Determination of Emerging Organic Pollutants in Geum River Using SPE Coupled with UHPLC-MS/MS |
고상추출법-UHPLC-MS/MS를 이용한 금강 수계 내 신종 유기오염물질 분석 |
이지호1, 김준우2, 나진성3, 전준호4 |
1화학물질안전원 2새만금지방환경청 3한국생산기술연구원 4창원대학교 |
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Abstract |
The occurrence and concentration of emerging organic pollutants, organophosphorus flame retardants (OPFRs), benzotriazole UV stabilizers (BUVSs), pharmaceuticals and personal care products (PPCPs) were investigated using SPE coupled with UHPLC-MS/MS. The method detection limit (MDL) and quantification limit (MQL) for target compounds (10 OPFRs, 8 BUVSs, 9 PPCPs) was lower than 4.6 ng/L and 15 ng/L, respectively, while the recovery rate for river water matrix was ranged from 71 to 100%. Among 27 target pollutants, 18 chemicals were successfully quantified with ng/L levels ranged from 0.3 ng/L ~ 36.9 ng/L. Tributyl phosphate (TnBP; 27.7 ng/L), 2-(2H-benzotrizole-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol (UV-234; 1.6 ng/L), and Methyl paraben (MeP; 36.9 ng/L) are the most abundant compound measured at the highest concentration for each pollutants group, respectively. Carbamazepine (CBZ) and MeP showed the highest detection frequency (97%), followed by 77% frequency of triphenyl phosphate (TPhP) and propyl paraben (PrP).
The concentration determined for target organic pollutants are far below a level to trigger an acute toxicity on aquatic organisms. However, the information on the occurrence and concentration gathered from chemical monitoring with a reliable analytical technique should be enlarged to expand our knowledge on integrity and safety of aquatic ecosystem. |
Key Words:
Micropollutants, Organophosporus flame retardants, Benzotriazole UV stabilizers, Pharmaceuticals, Personal care products, River watershed, LC-MS/MS |
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