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. 2008 Dec 27;44(1):67–78. doi: 10.3164/jcbn.08-185

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Copyright © 2009 JCBN

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 3 — MRM analysis of butylated BrY from urine. The sample preparation and analysis were done as described in the Figure 2 legend. The final concentration of internal standards cocktail including [¹³C₉]BrY is 50 nM. The MRMs of 316.0/214.0 and 318.0/216.0 show the native ⁷⁹BrY and ⁸¹BrY, respectively. The MRM combination of 325.0/222.0 and 327.0/224.0 indicates the stable internal standard of ⁷⁹BrY and ⁸¹BrY, respectively.