Monthly Archives: February 2011

28 Feb

Data Logger Systems

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Data Logger Systems are rapidly taking the place of chart recorders.  These devices electronically store data associated with dates and times the data is acquired.  Dataloggers can be programmed for sampling intervals from seconds to hours for any length of time … Continue reading

25 Feb


Organisms of different species differ not only in their morphology and physiology but also in the characteristics that make up their molecular structure resulting in different serotypes.  The proteins, polysaccharides, nucleic acids, and lipids define the molcular structure of an organism.  … Continue reading

18 Feb

E. Coli

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E. Coli (Escherichia coli) is part of the normal flora of the human body and lives in the intestinal tract (coliform).  It is used as an indicator organism for fecal contamination.  Pathogenic strains of E. coli can cause of serious … Continue reading

07 Feb

Ion Selective Electrodes

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You need to detect Chloride ion in your samples?  If you need a precise determination a Chloride ion selective electrode may be the tool you need.  Ion Selective electrodes, or ISE’s, are designed for many ions:  Cl-, F-, Br-, NH4+,  NO3+, … Continue reading

04 Feb

Intestinal Pathogens

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The intestinal pathogens of the most medical importance are the salmonella and shigella and pathogenic strains of Escherichia coli.  They cause gastroenteritis, bacillary dysentery, foodborne illness, and diarrhea in humans.  Right now the taxonomic differences of salmonella are being revised.  In … Continue reading