Selective determination of acenaphthylene by flow injection analysis with tris(2,2′-bipyridine)ruthenium(II) chemiluminescence detection

A simple, rapid flow injection chemiluminescence (FI-CL) method has been developed for selective determination of acenaphthylene (ACY), based on the CL produced in the reaction of tris(2,2'-bipyridine)ruthenium(III) (Ru(biPY)(3)(3+)) and ACY in an acidic buffer solution. Under the optimum experimental conditions, the calibration curve was linear over the range 5.0 x 10(-3) to 4.0 x 10(-7) mol L-1 for ACY. The detection limit (SIN= 3) was 2.0 x 10(-7) mol L-1 and the relative standard deviation of 10 replicate measurements was 2.3% for 5.0 x 10(-5) mol L-1 of ACY. Selectivity of CL reaction of ACY from other 15 polycyclic aromatic hydrocarbons (PAHs) was investigated by flow injection method. The method was applied to determine the ACY content in soil. (c) 2007 Elsevier B.V. All rights reserved.