Journal
ANALYST
Volume 128, Issue 1, Pages 42-45Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b210174b
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Mutagenic 3-nitrobenzanthrone was determined in diesel exhaust particulate matter by three-dimensional high-performance liquid chromatography. Nitrophenylethyl, C-18 and pyrenylethyl stationary phases were used as the first, second and third dimensions, respectively. Methanol was used as a mobile phase for the first and second dimensions, and dichloromethane was used for the third. Each column was coupled by a 6-port valve with a concentrator column. Effluent from the third dimensional column was detected by a photodiode array detector. The calibration graph showed good linearity in the range of 1-1000 ng ml(-1), and the detection limit (S/N = 3) was 1 ng ml(-1). 3-Nitrobenzanthrone could be detected within 45 min without the requirement of a clean-up procedure. 3- Nitrobenzanthrone in diesel exhaust particulate matter was detected in the range of 27-56 pg mg(-1) extract (n = 3).
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