22317
Dilatation moduli have been measured using the pulsating droplet technique at different frequencies , different concentrations ( below and above CNAC ) , and different aging times .
 None
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