17437
The lower detection limit for CA and MA in matrix sample were 0 . 22 ng / ml and 0 . 26 ng / ml , respectively , which were lower than those of published literatures .
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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:
 None