Establishing Analytical Performance Criteria for the Global Reconnaissance of Antibiotics and Other Pharmaceutical Residues in the Aquatic Environment Using Liquid Chromatography-Tandem Mass Spectrometry

Table 5

Percent false negatives for tetracyclines and quinolones in spiked environmental matrices at the 80% tolerance range.

Compounds	Matrix				Overall false negatives
	Influent	Effluent	Downstream	Upstream
Chlortetracycline	10%	0%	0%	0%	2%
Ciprofloxacin	0%	0%	0%	0%	0%
Enrofloxacin	0%	0%	0%	0%	0%
Norfloxacin	0%	4%	0%	0%	1%
Oxytetracycline	0%	0%	29%	0%	6%
Sarafloxacin	6%	11%	0%	20%	10%
Tetracycline	0%	0%	0%	0%	0%