6228
In this study we explored the possibility of using electrospray ionisation tandem mass spectroscopy ( ESI - MS / MS ) to unequivocally determine the structures of underivatised GLOS .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None