7212
Venom concentrations in the range between 10 - 1250 ng / well were detected with almost the same efficiency , an extra advantage that could be added to the assay to assure equal sensitivity allover the mentioned venom concentration range .
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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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