Molecular characterization of primary humic-like substances in fine smoke particles by thermochemolysis-gas chromatography-mass spectrometry was written by Fan, Xingjun;Wei, Siye;Zhu, Mengbo;Song, Jianzhong;Peng, Ping’an. And the article was included in Atmospheric Environment in 2018.Recommanded Product: Dimethyl decanedioate This article mentions the following:
The mol. structures of primary humic-like substances (HULIS) in fine smoke particles emitted from the combustion of biomass materials (including rice straw, corn straw, and pine branches) and coal, and atm. HULIS were determined by off-line tetramethylammonium hydroxide thermochemolysis coupled with gas chromatog. and mass spectrometry (TMAH-GC/MS). A total of 89 pyrolyzates were identified by the thermochemolysis of primary and atm. HULIS. The main groups were polysaccharide derivatives, N-containing compounds, lignin derivatives, aromatic acid Me ester, aliphatic acid Me ester, and diterpenoid derivatives The aromatic compounds, including lignin derivatives and aromatic acid Me ester, were the major pyrolyzates (53.0%-84.9%) in all HULIS fractions, suggesting that primary HULIS significantly contributed aromatic structures to atm. HULIS. In addition, primary HULIS from biomass burning (BB) contained a relatively high abundance of lignin and polysaccharide derivatives, which is consistent with the large amounts of lignin and cellulose structures contained in biomass materials. Aliphatic acid Me ester and benzyl Me ether were prominent pyrolyzates in atm. HULIS. Diterpenoid derivatives are important markers of HULIS from pine wood combustion sources. The differences in pyrolyzate types and the distributions between primary and atm. HULIS suggested that the primary HULIS would undergo many atm. processes to reconstruct the macromol. organic matter in atm. aerosols. In the experiment, the researchers used many compounds, for example, Dimethyl decanedioate (cas: 106-79-6Recommanded Product: Dimethyl decanedioate).
Dimethyl decanedioate (cas: 106-79-6) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Recommanded Product: Dimethyl decanedioate
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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics