How are percent naturally occurring isotope abundances determined?

Subject: How are percent naturally occurring isotope abundances determined?

Date: Mon Oct 4 12:36:38 1999
Posted by Jayne Wilcox
Grade level: undergrad School: Harper College
City: Palatine State/Province: IL Country: USA
Area of science: Chemistry
ID: 939054998.Ch

Message:


Average atomic weights are determined by getting a weighted average of all 
naturally occurring isotopes of a given element.  Textbooks list tables of 
percent isotopic abundances, but how are these obtained?  Surely not all 
samples of a given element have the same isotopic composition, right?

Re: How are percent naturally occurring isotope abundances determined?

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