Method Development for Assessing Carbamazepine, Caffeine, and Atrazine in Water Sources from the Brazilian Federal District Using UPLC-QTOF/MS

Table 1

Characteristics of the investigated samples and acronyms used in the present work.

Aquatic system	Acronym	Coordinates	Sampling depth (m)	Season
Paranoá Lake (Conventional)	PL-C	15°47'36.9"S 47°47'22.9"W	1, 5 and 10	Rainy and dry
Paranoá Lake (Emergency)	PL-E	15°44'37.2"S 47°49'51.9"W	1, 5 and 10	Rainy
Corumbá Lake	CL	16°12'26.7"S 48°09'55.2"W	0	Dry
Descoberto Lake	DL	15°46'41.5"S 48°13'52.9"W	9 and 16	Rainy (only 16 m) and dry
Santa-Maria Lake	SL	15°40'33.2"S 47°57'19.6"W	9 and 16	Rainy (only 16 m) and dry
Santa-Maria River	SR	15°40'58.1"S 48°01'09.8"W	0	Dry
Vargem-Grande Stream	VG	15°40'23.4"S 48°01'11.3"W	0	Dry
Milho-Cozido Stream	MC	15°40'11.8"S 48°00'24.0"W	0	Dry