Sentence examples for ppm was added from inspiring English sources

To minimize oxidation, ascorbate (100 ppm) was added to the HPLC eluant, and the resulting HPLC-purified 11C MET was stable in the final formulation solution without noticeable degradation for up to 1 h after the end of synthesis.

For inhibition property on barium sulfate (Fig. 5b), when the optimal dosage at 70 °C (40 ppm) was added, the nearly identical inhibition rate (96%%) can be obtained at 80 and 90 °C.

When needed, nitric oxide (NO) (∼40 ppm) was added immediately before testing.

Lead acetate (1,500 ppm) was added to their diets during this period.

The anti-oxidant ethoxyquin (300 ppm) was added to stabilise the final product.

An internal standard (3-hexanone, 1 ppm) was added to juice samples.

Different amounts of nitrogen from 1000 to 14,000 wt ppm were added into the Ti48Zr20Nb12Cu5Be15 bulk metallic glass composites.

When small amounts of N2O (300 ppm, 1000 ppm) were added to the feed, yield and selectivity to H2 and CO increased.

From the CA-V-1A compound, which is the one with the highest protein adsorption capacity, the same formulation was used to synthesize compound P-1000 in which a solution of 1000 ppm is added to MHH during preparation.

The present contribution shows that the mechanism is the same as that evidenced recently in Al Zn alloys, when small amounts of Cr (1000 ppm) are added to the melt (Kurtuldu et al., 2013).

In this work, the corrosion process of AISI 1020 in crude oil, to which different amounts of sea water (0.5 and 4.0% v/v), naphthenic acid (500 and 3000 ppm), and H2S (50 and 1000 ppm) were added, was investigated using electrochemical noise at open circuit potential.