9893
Recoveries at 0 . 01 and 0 . 02 mg kg ( - 1 ) were within 67 - 120 % with associated precision RSD below 19 % .
 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