The Fate of Sulfamethazine in Sodium-Hypochlorite-Treated Drinking Water: Monitoring by LC-MS^𝑛-IT-TOF

Table 1

LC-MS precision, accuracy, calibration ranges, and limits of detection for each compound encompassed in the screening method (𝑛=3 for each concentration for each day for each drug).

Drug	Calibration	Interday precision	Inter-day accuracy	Limit of detection
	Range (μg/mL)	(% RSD) Range	(% error) Range	(LOD)
Lincomycin (406.5 g/mol)	10–0.75	3.7–13.3%	0.30–14.8%	0.5 μg/mL
Trimethoprim (290.3 g/mol)	10–0.5	3.8–6.3%	0.40–14.8%	0.1 μg/mL
Enrofloxacin (359.4 g/mol)	10–1.0	3.9–13.8%	1.2–14.6%	0.75 μg/mL
Sulfamethazine (278.3 g/mol)	10–2.5	4.2–12.6%	0.95–12.7%	1 μg/mL
Sulfamethoxazole (253.3 g/mol)	10–2.5	2.1–7.2%	0.23–14.7%	1 μg/mL