22286
The four plasma isoprostanes are determined by LC - ESI - MS / MS with deuterated 8 - iso - PGF2 alpha - d4 as an internal standard ( I . S . ) .
 Chemical: isoprostanes; Chemical: 8 - iso - PGF2 alpha - d4
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: isoprostanes; Chemical: 8 - iso - PGF2 alpha - d4