"required quantity" is a correct and usable phrase in written English.
It is used when referring to an amount of something that must be met for some purpose. For example: "We need to order enough materials to meet the required quantity for the project."
Based on the results, the minimum required quantity of target DNA for multiplex PCR amplification was 1 ng/μL and for color and absorption alteration of solution in colorimetric assay was 20 ng/μL.
After the complete dissolution, required quantity of AgNPs was added and kept in the magnetic stirrer to obtain homogenous solution.
Then, the alkaline solution of required quantity was added and mixed properly by hand covered with gloves to eliminate clustering.
Stock solution of Cu II) (500 mg L−1) was prepared by dissolving required quantity of CuSO4·5H2O (analytical reagent grade) in double-distilled water.
The synthetic stock solutions of metals ions are prepared by dissolving required quantity of analytical grade of nitrate salts of Cu2+, Cd2+, and Pb2+ ions in deionized water.
The production data (production capacity, the workforce required, quantity of raw materials needed), production hours, amount of product sold and other parameters which had been defined are supplied to the developed software.
The numerical calculation steps are as follows: Step 1: As far as such an engineering site, required quantity of air current is calculated, and the range of dust removal fan is ensured, and the auxiliary fan is chosen.
Stock solutions (1,000 mg/dm3) of nickel, chromium and zinc were prepared by dissolving required quantity of Ni SO4 2·6H2O, Cr2 SO4 3·12 H2O and ZnSO4·7 H2O in (1,000 cm3) deionized water (pH 7).
Notice that the compressor in post-contingency compressed more gas than in pre-contingency in order to increase the injected gas in pipeline 3 4 and to be able to deliver the required quantity of gas in node 4 by U2. 2) All the gas in node 7 demanded from U3 was fed with line packed gas (the well W2 was not producing).
Notice that the compressor in post-contingency compressed more gas than in pre-contingency in order to increase the injected gas in pipeline 3 4 and to be able to deliver the required quantity of gas in node 4 by U2.
The second term refers to the minimum required quantity of cells with material m.
