If a mixture of ions is present, some of the flame colours may not be clearly visible. For example, the yellow colour from sodium ions is very intense and tends to hide the paler lilac colour from ...

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, ...

(Nanowerk News) A new study published in Chemosensors ("All-Solid-State Potentiometric Sensor Based on Graphene Oxide as Ion-to-Electron Transducer for Nitrate Detection in Water Samples") introduces ...

Nitrate, the most oxidized form of nitrogen, is regulated to protect people and animals from harmful levels as there is a large over abundance due to anthropogenic factors. Widespread field testing ...