4450
Based on range - specific evaluation , extraction of individual OPs was characterised by sub - ppb level sensitivity and a wide 0 . 01 - 2 . 5 mg L ( - 1 ) dynamic range .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None