A semi-quantitative approach for analyzing low-volatile organic compounds in house dust using an SFE method: Significant common features and particular differences of the extracts was written by Papadopoulos, Athanasios;Vlachogiannis, Diamando;Maggos, Thomas;Sfetsos, Athanasios;Karayiannis, Miltiades I.. And the article was included in Journal of Supercritical Fluids in 2013.Name: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) This article mentions the following:
A number of samples have been collected from various indoor environments located in a semi-rural area in north-western Italy, for extraction with supercritical carbon dioxide (CO2) and anal. of low volatility organic compounds on house dust. The investigation was based on a survey anal. approach aiming at the identification of the organic content of indoor dust. The quantification of the content of the compounds was obtained with a semi-quant. method, incorporating three pre-defined concentration ranges. The classes of compounds, mostly detected in the indoor dust samples analyzed, were fatty acids and some of their esters, n-alkanes, phthalates and alcs. Other less frequently found classes were other esters, phenols, aliphatic aldehydes and ketones. The compounds that were identified in all or in most of the house dust samples appeared predominantly in high concentration ranges while compounds detected scarcely were measured mainly in low concentrations The exptl. study verified that the most important emission sources for the organic compounds detected in the indoor environment were a wide variety of plastic materials and human activities (e.g., cooking). Particular features of some extracts were attributed to specific actions that took place in the house prior or during sampling, and/or to the materials used in the house construction or heating methods. Among the compounds identified as prominent in the house dust samples were the phthalates, of major interest with regard to their impact on human health. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4Name: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)).
N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. The solubilities of amides and esters are roughly comparable. Typically amides are less soluble than comparable amines and carboxylic acids since these compounds can both donate and accept hydrogen bonds. Tertiary amides, with the important exception of N,N-dimethylformamide, exhibit low solubility in water. Amides can be recrystallised from large quantities of water, ethanol, ethanol/ether, aqueous ethanol, chloroform/toluene, chloroform or acetic acid. The likely impurities are the parent acids or the alkyl esters from which they have been made. The former can be removed by thorough washing with aqueous ammonia followed by recrystallisation, whereas elimination of the latter is by trituration or recrystallisation from an organic solvent.Name: N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide)
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics