Sentence examples for traces of acid from inspiring English sources

Mild chemicals were applied and rinsed away to diminish the stain, remove traces of acid from the paper and return it to its original tone, Mr. Krawitz said.

The resultant black slurry was carefully washed with deionized water and 0.1 N sodium bicarbonate solution to remove the traces of acid.

However, for involatile polar analytes it was necessary to add traces of acid or salt to the carrier stream to obtain a linear response.

The solid was filtered off, washed with ice-cold water to remove the traces of acid and dried to yield 3. Yield: 53 g, 95%; m.p.150°C 151-152°C 151-152°C).

The solid was filtered, washed separately with ice-cold water to remove the traces of acid and dried to yield 2. Yield: 55 g, 79%; m.p.: 114°C 115-116°C 115-116°C).

To get rid of traces of acid, the residue was taken up in Ethyl acetate (EtOAc), subsequently washed with saturated sodium bicarbonate and brine, dried (magnesium sulfate), filtered and concentrated under reduced pressure.

Similar to other red dyes obtained from scale insects, the red coloring is derived from carminic acid with traces of kermesic acid.

In addition, in some combinations of strains and tryptophan we detected traces of gibberellic acid (GA3) and jasmonic acid (JA).

Whey powder also contains some traces of organic acids such as lactic acid and citric acid (Tsakali 2010).

The BA-rich fraction also contained low content of oleanolic acid (Rt: 12.4 ± 0.1 min) and traces of ursolic acid (Rt: 12.7 ± 0.1 min).

This was repeated, then nitric acid was added and the sample taken to dryness to remove any traces of hydrofluoric acid.