17288
The rice samples were initially extracted with acetonitrile ( MeCN ) , and the targeted pesticides were purified following the dispersive solid phase extraction ( d - SPE ) cleanup method and detected by gas chromatography - tandem mass spectrometry ( GC - MS / MS ) .
 Chemical: acetonitrile; Chemical: MeCN
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: acetonitrile; Chemical: MeCN