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        Official Methods of Analysis of AOAC INTERNATIONAL
        -   is the most comprehensive collection of validated analytical methods available anywhere.
          In it, you will find methods for food, beverage, agricultural, microbiological, pharmaceutical,
          and environmental analyses.  
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                             Johann Christian Poggendorff, Biographisch-literarisches handwörterbuch der exakten
                             Naturwissenschaften (Concise B
iographic-Literary Dictionary of the Exact Science) is a
                             reference, steeped in tradition, that has been publishing “accounts of the lives and achievements
                             of mathematicians, astronomers, physicists, chemists, mineralogists, geologists, biologists and
                             scientists from other disciplines since 1863.”

 

   SciFinder Scholar (Chemical Abstracts) is today’  leader in providing the most accurate and
   comprehensive chemical    and related scientific information.