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

<table class="fixed-width table-group" id="tab3"><tr><td><table class="table"><colgroup><col style="width:4.39em"/><col style="width:8.80em"/><col style="width:4.15em"/><col style="width:2.99em"/><col style="width:6.14em"/><col style="width:6.06em"/></colgroup><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Analyte</td><td class="align_center">Work range (<i>μ</i>g/L)</td><td class="align_center">Weight</td><td class="align_center">R<sup>2</sup></td><td class="align_center">LOQ (<i>μ</i>g/L)</td><td class="align_center">S/N at LOQ</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">CAF</td><td class="align_center">0.48 to 300</td><td class="align_center"><span style="width: 19.11165ptpx;"><svg height="11.438992pt" id="M14" style="vertical-align:-2.150657pt" version="1.1" viewbox="-0.049816 -9.288335 19.11165 11.438992" width="19.11165pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M384 0V27C293 34 287 42 287 114V635C232 613 172 594 109 583V559L157 557C201 555 205 550 205 499V114C205 42 199 34 109 27V0H384Z"></path></g><g transform="matrix(.013,0,0,-0.013,6.263,0)"><path d="M368 703H309L44 -163H104L368 703Z"></path></g><g transform="matrix(.013,0,0,-0.013,11.639,0)"><path d="M548 455L523 469C505 448 490 439 461 439C416 439 374 447 316 447C144 447 23 310 23 161C23 47 89 -12 179 -12C312 -12 429 106 429 244C429 303 419 344 368 386L371 388C404 383 440 378 474 378C507 378 530 411 548 455ZM350 274C350 191 308 25 198 25C144 25 108 75 108 157C108 264 170 395 276 395C296 395 320 384 333 360C347 334 350 316 350 274Z"></path></g></svg></span></td><td class="align_center">0,99</td><td class="align_center">0.48</td><td class="align_center">13.7</td></tr><tr><td class="align_left">CMZ</td><td class="align_center">0.48 to 300</td><td class="align_center"><span style="width: 29.263583ptpx;"><svg height="13.536579pt" id="M15" style="vertical-align:-4.248244pt" version="1.1" viewbox="-0.049816 -9.288335 29.263583 13.536579" width="29.263583pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M384 0V27C293 34 287 42 287 114V635C232 613 172 594 109 583V559L157 557C201 555 205 550 205 499V114C205 42 199 34 109 27V0H384Z"></path></g><g transform="matrix(.013,0,0,-0.013,6.263,0)"><path d="M368 703H309L44 -163H104L368 703Z"></path></g><g transform="matrix(.013,0,0,-0.013,11.639,1.341)"><path d="M782 731H740L476 -79H474L280 352L133 274L151 239L242 286L473 -219L782 731Z"></path></g><rect height="0.65243" width="7.555225" x="21.608737" y="-8.19788"></rect><g transform="matrix(.013,0,0,-0.013,21.609,0)"><path d="M556 393C556 426 537 448 514 448C496 448 478 435 471 420C468 414 462 401 466 394C473 382 480 368 480 346C480 268 392 143 338 67H336C329 163 319 253 309 330S286 448 254 448C215 448 160 383 127 337L143 311C167 344 200 373 208 373S222 365 229 320C246 214 264 66 268 -20C219 -83 131 -171 17 -239L25 -261L137 -235C248 -110 273 -79 335 8C384 77 481 215 520 287C544 332 556 363 556 393Z"></path></g></svg></span></td><td class="align_center">0,99</td><td class="align_center">0.48</td><td class="align_center">20.6</td></tr><tr><td class="align_left">ATZ</td><td class="align_center">0.48 to 300</td><td class="align_center"><span style="width: 19.11165ptpx;"><svg height="11.438992pt" id="M16" style="vertical-align:-2.150657pt" version="1.1" viewbox="-0.049816 -9.288335 19.11165 11.438992" width="19.11165pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M384 0V27C293 34 287 42 287 114V635C232 613 172 594 109 583V559L157 557C201 555 205 550 205 499V114C205 42 199 34 109 27V0H384Z"></path></g><g transform="matrix(.013,0,0,-0.013,6.263,0)"><path d="M368 703H309L44 -163H104L368 703Z"></path></g><g transform="matrix(.013,0,0,-0.013,11.639,0)"><path d="M548 455L523 469C505 448 490 439 461 439C416 439 374 447 316 447C144 447 23 310 23 161C23 47 89 -12 179 -12C312 -12 429 106 429 244C429 303 419 344 368 386L371 388C404 383 440 378 474 378C507 378 530 411 548 455ZM350 274C350 191 308 25 198 25C144 25 108 75 108 157C108 264 170 395 276 395C296 395 320 384 333 360C347 334 350 316 350 274Z"></path></g></svg></span></td><td class="align_center">0,99</td><td class="align_center">0.48</td><td class="align_center">16.6</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Work range and linearity of the external calibration curves.</div>

International Journal of Analytical Chemistry

tab3

Table 3

Table 3: Method Development for Assessing Carbamazepine, Caffeine, and Atrazine in Water Sources from the Brazilian Federal District Using UPLC-QTOF/MS 

Table 3 | Method Development for Assessing Carbamazepine, Caffeine, and Atrazine in Water Sources from the Brazilian Federal District Using UPLC-QTOF/MS 