Xie, Li published the artcileDetermination of hypochlorite and bisulfite in water by bifunctional colorimetric sensor based on octupolar conjugated merocyanine dyes, Quality Control of 638-45-9, the publication is Microchemical Journal (2022), 172(Part_A), 106931, database is CAplus.
In this study, we developed a bifunctional colorimetric fluorescent sensor based on three merocyanine structures for the detection of hypochlorite (ClO–) and bisulfite (HSO3–). In MeOH solution and under special conditions, this sensor shows high selectivity on fluorescence and UV-Vis spectra for the detection of ClO– and HSO3–, resp. The sensor solution exhibits a strong red fluorescence emission at 638 nm, which was quenched and the blue color turned to purple pink rapidly upon the addition of ClO–. The mechanism of the detection of ClO– was confirmed via ESI-MS that the C=C groups were induced to produce ethylene oxide and ethylene glycol derivatives by hypochlorite. The fluorescence emission at 638 nm in the concentration range of ClO– from 0 to 24 μM showed a good linear relationship (R2 = 0.9919), and the LOD of the sensor for ClO– was 0.42 μM. Interestingly, the sensor can also detect HSO3– in acid condition (pH less than 7.4). The blue shift of UV-Vis spectra of the solution of sensor were observed after addition of HSO3– and irradiation with visible light for about 4 min. The HSO3– concentration showed a good linear relationship (R2 = 0.9987) at 275 nm in the range of 12-42 μM, and thus its LOD was calculated to be 1.14 μM. Finally, the sensor has important value for detecting ClO– and HSO3– in tap water and lake water.
Microchemical Journal published new progress about 638-45-9. 638-45-9 belongs to iodides-buliding-blocks, auxiliary class Iodide,Aliphatic hydrocarbon chain, name is 1-Iodohexane, and the molecular formula is C9H5ClO2, Quality Control of 638-45-9.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com