Sentence examples for ppm was found from inspiring English sources

Highest tested concentration of arsenite (20 ppm) was found to be detrimental in both IEC and IEC-6.

The maximum removal capacity at equilibrium concentration of 40 ppm was found to be 0.83 mg/g.

In the "aged" electrolyte, a large amount of copper dissolution (up to several hundred ppm) was found.

Results show comparable performance of both approaches where a root-mean-square error of 87 ppm was found.

Also an increase in salinity from 20 to 200,000 ppm was found to decrease the contact angle from 61° to 42°.

The addition of MA into the antibody solution (20 ppm) was found to decrease the incident angle shift sharply because of the inhibition effect of MA.

However, 30 ppm is found to be maximum requirement of inhibitor dosage for 98% scale inhibition through the test temperature.

Overall, the PPM is found to increase total contributions, to be more responsive to changes in induced value, and to be generally more efficient than the VCM.

The higher or lower Mn-doping amount than 11000 ppm is found to have less positive impact on the performance of LiFePO4/C.

However, recent investigations reported on the nanoparticles (e.g., metal oxides and SiO2) with size less than 100 nm and a concentration of 2.0 wt% (20,000 ppm) are found to have negligible abrasive wear function on oil [40, 41].

The total lithium content of seawater is very large and is estimated as 230 billion tonnes, where the element exists at a relatively constant concentration of 0.14 to 0.25 parts per million (ppm), or 25 micromolar; higher concentrations approaching 7 ppm are found near hydrothermal vents.