Date: Wed Jul 27 21:51:14 2011
Posted By: Henry Boyter, Research Fellow
Area of science: Chemistry
MgCl2 is not added in the standard test. There is a buffer solution that
is added that contains MgCl2. It is to control the pH of the test. Since
there is MgCl2 present, a blank is always run, however the amount of MgCl2
in the buffer is small and does not cause a problem with the test.
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