Guo, Jing published the artcileExtended suspect screening strategy to identify characteristic toxicants in the discharge of a chemical industrial park based on toxicity to Daphnia magna, Recommanded Product: Triisopropanolamine, the publication is Science of the Total Environment (2019), 650(Part_1), 10-17, database is CAplus and MEDLINE.
With an increasing amount of industrial wastewater being discharged and the numerous chems. existed in, methods to identify toxicants in such complex matrixes are urgently needed for source control and quality management. In vivo toxicity to Daphnia magna was evaluated in the effluent of a wastewater treatment plant (WWTP). An extended suspect screening strategy was performed by bioassay-directed fractionation, accompanied with suspect screening of 228 suspect chems. in toxic fractions based on their mass characteristics and chromatog. characteristics. A toxicity evaluation of the original samples, organic components extracted by solid-phase extraction (SPE) and the filtered samples showed that organic compounds extracted by SPE were the main toxic components. Four of the 26 fractions of the organic extracts exhibited a toxic unit (TU) >1.0, with hydrophobic organic compounds contributing most to the toxicity. Twenty-eight of the 228 suspects were identified in four toxic fractions, with 53.6% of the suspects elucidated by spectrum interpretation based on mass characteristics and 53.8% more false pos. suspects removed based on chromatog. characteristics. Finally, 6 pollutants, including imazalil, prometryn, propiconazole, tebuconazole, buprofezin and diazinon, were further confirmed and explained 48.79% of the observed toxicity. With 2.48 times more of the toxicity explained and 90% of the labor saved, the extended suspect screening strategy enabled more efficient and reliable identification compared to traditional quant. anal. and non-target screening, especially for identification of characteristic toxicants in complex environmental matrixes.
Science of the Total Environment published new progress about 122-20-3. 122-20-3 belongs to alcohols-buliding-blocks, auxiliary class Organic Pigment, name is Triisopropanolamine, and the molecular formula is C9H21NO3, Recommanded Product: Triisopropanolamine.
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