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In comparison to the use of single PFP , the combination of PFP with GO - based method shows enhanced sensitivity with a detection limit as low as 40 pM for target DNA detection .
 Chemical: PFP; Chemical: PFP
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: PFP; Chemical: PFP