The phrase "atom percent" is correct and usable in written English.
It is typically used in scientific contexts, particularly in chemistry and materials science, to express the concentration of an element in a compound or mixture based on the number of atoms.
Example: "The alloy contains 5 atom percent of copper, which enhances its electrical conductivity."
Alternatives: "atomic percent" or "mole percent".
The regressions NH3 = 23.6183 × e(0.0104×NI) and 15N-NH3 = −0.00062 × NI + 0.1219 were obtained in order to calculate rumen NH3 concentrations (mg/l) and 15N-NH3 (atom percent excess), respectively, as a function of N intake (NI, g/day).
With increasing the working power of ion source, the atom percent of N and the mean absorbency in visible range, as well as the band gap, decreased and increased, respectively.
With the working power of ion source in 150 W, the atom percent of N, mean absorbency in visible range, and band gap could reach at the optimal value, which was 22.9 at.%, 44.6%, and 2.81 eV, respectively.
Kinetic parametes were determined for the oxygen evolution reaction on 50 50 atom percent alloys of RuIr, RuPt, and IrPt and compared with results obtained using ruthenium, iridium, platinum, and RuO2/TiO2 electrodes.
With these results, one conclusion could be deduced that the composition and optical properties of N TiO2 films could be influenced by the N atom percent and chemical bond structure of Ti, which in turn was controlled by the working power of N ion source.
The atom percent of 13C and the carbon content of the coral host and symbionts were determined with a mass spectrometer (Delta Plus, Thermofisher Scientific, Bremen, Germany) coupled via a type III interface with a C/N analyzer (Flash EA, Thermofisher Scientific).
The electrochemical analysis suggests that the as-produced sub-10-nm GNR with 31.4 atomic percent (atom %) oxygen-containing functional groups showed the highest capacity of 490.4 mAh g−1 after 100 cycles.
Captured individuals were carefully checked for fleas, weighed to 0.01 g and injected intraperitoneally with 0.150 ml of DLW containing 97 atoms percent 18O (Rotem Industries, Beer Sheva, Israel) and 100 µCi tritium per ml (New England Nuclear, Boston, MA).
Each measurement period included a bolus injection of 1-C-glutamine (3 mg/kg bodyweight; 99 atoms percent excess (APE) and ring-H5-phenylalanine (0.3 mg/kg body weight; 99 APE), followed by frequent plasma sampling during 90 minutes [ 12].
Ala-Gln: Alanyl-glutamine; APE: atoms percent excess; AUC: area under the curve; BMI: body mass index; EDTA: ethylenediaminetetraacetic acid; GC-MS: gas chromatography-mass spectrometry; Gln: glutamine; MTBSTFA: N-Methyl-N-tert-butyldimethylsilyltrifluoroacetamide; Phe: phenylalanine; Ra: rate of appearance; SOFA: sequential organ failure assessment.
Note that all quantities reported as percent in this study refer to mol- or atom-percent.
