FLOW METHODS FOR THE DETERMINATION OF POLYCYCLIC AROMATIC-HYDROCARBONS USING LOW-POWER PHOTOMULTIPLIER TUBE AND CHARGE-COUPLED-DEVICE CHEMILUMINESCENCE DETECTION
Kn. Andrew et al., FLOW METHODS FOR THE DETERMINATION OF POLYCYCLIC AROMATIC-HYDROCARBONS USING LOW-POWER PHOTOMULTIPLIER TUBE AND CHARGE-COUPLED-DEVICE CHEMILUMINESCENCE DETECTION, Analytica chimica acta, 346(1), 1997, pp. 113-120
Polycyclic aromatic hydrocarbons (PAHs) are produced during combustion
processes (both natural and anthropogenic), and as a consequence are
distributed widely throughout environmental systems. This paper descri
bes the application of peroxyoxalate chemiluminescence (CL) detection,
with a 12V low power photomultiplier tube (PMT) detector and a two-di
mensional charge coupled device (CCD) detector, to the determination o
f PAHs. The PMT system provides comparable sensitivity to high power (
1 kV) PMTs (detection limits in the pg range) and complementary inform
ation to that derived from fluorescence detection. The CCD system can
be used to obtain full CL spectral information (in contrast to the int
egrated response from PMTs) and it has been shown that multivariate ca
libration can be used in conjunction with CCD detection to give good p
redictive errors (<9%) for simple two-component systems, e.g. benzo[k]
fluoranthene and benzo[a]pyrene in hexane.