Spectral Behaviour of the low concentrations of Coumarin 334 with Broadband Cavity Enhanced Absorption Spectroscopy. Baghdad Sci.J [Internet]. 2022 Apr. 1 [cited 2025 Jun. 5];19(2):0438. Available from: https://bsj-ojs.uobaghdad.edu.iq/index.php/BSJ/article/view/6190