Monthly Archives: September 2011

05 Sep

SPE

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You have the sample which you have been waiting for but it is only a few milliliters and you must clean it up before analysis.  The answer is to use solid phase extraction as part of your sample preparation.  SPE … Continue reading

02 Sep

Nutritional Requirements of Bacteria

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Bacteria can be divided into groups based on their nutritional requirements and how they obtain nutrients.  Organisms can be divided into two groups based on their carbon requirements: heterotrophs and autotrophs.  Heterotrophs obtain their carbon from organic compounds like lipids, … Continue reading