28804
MATERIAL AND METHODS : A metabonomic approach based on ultra performance liquid chromatography coupled with quadrupole time - of - flight high - sensitivity mass spectrometry and a novel mass spectrometry ( Elevated Energy ) data collection technique was developed .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None