The phrase "about equal amounts of the" is correct and usable in written English.
It can be used when discussing quantities that are similar or nearly the same, often in contexts involving measurements or comparisons.
Example: "The recipe calls for about equal amounts of the flour and sugar to achieve the desired sweetness."
Alternatives: "approximately the same quantities of" or "roughly equal portions of".
About equal amounts of H1 histones were loaded, as monitored by detection of the subtype H1.2 which is considered as one of the basal H1 subtypes detected in all cell types investigated so far [ 21, 22].
Felipe's clothing contained the DNA, in about equal amounts, of two men and a woman; Marcela's had DNA from either a man and a woman or two women.
Insular lizards spent about equal amounts of time under different levels of radiation while mainland lizards spent 68% of the time directly under the light bulb.
The moon's low density, which is 1.5 times that of water, is consistent with a bulk composition of about equal amounts of ice and rock.
They are some 82 feet (25 metres) thick and consist of about equal amounts of stream-laid detrital sediment and aeolian (wind-worked) tuff.
Most people have about equal amounts of two types of fibers -- slow twitch fibers, which are best for endurance events like marathons, and fast twitch fibers, which are best for sprints.
About equal amounts of transcripts were down- and up-regulated by low temperatures.
To enlarge and widen the range of datasets, we added 7 balanced datasets (i.e., datasets with about equal amount of active and inactive class values).
Research over the last 15 20 years has established that the human liver and kidneys provide about equal amounts of glucose via gluconeogenesis in the post-absorptive state (Table 2).
To study the influence of the particle size, the Bac-1 cells were incubated with different sized gold colloids at concentrations yielding about equal amounts of gold per volume in the incubation suspension.
