Sentence examples for min concentrations from inspiring English sources

N min concentrations in samples were measured.

Block letters: difference in total N min concentrations; small letters: difference in NH4 + N concentrations.

Treatments included increasing bulk soil N min concentrations: 0, 5, 20 and 60 mg N kg−1 soil DM (NH4NO3).

After stabilization of plasma glucose and equilibration of [3H]glucose tracer, GLP-1 was given intravenously for 60 min. Concentrations of insulin, C-peptide, and glucagon were similar before and during the GLP-1 infusion (115 +/- 14 vs. 113 +/- 11 pM; 0.153 +/- 0.029 vs. 0.156 +/- 0.026 nM; and 64.7 +/- 11.5 vs. 65.8 +/- 13.8 ng/l, respectively).

After an incubation step at 60 °C in a water bath for 10 min, concentrations of ammonia were determined photometrically at 546 nm in a spectrometer (DU 640, Beckman Coulter GmbH, Krefeld, Germany) using a NH4Cl standard solution (5 mM).

Batch experiments were conducted to determine the adsorption properties at different contact times (5 30 min), concentrations (0.1 10 mg/L), amounts of adsorbents (0.1 0.6 g), and in a range of pH 2 7.

Optimized parameters were radiation power of 400 W, radiation time of 8 min, concentration of phosphoric acid of 50% by volume and impregnation time of 20 h, respectively.

Tested factors were contact time (10, 20 and 30 min), concentration of AEW (100, 200 and 300 mg NaOH/L), temperature (30, 40 and 50 °C), and surface type (304-2B SSP with or without electropolishing), using sixteen treatments with two replicates.

The optimized conditions were established using a factorial design 23, obtaining the following digestion conditions as the most adequate: digestion time (20 min), concentration of HNO3 (8 mol L− 1) and H2O2 volume (2.5 mL).

Statistical design was used to optimize the studied extraction parameters: temperature (80 120 °C); sample amount (1 3 g); extraction time (6 11 min); concentration of formic acid in the extraction solvent (0 5 vol.%).

The experiments were done by varying the contact time (0 60 min), concentration of dye solution (20 50 mg/L) and amount of adsorbent (0.375 1 g/L).