Photo-induced fluorescence of magnesium derivatives of tetracycline antibiotics in wastewater samples

The LOQs were 0.25, 0.15, 01 and 0.25 μg L−1 for TC, ETC, MC and DC, respectively. The recovery values oscillated between 107.1% and 92.4% for fortification of 2.5 μg L−1 of each antibiotic.