Page:NIOSH Manual of Analytical Methods - 8326.pdf/8

 S-Benzylmercapturic acid and S-phenylmercapturic acid in urine: METHOD 8326, Issue 1, dated 20 May 2014 - Page 8 of 10

Figure 1. Chromatograms obtained using the described procedure: (A) fortified urine containing 1 ng/ mL S-PMA, 7.2 ng/mL S-BMA, and 3.8 ng/mL of each of the deuterated internal standards (IS) and (B) non-fortified urine from above containing only the background level of 6.2 ng/mL S-BMA.

NIOSH Manual of Analytical Methods (NMAM), Fifth Edition