6646
The mean recoveries were in the range of 80 . 4 - 96 . 3 % at 0 . 1 and 0 . 5 spiked levels , and the relative standard deviations ( RSDs ) were in the range of 0 . 5 - 7 . 6 % .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None