The molecular absorption was measured using a sharp line irradiation source together with the Zeeman background correction. The measured absorption was caused by aluminium chloride that was measured using lead hollow cathode lamp. Some kind of Zeeman splitting has been found in the case of studied molecular absorption bands having sharp lines. The absorptions measured were very unstable and noisy. However there was found some relationship between the measured absorption and the amounts of chlorine.
Parvinen, P., & Lajunen, L. (1998). The Zeeman splitting of aluminium monochloride molecular absorption bands as the possible interference in atomic absorption spectrometry. Spectroscopy Letters, 31(8), 1761-1769. https://doi.org/10.1080/00387019808007452