OR WAIT 15 SECS
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© 2020 MJH Life Sciences™ and Spectroscopy Online. All rights reserved.
February 01, 2012
Current USP Method 231 "Heavy Metals" was introduced in 1905 for determining heavy metal impurities in pharmaceutical drug products. The procedures of the method have several limitations, which produce results that are nondiscriminatory, difficult to reproduce, and qualitative, or at best, semi-quantitative.