In 2020 ANAL BIOANAL CHEM published article about HEAVY-METALS; WATER; METABOLITES; PHARMACEUTICALS; IDENTIFICATION; TRANSFORMATION; PESTICIDES; TOXICITY; PRODUCTS; SUPPORT in [Diarnanti, Konstantina S.; Alygizakis, Nikiforos A.; Nika, Maria-Christina; Thomaidis, Nikolaos S.] Natl & Kapodistrian Univ Athens, Dept Chem, Lab Analyt Chem, Athens 15771, Greece; [Alygizakis, Nikiforos A.; Oswaldova, Martina; Oswald, Peter; Slobodnik, Jaroslav] Environm Inst, Okruzna 784-42, Kos 97241, Slovakia in 2020, Cited 41. The Name is (E)-2-Methylbut-2-enoic acid. Through research, I have a further understanding and discovery of 80-59-1. Formula: C5H8O2
The quality of the Dniester River Basin has been seriously impacted by the chemicals released by agriculture, industry, and wastewater discharges. To assess its current chemical pollution status, a transboundary monitoring campaign was conducted in May 2019. Thirteen surface water, 13 sediment, and three biota samples were collected and analyzed using generic sample preparation methods for the determination of organic substances by liquid chromatography high-resolution mass spectrometry (LC-HRMS) and metals by inductively coupled plasma mass spectrometry (ICP-MS). Wide-scope target and suspect screening resulted in detection of Water Framework Directive (WFD) priority substances and emerging contaminants, whereas the raw data were stored in NORMAN Digital Sample Freezing Platform (DSFP) for future retrospective screening. Furthermore, risk assessment was performed to prioritize detected substances and propose a draft list of river basin-specific pollutants. All studied metals (As, Hg, Zn, Cu, Cr, Cd, Pb, Ni) were detected in the surface water and sediments. In total, 139 organic contaminants belonging to various chemical classes (pesticides, pharmaceuticals, drugs of abuse, stimulants, sweeteners, industrial chemicals, and their transformation products) were detected. The highest cumulative concentration of contaminants was observed in surface water from the Byk River, a tributary of the Dniester (Moldova). Concentrations of WFD priority substances diuron and mercury and EU Watch List neonicotinoid compounds imidacloprid and thiamethoxam exceeded their environmental quality standards (EQS), whereas concentrations of 23 emerging substances exceeded their predicted no-effect concentration (PNEC) at minimum one site. Emerging contaminants telmisartan, metolachlor, terbuthylazine, and 4-acetamidoantipyrine were prioritized as potential river basin-specific pollutants. Graphical abstract
Formula: C5H8O2. About (E)-2-Methylbut-2-enoic acid, If you have any questions, you can contact Diarnanti, KS; Alygizakis, NA; Nika, MC; Oswaldova, M; Oswald, P; Thomaidis, NS; Slobodnik, J or concate me.
Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles