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Discover LudwigSuggestions(5)
"at a concentration" is a correct and usable phrase in written English
You can use it to describe a certain level of intensity or focus. For example, "He studied intently at a concentration level the likes of which I had never seen before."
Exact(60)
They met at a concentration camp.
Tells about his stay at a concentration camp- Dachau.
At a concentration of four-tenths, the drinker collapses into coma.
Other additives which might be used in future operations include hydrochloric acid, typically at a concentration of 0.125% or biocide at a concentration of 0.0005%, which can be used if needed to purify the water used in the process.
Half of all gasoline contains some ethanol, which ordinary cars can burn at a concentration of up to 10percentt.
Music played at a concentration camp may seem odd for a college whose focus is law enforcement.
Permethrin concentrations were determined at a concentration of 100.0 μM.
CTX was detected at a concentration of 50 μg/ml.
Acetoin was added at a concentration of 0.5 g/L.
Maximum inhibition was achieved at a concentration of 60 μM.
Box Behnken design indicated that the optimal culture components for GABA accumulation were: Glu at a concentration of 1.2 mg/ml, PLP at a concentration of 50 μM and CaCl2 at a concentration of 2.5 mM.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com