12890
Last but not least , with the community being satisfied with the performance of the current tools , potential complacency can be observed in the regulated bioanalytical community because existing technologies , such as LC - MS / MS and ligand - binding assays , have served and still are serving them extremely well .
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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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