Monthly Archives: September 2011

05 Sep


Comments Off

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

Comments Off

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