjusted to 5 ml with water.

Hence, a known quantity of liquid drug formulation can be delivered to the human body.

Then, we simultaneously injected a known quantity of KMnO4 and FeCl2, respectively, into two separate compartments forming the upstream reservoir.

The response (measured as rate of growth) to the unknown amounts of vitamin is compared with that obtained from a known quantity of the pure vitamin.

Ni-P-Ag composite coating was achieved through direct electrolysis by adding a known quantity of the conventionally prepared SNS into Ni-P bath.

This allows calculation of the amount of radium in the solution, if the ionisation chamber has been standardised by a similar operation made with a known quantity of radium.

The procedure involves adding to a substance a known quantity of a radioisotope of the element to be measured and mixing it with the stable isotope of the element.