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

✍ Scribed by H. Chromá-Keull; J. Havlis̆; J. Havel

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 63 KB
• Volume: 14
• Category: Article
• ISSN: 0951-4198
• DOI: 10.1002/(sici)1097-0231(20000115)14:1<40::aid-rcm830>3.0.co;2-o

✦ Synopsis

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 AE 0.3 h À1 ) and k 2 (0.6 AE 0.1 h À1 ). The method developed is important for the dyeing industry and for following the colouration process.