Sentence examples for a part per from inspiring English sources

It contained about half a part per billion.

In the first ten metres, the average concentration would not have exceeded half a part per million.

A part per billion (ppb) level detection has been achieved with the intrinsic sensor design with an active sol gel fiber core as a sensor element.

Active pharmaceutical ingredients (APIs) from medications can enter the environment as trace contaminants, at individual concentrations generally below a part per billion (μg/L).

A wide series of propane and hydrogen flames of varying equivalence ratio have been examined that contain sodium on a part per million by volume scale (ppmv) and chlorine either as a similar trace amount or in excess.

Virtually no known species, even in larval stages, suffers from acute toxicity when exposed to Corexit at half a part per million; very few do at ten times that amount.

Preferential oxidation of CO (PROX) is an important reaction for removing CO to a parts-per-million level from the hydrogen-rich stream.

Pertinent to fossil analysis, the contaminants of the mineral structure are typically on a parts-per-million basis, which makes fluorescence a sensitive analytical tool33.

The IPR is a dimensionless ratio that we report here using a parts-per-million (10 6) modifier.

To determine compliance with a parts per million by volume total organic regulated material or TOC limit, the owner or operator shall use Method 18 or 25A of 40 CFR part 60, appendix A, as applicable.

The PID was equipped with a parts per billion (ppb) sensor with a measurement range of 0.02 -20 parts per million (ppm).