Spectrofluorimetry – cloud point extraction determination of trace arsenic (III) with 2′,7′-dichlorofluorescein was written by Abbas, Ahmed S.. And the article was included in Journal of Physics: Conference Series in 2019.Product Details of 76-54-0 This article mentions the following:
In this work, explains a separation and Preconcentration procedure for the determination of arsenic (III) by spectrofluorimetric method after complexation with the 2′,7′-dichlorofluorescein as a fluorogenic reagent agent presence by the nonionic surfactant Triton X-114 in λex 271 nm and λ em 537 nm, after that, the quant. isolated into a unimportant volume of the surfactant-rich phase later a centrifugation. The optimum conditions, such as pH, volume of surfactant and reagent (TritonX-114), equilibrium temperature and incubation time on the cloud point extraction procedure, were studied and optimized on the extraction productivity percentage. In this method limits of detection and quantification LOD and LOQ of As(III) ion was (0.102) and (0.525) ng/mL resp., and a linear calibration range of (5.0 -50.0) ng/mL for As(III). The proposed method has been successfully applied to the determination of As(III) ion in water samples with agreeable results. In the experiment, the researchers used many compounds, for example, 2′,7′-Dichloro-3′,6′-dihydroxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 76-54-0Product Details of 76-54-0).
2′,7′-Dichloro-3′,6′-dihydroxy-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 76-54-0) belongs to benzofurans derivatives. Benzofurans are only weakly aromatic in nature and they are cleaved by many oxidative and reductive conditions. They are also prone to polymerisation in the presence of concentrated mineral acids and Lewis acids.Product Details of 76-54-0
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem