What is the best way to prepare water extract of plants for LCMS/MS?

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I bought xanthine oxidase enzyme in ammonium sulfate suspension. Do I need to remove the suspension first before doing the xanthine oxidase assay?

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Which bacteria are suitable for quorum sensing screening?

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What is the state of the drug inside solid lipid nanoparticles (SLNs)?

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Why is the sum of the elements in a row in a Q matrix equal to zero?

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What is the indication of the absence of peaks in Methanol electrooxidation CV curves ?

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Andrew Mtewa

Immerse in water. First, understand the properties of a particular molecule you are interested in. if they are thermolabile, avoid heating your sample or heat to levels below their degradation temperatures. Sxhlet at 40 deg C does that well. Other wise, cold extraction (immerse in water for some hours (24 hrs or 7 days) can do. Then, lymphorize your samples, proceed with methanol...