12125
Compared to HD , the SFE method presents some advantages : the extraction was completed after 1 h in SFE , although 4 h is necessary for HD , and the yield was improved by 34 % .
 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