The phrase "and concentrations using the" is grammatically correct and can be used in written English.
It can be used in contexts where you are discussing measurements or analyses that involve concentrations of substances or elements.
Example: "The study focused on the effects of various chemicals and concentrations using the new analytical method."
Alternatives: "and levels utilizing the" or "and amounts employing the".
What Gill most probably had in mind was the striking "poverty" of the surface of Gubaidulina's music, the way she generates enormous energy and concentration using the frailest wisps of sound, breath-like sighs and moans, scraps of Russian Orthodox chant, gigantic but extremely simple unisons, shudders and tremblings like the merest moments of tension from a film score, the simplest common chords.
The RNA was analyzed for quality and concentration using the Agilent Technologies 2100 Bioanalyzer.
The bacterial gDNA was checked for purity and concentration, using the NanoDrop 2000 Spectrophotometer (Thermo Scientific, Wilmington, DE).
Biotin-labeled cRNA was synthesized by means of Affymetrix One Cycle Target Labeling and Control Reagents Kit and subsequently controlled for quality and concentration using the Agilent 2100 bioanalyzer system.
We tested correlations between total mass concentrations of CAPs, gaseous pollutants, and endotoxin and glucan concentrations using the nonparametric Spearman rank order correlation.
We measured arsenic, cadmium, lead, manganese, and nickel concentrations using the Total Quant method, and chromium concentrations using the Dynamic Reaction Cell (DRC) method with ammonia (De Palma et al. 2008).
Both free and bioavailable testosterone concentrations can also be calculated from total testosterone, albumin, and SHBG concentrations using the law of mass action equations.
The results suggest that the measurement of salivary E1, E2, E3, P, and T concentrations using the proposed method can evaluate the increased risk of various disorders.
Serum leptin concentrations were measured using enzyme-linked immunoassays (Quantikine R&D Systems, Minneapolis, MN, USA) and adiponectin concentrations using the ELISA kit from B-Bridge International (San Jose, CA, USA).
AUCs were calculated for the observed and predicted concentrations using the trapezoidal method.
