Rhodamine B is a synthetic dye that used to textiles, but it often misused color street food product such as cotton sugar. The short-term effects of Rhodamin if comes in contact with the skin or eyes are irritation affected area, acute poisoning, abdominal pain, vomiting, diarrhea, headaches, dizziness and hypersalivation. While long-term caused gastrointestinal tract, disorders several reprodu...

The effect of the molar concentration Rhodamine B dye on optical absorption spectra and fluorescence spectra. results show that Absorption intensity increased peaks are blue shifted as from 1 to 100 M. In addition, reveal an enhancement absorbance fluorescence quenching is observed. obtained higher than 60µM has come collisional mechanism. Beer-Lambert law governs at low concentrations. While de...

We individuate a photoinduced electron transfer (PeT) as a quenching mechanism affecting rhodamine B photophysics in solvent. The PeT involves an electron transfer from the carboxylate group to the xanthene ring of rhodamine B. This is finely modulated by the subtle balance of coulombic and non-classical interactions between the carboxyphenyl and xanthene rings, also mediated by the solvent. We...

Mucopolysaccharidosis type I (MPS I) is the most common form of the MPS group of genetic diseases. MPS I results from a deficiency in the lysosomal enzyme α-l-iduronidase, leading to accumulation of undegraded heparan and dermatan sulphate glycosaminoglycan (GAG) chains in patient cells. MPS children suffer from multiple organ failure and die in their teens to early twenties. In particular, MPS...

5(6)-Carboxy-rhodamine 110 isomers were rapidly synthesized by condensation of 3-aminophenol and trimellitic anhydride using microwave irradiation as heating method. After esterification of the two isomers, separation and hydrolyzation provided target products,5-carboxy-rhodamine 110 and 6-carboxy-rhodamine 110, in high yields. The results shows microwave irradiation can effectively reduce ...

The electrogenerated chemiluminescence (e.c.!.) and electrochemistry of the laser dyes, coumarin-2, coumarin-3D, rhodamine-GG (perchlorate), rhodamine-B (perchlorate), oxazine1 (perchlorate), and Nile Blue (perchlorate) were studied in acetonitrile using 0.1 M tetran-butylammonium perchlorate (TBAP) as a supporting electrolyte. Rather low intensity e.c.!. was obtained for all dyes except Nile B...

A simple, precise, rapid and low-cost potentiometric method for diclofenac determination in pharmaceuticals is proposed. A new diclofenac-sensitive electrode was constructed by incorporating the diclofenac ion pair complex with butyl rhodamine B into graphite matrix. The electrode exhibited a linear response over the concentration range of 1 × 10-4 – 5 × 10-2 mol L-1, a detection limit of 3.9×1...

Rhodamine B is a synthetic dye that often misused as food coloring in crackers. consumption through can irritate the digestive tract, impair liver function, and cancer. The purpose of study was to determine content rhodamine This used quantitative method, purposive sampling employed technique. Method validation carried out against UV-Visible spectrophotometer testing Validation method produces ...