The phrase "a quantity equivalent to" is correct and usable in written English.
It can be used when discussing measurements, values, or amounts that are equal or comparable to one another.
Example: "The total cost of the project is a quantity equivalent to the budget we allocated at the beginning."
Alternatives: "an amount equal to" or "a value matching".
After reaction with TBBPA radicals for 60 min, the content of bromine contained in MWCNTs was 6.84 ±0.12)%, a quantity equivalent to a 501.65(±2.19) mg loading of TBBPA per gram MWCNTs.
A quantity equivalent to a tablet was weighed and transferred into a 100-mL flask, dissolved in 60 mL of the mobile phase, sonicated for 20 min, and then diluted to the final volume with the same mobile phase to yield a concentration of 250 μg mL−1.
pDCs were inoculated with virus in a quantity equivalent to 100 genome-containing virus particles per cell.
Each capillary was coated with CHCs in a quantity equivalent to half a worker, while each microscope slide was coated with the CHC-extract equivalent to 2.5 workers.
To demonstrate that the carrier did not affect the ARPE-19 cells, sterile water, in a quantity equivalent to that of the carrier, was added to a triplicate set of RPE cells.
Second, for each of the 27 RNA samples, a quantity equivalent to the cDNA used in the amplification reactions (i.e. 20 ng of total RNA) was amplified by real-time PCR using primers targeted to alpha-tubulin sequences (table 2).
Jordan is entitled to an annual quantity equivalent to that of Israel, provided however, that Jordan's use will not harm the quantity or quality of the above Israeli uses.
An accurately weighed quantity equivalent to 20 mg ETD was dissolved in 20 mL of methanol and transferred to a 100 mL calibrated flask.
Quantity equivalent to 100 mg of PCZ was weighed from powdered SD filled inside the hard gelatine capsule that was used for the dissolution studies.
Engineers know how to make and deliver electricity at quantities equivalent to a super-tanker flowing into NYC every day.
To estimate copy number, control PCR reactions were carried out in parallel on 50 ng aliquots of chicken genomic DNA with vector plasmid DNA added in quantities equivalent to that of a single-copy gene (1×), a tenfold dilution (0.1×) and a 100-fold dilution (0.01×) as described previously (Sherman et al., 1998).
