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Table 1 List of pharmaceutical compounds, identification number, pK a values, chemical structure and retention times

From: An assessment of the concentrations of pharmaceutical compounds in wastewater treatment plants on the island of Gran Canaria (Spain)

Group of compounds Identification number Compound pKa Structure tR(min)
1 1 Naproxen 5.24 4.30
2 Carbamazepine 13.9 2.14
3 Ketoprofen 4.45 3.24
4 Bezafibrate - 5.52
2 5 Atenolol 9.64 7,23
6 Metamizole - 8,26
7 Paraxanthine 8.5 11,23
8 Fluoxetine 8.8 17,97
3 9 Levofloxacin - 2,03
10 Norfloxacin 6.4 2,23
11 Ciprofloxacin 5.9 2,61
12 Enrofloxacin - 3,16
13 Sarafloxacin - 4,76