Sentence examples for ppm were calculated from inspiring English sources

The bioassay of essential oil was performed, LC at 50 or 90% with values of 11.36 or 17.54 ppm, were calculated using probit analysis.

The signal-to-noise ratio of 19, 61, and 70 together with the limits of detection of 0.75 ppm, 0.42 and 0.33 ppm were calculated for the condenser microphone, the MLG membrane, and the MLG cantilever, respectively.

Because Sr/Ca and Ba/Ca typically vary inversely across salinity gradients, ratios of Sr/Ba (ppm) were calculated to maximize detection of movement through mesohaline habitats.

Weighted average costs per patient month (ppm) were calculated to account for differences in patient lengths of follow-up.

The spiking levels of 25 500 μg g−1 (ppm) were calculated based on the 0.4 g of product which was extracted.

Mean peak H2 levels (ppm), the time to peak H2 (min), and the time to reach the cut-off value of 20 ppm were calculated [ 20, 21].

The chemical shift differences in ppm is calculated as (ΔδH/2 + ΔδN/5)^0.5.

The amount of oxygen dissolved in the water during the rearing period, recorded in mg/L or ppm, was calculated based on the average of daily measurements.

Thus, a subacute NAEC of 10 ppm was calculated which is the same as the NOAEC of the subchronic study, and therefore, time extrapolation is not necessary (OEL Documentation "hydrogen sulfide," TRGS 900, http://www.baua.de/de/Themen-von-A-Z/Gefahrstoffe/TRGS/pdf/900/900-schwefelwasserstoff.pdf?__blob=publicationFile&v=2).

The concentration of NMR unknown compounds (named according to the form of the resonance, S for singlet, D for doublet, M for multiplet, and its frequency in ppm) was calculated on the assumption that the measured resonance corresponded to one proton and using an arbitrary molecular weight of 100 Da.

When the initial isotope enrichment of the body water (H d or O d, ppm) was calculated by the intercept method, we used the following equation (Król and Speakman, 1999): where O init and H init are the initial isotope enrichments of body water pool (H or O, ppm); k d and k o are the isotope turnover rate between the initial and final samples (h−1, see below).