22898
Ion mobility spectrometry ( IMS ) , integrated with LC - MS / MS , recently demonstrates the capability of separating isomeric species based on differences in their drift times from IMS , which are linearly proportional to the collision cross - section ( CCS ) reflecting physical size and shape .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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