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WANG Li-na, CHEN Xiao-zhen, MO Wei-min, ZHANG Dong-lei, HUANG Li-ying. Study on the Fragmentation Pathways of Astrazon Orange G, Astrazon Orange R and Rhodamine B by ESI-MSn[J]. Journal of Chinese Mass Spectrometry Society, 2013, 34(2): 96-102. DOI: 10.7538/zpxb.2013.34.02.0096
Citation: WANG Li-na, CHEN Xiao-zhen, MO Wei-min, ZHANG Dong-lei, HUANG Li-ying. Study on the Fragmentation Pathways of Astrazon Orange G, Astrazon Orange R and Rhodamine B by ESI-MSn[J]. Journal of Chinese Mass Spectrometry Society, 2013, 34(2): 96-102. DOI: 10.7538/zpxb.2013.34.02.0096
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Study on the Fragmentation Pathways of Astrazon Orange G, Astrazon Orange R and Rhodamine B by ESI-MSn

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  • To investigate the fragmentation pathways of astrazon orange G, astrazon orange R and rhodamine B, which are often illegally added into foods, electrospray ionization-ion trap mass spectrometry（ESI-MSn）were applied. In positive mode, the characteristic ESI-MSn fragmentation pattern of the three dyes was discussed. It shows that the eliminations of ·CH3 and ·CH2CH3 and the generation of N+ are the common fragmentation pathways of the three dyes. The results may help to deduce the structures of basic industrial dyes according to their structural characteristics and lost fragmentations. It also can provide theoretical knowledge of the rapid identification of structural analysis of basic dyes.
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