17436
At three fortified levels ( 50 , 100 , and 150 ng / g ) , the recoveries for CA and MA ranged from 73 . 9 % to 104 . 2 % with the relative standard deviation ( RSD ) less than 11 . 9 % , based on within day and interday analysis .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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