Now showing items 1-10 of 4080
Removal of Reactive Black 5 from aqueous solution by ozone for water reuse in textile dyeing processes
A química e toxicidade dos corantes de cabelo
(Sociedade Brasileira de Química, 2014-07-01)
The market for hair dye involves a growing range of products, which requires greater understanding of hair properties, mechanisms of action and color development. In this work, we present a critical analysis of the ...
Use of a composite electrode modified with magnetic particles for electroanalysis of azo dye removed from dyed hair strands
The analysis of dyes in hair samples can provide useful information for forensic purposes. The present work describes a novel method for the extraction of dye from a hair sample and its determination using a composite ...
Sustainable Cotton Dyeing in Nonaqueous Medium Applying Protic Ionic Liquids
Dyeing processes are highly important for differentiation of textile products, and in general, they use a huge amount of water and chemical additives, generating a great environmental impact. In the last years, the interest ...
Application of voltammetric technique to the analysis of indanthrene dye in alkaline solution
(Elsevier B.V., 2006-01-01)
The Indanthrene Olive Green B (C.I. Vat Green 3; C.I. 69500), VG3 dye, a vat dye bearing an anthraquinonoid group and a ketonic group, can be detected by differential pulse voltammetry in alkaline solution using glassy ...
Identification of Sudan III-(deoxy)-guanosine adducts formed in situ in a reaction with no catalyst
(Taylor & Francis Ltd, 2013-10-01)
Incubation of guanosine and Sudan III induces the formation of a stable adduct, which may be identified using a spectrophotometric technique and mass spectroscopy. The high nucleophilicity of the C-8 position and its ...
Determination of water insoluble dyes used as marking of commercial petroleum products using high-performance liquid chromatography with electrochemical detection
(Wiley-v C H Verlag Gmbh, 2010)
This paper describes an analytical method using high-performance liquid chromatographic (HPLC) separationcoupled with electrochemical detection to detect three dyes, Solvent Blue 14 (SB-14), Solvent Blue 35 (SB-35) andSolvent ...
Assessment of the application of cathodic stripping voltammetry to the analysis of diazo reactive dyes and their hydrolysis products
(Elsevier B.V., 2001-09-01)
Two reactive dyes, C.I. Reactive Red 120 (RR120) and C.I. Reactive Green 19 (RG19), each bearing two azo groups as the chromophoric moiety and two monochloro-s-triazine groups as reactive groups, can be detected at nanomolar ...
Highly Ordered TiO2 Nanotubes for Electrochemical Sensing of Hair Dye Basic Brown 17
Self-organized Ti/TiO2 nanotubular array electrodes were prepared by electrochemical anodization and used to monitor the reduction of the hair dye basic brown 17 (BB17) at a potential of -0.60V vs. Ag/AgCl. Analytical ...