Unlike the other tests described on this page, the test for carbonate ions works whatever acid is added. Explain why, in a test for sulfate ions, the sample is acidified with hydrochloric acid first.

The dry conditions of summer 2020 has produced an abundance of high nitrate forages. These hays, crop residues (stover) and even weeds with high nitrates leave many producers utilizing Extension and ...

Nitrate ion is a common pollutant produced by municipal waste treatment systems, agricultural run-offs, and livestock waste. Although an essential component of fertilizers and necessary for growing ...

A cleaned, moistened flame test wire is dipped into a solid sample of the compound. It is then put into the edge of a blue Bunsen flame. The flame colour produced indicates which metal ion is present ...

Researchers have developed a biosensor 1 capable of simultaneously detecting very low concentrations of nitrate and nitrite ions (nitric oxide metabolites) in human plasma, blood and saliva samples, ...

Learning from nature, scientists have found a catalyst that efficiently transforms nitrate into nitrite -- an environmentally important reaction -- without requiring high temperature or acidity, and ...

Learning from nature, scientists from the Center for Sustainable Resource Science in Japan and the Korean Basic Science Institute (KBSI) have found a catalyst that efficiently transforms nitrate into ...