Page:NIOSH Manual of Analytical Methods - 2560.pdf/5

 1-NITR OP YRE NE: M ETH OD 2560, Issue 1, dated 1 5 Ma rch 2003 - Page 5 of 5

FIGURE 1: Th is is a chromatogram of a 1-nitropyrene 60 ng standard. The m ajor p eak at approx imately 22.5 minutes is 1-nitropyrene. This chromatogram shows some hydrocarbon response and a baseline with a higher than normal noise level due to the effort to obtain as much sensitivity as possible for samples in the low nanogram region.

FIGURE 2: The chromatogram shown here is from the analysis of the NIST SRM -1650 Diesel Particulates. The diesel particulate, 2.10 mg, was weighed on a glass fiber filter and carried through the com plete s am ple extra ction a nd p repa ration proc edu re. The q uan tity of 1-nitrop yrene in this sa m ple was 3 9.9 µ g.

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition