title: Reactive dye ostazine black V-B: determination in the dye-bath and hydrolysis monitoring by matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry.
abstract: Monitoring the hydrolysis of Ostazine Black V-B reactive dye was found to be possible by matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry (MALDI-TOFMS). All the desired substances were identified in a mixture of the dye-bath. The process of the substrate reactive dye hydrolysis was qualified with hydrolysis rate constants k(1) (2.0 +/- 0.3 h(-1)) and k(2) (0.6 +/- 0.1 h(-1)). The method developed is important for the dyeing industry and for following the colouration process.
authors.affiliation: Department of Analytical Chemistry, Faculty of Science, Masaryk University, Kotlárská 2, CZ-611 37 Brno, Czech Republic.
authors.forename: H
authors.initials: H
authors.lastname: Chromá-Keull
authors.forename: J
authors.initials: J
authors.lastname: Havlis
authors.forename: J
authors.initials: J
authors.lastname: Havel
mesh_terms: D004396:Coloring Agents / Q000032:analysis* / Q000737:chemistry; D006868:Hydrolysis; D007700:Kinetics; D016014:Linear Models; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*; D013450:Sulfones / Q000032:analysis* / Q000737:chemistry; D013783:Textile Industry
chemical_list: D004396:Coloring Agents; C403822:Ostazine Black V-B; D013450:Sulfones