Effect of sulphite on the determination of sulphide by continuous-flow molecular emission cavity analysis Determination of both anions in admixture

Nitroprusside and methylene blue methods for silicone membrane differentiated flow injection determination of sulfide in water and wastewater

“…Automated continuous-flow analysis methods with varying degrees of sensitivity (LOD as low as 0.4 Mg/L), specificity, and reproducibility and relying variously on luminometry (1)(2)(3)(4), amperometry (5,6), potentiometry (7-9), atomic (10) and molecular absorption spectrometry (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21), and molecular emission spectrometry (22,23) have been reported in the literature for quantifying sulfide. Compatibility with a sample matrix such as that of raw wastewater adds a different dimension to this problem.…”

Ionophore-modified polyaniline-based optode for the determination of hydrogen sulfite levels in beverages, wastewater, and soil

“…Although colorimetric methods seem to be the simplest method for sulfite determination, sulfites, sulfides, and thiosulfate have the same range of absorbance. 27 In addition, sulfides cannot be estimated in a solution without knowing the sulfite concentration in the sample; 28 the colorimetric Ellman reagent ( i.e. 5,5′-dithiobis( Z -nitrobenzoic acid)) was used to detect the sulfite but the interference of other compounds hindered its wide applicability.…”

Sequential Atomic Absorption Spectrophotometric Determination of Arsenite–Cyanide and Carbonate–Cyanide Mixtures Using an On-Line Preconcentration Technique in a Flow System

“…Recently, much attention has been devoted to the simultaneous determination of different anions and cations in various environmental and biological samples using the available spectroscopic techniques (1)(2)(3)(4)(5). Anions as cyanide (6)(7)(8)(9)(10)(11) and arsenite (12)(13)(14)(15) have been of interest for analysis due to their toxicity, which necessitates the development of fast and exact methods for controlling their levels in different matrices.…”