Sentence examples for ppm and three from inspiring English sources

In the first experiment, a factorial experiment based on a completely randomized design with 15 treatments including five different NS concentrations (0, 50, 100, 150 and 200 ppm) and three soaking time of explants (3, 5 and 7 min) with five replications was conducted.

At 3.2 M urea, we observe a major resonance at −47.2 ppm, and three smaller resonances (−43.6, −46, and −47 ppm).

The solution H NMR spectrum show three singlets for the xylyl CH groups at δ = 6.91, 8.03 and 8.08 ppm and three multiplets for the isopropoxo CH groups at δ = 5.07, 5.22 and 5.66 ppm.

By varying the three gas flows (overall flow 4 L min−1) two different NO2 concentrations (250 and 500 ppm) and three different O2 concentrations (0, 50, and 75%) could be achieved.

In a full factorial design we studied how higher T (2, 4 and 6 °C) elevated [CO2] (525 and 700 ppm) and five different rainfall scenarios affected wheat yield and grain protein.

1H NMR analyses confirmed that the oxirane ring (–CH O CH–) of MEOA at 2.92 3.12 ppm and four signals of methane (–CHCH–) was at 5.38 5.49 ppm while the 13C NMR showed the oxirane ring (–C O C–) at 54.59 57.29 ppm and the olefinic carbons at 124.02 132.89 ppm.

Lambs (77.4 kg BW, n=24) were fed a total mixed ration (12.1 13.6% CP) with two levels of l-carnitine (0 or 250 ppm) and two levels of NPN (urea contributing 0 or 50% of total dietary N) for a 50-day period.

We discard 53 compounds that contain deuterium, and 43 compounds that have parent mass accuracy worse than 10 ppm and five compounds with ion mass above 1000 Da.

In addition, the 1H-NMR shows a singlet signal of CH-3 at δ 8.60 ppm and two doublet signals at δ 5.71 5.61 ppm corresponding to the two protons of methylene group which indicates that they are not magnetically equivalent.

This assignment is further supported by the observation of 2JC-H and 3JC-H couplings between the olefinic proton (1H = 5.47 and 5.50 ppm) and four aliphatic 13C resonances (Fig. 9c, 33.2, 38.5, 46.9 and 49.7 ppm).

As expected, one aliphatic carbon at 1.93 ppm and four aromatic carbons peaks at 128.31, 130.50, 133.37, and 136.38 ppm were observed in the 13C{1H} NMR (100.61 MHz) spectrum.