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首页> 外文期刊>Journal of the Brazilian Chemical Society >Spatial and seasonal variations of pharmaceuticals and endocrine disruptors in the Atibaia River, S?o Paulo State (Brazil)
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Spatial and seasonal variations of pharmaceuticals and endocrine disruptors in the Atibaia River, S?o Paulo State (Brazil)

机译：巴西圣保罗州阿蒂巴亚河的药品和内分泌干扰物的时空变化

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A single run optimization chromatographic method for the determination of 15 emerging contaminants in surface water was optimized using solid-phase extraction (SPE) and high performance liquid chromatography (HPLC) with detection through ultraviolet-diode array (UV-DAD) or fluorescence (FLD). Selected compounds included acetaminophen, acetylsalicylic acid, diclofenac, ibuprofen, caffeine, 17β-estradiol, estrone, progesterone, 17α-ethynylestradiol, levonorgestrel, diethylphthalate, dibutylphthalate, 4-octylphenol, 4-nonylphenol and bisphenol A. Quality parameters of the proposed method showed a linearity r2 0.996, coefficient of variation lower than 5%, recoveries between 80 to 120% for a spike of 10 µg L-1 for each of the 15 compounds. The lowest limit of detection (LOD) was 38 ng L-1 for caffeine, whereas the highest value was 170 ng L-1 for ibuprofen. The method was applied to the spatial and seasonal monitoring of these compounds in the Atibaia River, which is the main drinking water source for Campinas City (São Paulo State, Brazil). Among the 15 selected emerging contaminants, 10 were detected at least once. The lowest concentration determined was 0.096 µg L-1 for diclofenac, whereas caffeine showed concentrations as high as 127 µg L-1.
机译：使用固相萃取（SPE）和高效液相色谱（HPLC）并通过紫外二极管阵列（UV-DAD）或荧光（FLD）检测，优化了用于测定地表水中15种新兴污染物的单次运行优化色谱方法）。选定的化合物包括对乙酰氨基酚，乙酰水杨酸，双氯芬酸，布洛芬，咖啡因，17β-雌二醇，雌酮，孕酮，17α-乙炔雌二醇，左炔诺孕酮，邻苯二甲酸二乙酯，邻苯二甲酸二丁酯，4-辛基苯酚，4-壬基苯酚和双酚A.所提出方法的质量参数显示线性r2> 0.996，变异系数低于5％，对于15种化合物中的每种10 µg L-1的加标回收率在80％至120％之间。咖啡因的最低检测限（LOD）为38 ng L-1，而布洛芬的最高检测限为170 ng L-1。该方法已应用于Atibaia河中这些化合物的空间和季节监测，该河是Campinas市（巴西圣保罗州）的主要饮用水水源。在15种选定的新兴污染物中，至少有10种被检测到一次。双氯芬酸的最低测定浓度为0.096 µg L-1，而咖啡因的浓度则高达127 µg L-1。

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