Publication detail

Mass Spectrometric Analysis of Sulphonated Dyes based on Diaminobiphenyls

Authors: Volná Kateřina | Holčapek Michal | Suwanruji P. | Freeman H.

Year: 2006

Type of publication: článek v odborném periodiku

Name of source: Coloration Technology

Publisher name: Wiley-Blackwell

Page from-to: 22-26

Titles:

Language	Name	Abstract	Keywords
cze	Analýza sulfonovaných barviv založených na diaminobifenylu s využitím hmotnostní spektrometrie	Analýza sulfonovaných barviv založených na diaminobifenylu s využitím hmotnostní spektrometrie
eng	Mass Spectrometric Analysis of Sulphonated Dyes based on Diaminobiphenyls	The title dyes, a group of new homo-bireactive disazo reactive dyes having molecular masses of 10001400 Da, were developed because of their potential use as low salt, easy wash-off colorants for cotton. Following dye synthesis from diaminobiphenyls with and without substituents in the 2,2'-positions, negative-ion electrospray ionisation mass spectrometry (ESI-MS) was used to characterise the dyes, The MS obtained were characterised by signals arising from [M - xH](x-) ions plus fragment ions produced by cleavage at C-N bonds adjacent to the azo linkage. In addition, better results were produced when J-acid was the coupler employed rather than H-acid. The characteristic fragmentation behaviour of the studied dyes is discussed and illustrated on selected example.	mass spectrometry;dyes;diaminobiphenyl

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