A sensitive and selective electrochemical method was developed for simultaneous determination of uric acid (UA), xanthine (XA) and hypoxanthine (HX) based on a poly (pyrocatechol violet)/carboxyl functionalized multi-walled carbon nanotubes composite film modified electrode. The preparation and ...

In this work, the electrodeposition of pyrocatechol violet (PCV) was initially investigated by the electrochemical surface plasmon resonance (ESPR) technique. Subsequently, PCV was used as redox-mediator and was electrodeposited on the surface of pencil graphite electrode (PGE) modified with sin...

A pyrocatechol violet (PCV) modified carbon ceramic electrode (CCE) prepared by sol–gel technique was reported for the first time in this paper. By immersing the CCE in aqueous solution of PCV for only a short time, a thin film of PCV was rapidly formed on the surface of the electrode because o...

A spectrophotometric method for determining the speciation of aluminum using pyrocatechol violet (PCV) is tested on a series of known ligands over a range of concentrations and at two fixed pH values. The procedure assumes that the colorimetric signal is defined by the competition of the Al-liga...

Copper nanoparticles (CuNPs) form by in situ electrochemical reduction of chelated copper ions on the electrode with pyrocatechol violet (PCV) and single walled carbon nanotubes (SWCNTs). The electrodeposited PCV is used as chelating agent for copper ions as well as the redox mediator during the...

In present work, we demonstrate a simple but effective redox additive of pyrocatechol violet (abbr. PCV) to largely promote the capacitive performances especially when carried out in three different kinds of electrolytes (H2SO4, Na2SO4 and KOH), mostly due to its fast electron and proton transfe...

We prepared a pyrocatechol violet-titanium (IV) bis(ammonium lactato)dihydroxide (PV-TALH) complex that can be used as a colorimetric HF sensing dye. The titanium alkoxide, titanium (IV) bis(ammonium lactato)dihydroxide (TALH), easily formed a complex with pyrocatechol violet (PV) dye, which dis...

A disposable, low cost, commercial available electrode, Pencil graphite electrode (PGE), was modified with pyrocatechol violet (Pcv) for electrocatalytic oxidation of hydrazine. To prepare modified electrode, pencil leads were immersed into 0.01 M Pcv solution for 10 min at room temperature. Cyc...

Tannery industrial effluent is rich in heavy metals and basic dyes as bromocresol purple (BCP), poses an economic problem and a serious danger to the environment. This research had evaluated the importance of the adsorption properties of a modified clinoptilolite (CL) (a type of zeolite) for the...

Bromocresol purple monomers were polymerized electrochemically at carbon nanotube modified glassy carbon electrode surface and obtained electrodes were donated as poly(BCP)/CNT/GCE. After electrochemical polymerization, Au nanoparticles were doped on the polymer film carbon nanotube modified gla...

This paper describes an electrochemical sensor for the first time based on poly(bromocresol purple) (P(BCP)) developed to observe the interaction between 5-fluorouracil (5-FU) and fish sperm double strand DNA (dsDNA). The P(BCP) film was electrosynthesized by cyclic voltammetry method on the gla...

BackgroundIn clinical settings, human serum albumin (HSA) is widely quantitated on the basis of change in the color of bromocresol purple (BCP) bound to HSA. However, the binding sites of BCP on HSA are hitherto unknown. We have identified these sites by performing binding experiments in which B...

The quest for materials exhibiting high nonlinear refraction and absorption are required for photonic device application. In this paper we report a simplified Z-scan technique, to study the optical nonlinearity of the dye bromocresol purple in methanol and ethanol for different concentration and...

Sol-gel materials known as organically modified silicates (ORMOSILs) offer interesting features such as chemical and mechanical stability. In this paper VTES (vinyltriethoxysilane) and TEOS (tetraalkoxysilane) are mixed in 3:1 ratio. Sol-gel solution was prepared by hydrolysis process of precurs...

Although it has been widely recognized that hydrogen bonds play a significant role in the photophysics of molecules, this phenomenon has rarely been applied to the solvatochromic method for determination of dipole moments. The difference in the dipole moment between the ground and excited state ...

Polyvinyl chloride (PVC) dyed with bromocresol purple was investigated as a high-dose radiation dosimeter. The absorbance at 417 nm depends linearly on the dose below 50 kGy. The response depends neither on dose rate nor on the irradiation temperature. The effects of post-irradiation storage in ...

This paper presents an optical sensor for pH measurement based on thin film applied onto a silica substrate. The thin films were prepared through the sol–gel process, by using bromocresol purple (BCP) as photoresist indicator by means of hydrolysis and acid catalyzed reaction of tetraethylortho...

Reversible pH-sensitive element based on bromocresol purple immobilized into the polymethacrylate matrix was developed. Applications of the pH-sensitive element for continuous monitoring pH of aqueous solution were demonstrated.

In the last decade, zero-valent iron nanoparticles (nZVI) have been applied for groundwater remediation and they proved to be effective towards a wide range of contaminants, both organic and inorganic. One of the critical aspects related to the synthesis of this material concerns the use of boro...

Expelling of dyestuff into water resource system causes major thread to the environment. Adsorption is the cost effective and potential method to remove the dyes from the effluents. Therefore, an attempt was made to study the adsorption of dyestuff (Methylene Blue (MB), Bromophenol Blue (BPB) an...