Determination of acetaldehyde by a chemiluminescence method

The determination of acetaldehyde was achieved by monitoring the chemiluminescence emission from the luminol-potassium hexacyanoferrate (III) reaction in the presence of xanthine oxidase. The linear range was three orders of magnitude, the detection limit (2σ) was 4 × 10^?7 M and the relative standard deviation (n = 5) was 10.6% for 4.3 × 10^?7 M. No interference was observed from seven organic and inorganic species at a 1000-fold excess relative to a concentration of 1 × 10^?5 M acetaldehyde.