8636
The simulation results of HEPES in pure THF and in a composition inside the phase separation region were justified qualitatively .
 Chemical: HEPES; Chemical: THF
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: HEPES; Chemical: THF