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In toxicity tests against insects and also molecules identification, I would like to know how to prepare aqueous extraction and analyze obtained extracts without altering chemical composition of...
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When we do a bioassay or something else we always choose a certain number of repetions but is it possible to omit this parameter ie working without repetition or this choice will affect negatively...
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To prepare plant extracts from leaves, fruits or the whole plant, what's the best time for collecting (morning, miday, ......etc)?
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A recent study showed that bees prefer foods containing neonicotinoid pesticides! What do you think about this information? http://www.nature.com/nature/journal/v521/n7550/full/nature14414.html
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I work on the toxicity of Euphorbiae sp against Blattella germanica using terpenes and I need to know if petroleum ether can help me to extract them.
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