Dual determination of nitrite and iron by a single greener sequential injection spectrophotometric system employing a simple single aqueous extract from <i>Areca catechu</i> Linn. serving as a natural reagent
Kraingkrai Ponhong, Watsaka Siriangkhawut, Chang Young Lee, Norio Teshima, Kate Grudpan, Sam-ang Supharoek
Abstract
in water samples were 88 to 104% and 84 to 109%, respectively. The developed method successfully achieved dual determination of nitrite and total iron agreeing at a 95% confidence level with the reference methods of the conventional Griess assay and flame atomic absorption spectrometry (FAAS), respectively. The proposed method utilized locally available material from plants and serves the UN-SDGs.
Topics & Concepts
ReagentChemistryNitriteGriess testDetection limitChromatographyArecaAqueous solutionCatechuStandard additionColorimetryNuclear chemistryNitrateOrganic chemistryNutEngineeringStructural engineeringAnalytical Chemistry and SensorsElectrochemical sensors and biosensorsElectrochemical Analysis and Applications