Identification of organic xenobiotics in urban aquatic environments using time-of-flight mass spectrometry was written by Jernberg, Joonas;Pellinen, Jukka;Rantalainen, Anna-Lea. And the article was included in Science of the Total Environment in 2013.Recommanded Product: 10543-57-4 This article mentions the following:
Qual. non-target and post-target anal. methods using gas chromatog.-time-of-flight mass spectrometry were applied for analyzing neutral and acidic organic xenobiotics in urban and suburban water samples. Ten water samples representing wastewater, stormwater and surface water matrixes were collected and concentrated using solid phase extraction Compound identification was performed using a spectral deconvolution program, accurate mass measurements and comparisons with library spectra. The non-target and post-target analyses identified 36 and 18 compounds, resp. The identification of 10 compounds was afterwards confirmed with standard compounds Organophosphate esters were the most abundant compound group detected. The combination of non-target and post-target analyses proved a useful tool in the tentative identification of xenobiotics in water samples. Post-target anal. can complement non-target anal. results at low analyte concentrations Results showed that several organic xenobiotics originate in urban areas and accumulate in the environment. The wastewater sample produced the highest number of identified compounds, but most of these compounds were also found in stormwater samples from the city center. Nearly all the compounds in wastewater were addnl. detected in the surface water sample taken 3 Km downstream from the wastewater effluent discharge point. Only a few xenobiotics were otherwise detected in the surface water samples. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4Recommanded Product: 10543-57-4).
N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. In primary and secondary amides, the presence of N–H dipoles allows amides to function as H-bond donors as well. Thus amides can participate in hydrogen bonding with water and other protic solvents; the oxygen atom can accept hydrogen bonds from water and the N–H hydrogen atoms can donate H-bonds. Ionic, or saltlike, amides are strongly alkaline compounds ordinarily made by treating ammonia, an amine, or a covalent amide with a reactive metal such as sodium.Recommanded Product: 10543-57-4
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics