Sentence examples for ppm and two from inspiring English sources

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.

The 1H NMR date of the isolate showed the presence of five sharp singlet methyl groups (0.78, 0.81, 0.92. 0.98 and 1.08 ppm) and two doublet methyl groups (0.86 and 0.94 ppm) in the region of higher field, characteristic of ursane-type triterpenes skeleton [29].

The effect of injection brine salinity on the displacement efficiency of low water salinity flooding was investigated using sea water at 35,000 ppm, and two field injection waters, namely, Um-Eradhuma (UER) at 171,585 ppm and simsima (SIM) at 243,155 ppm.

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.

The error tolerances for precursor masses and fragment masses were set as 15 ppm and two unknown PTMs were allowed.

Precursors selected for MS/MS fragmentation were corrected for errors in monoisotopic peak assignment, and tandem MS spectra were searched using the Sequest algorithm, with mass tolerance set to 25 ppm and two missed cleavages allowed.

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.

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.

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.

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).