Yan, Yang-Yang published the artcileCharacteristics of enriched components from thermal dissolution extracts of Zhaotong lignite using solid phase microextraction, Quality Control of 121-00-6, the main research area is lignite polydimethylsiloxane thermal dissolution solid phase microextraction.
Due to the low concentration of minor compounds and the detection limit of instruments, numerous compounds in the thermal dissolution (TD) extract of coals cannot be detected. Therefore, it is necessary to introduce solid phase microextraction (SPME) for sampling before anal., which can enrich compounds in mixtures with similar mol. structures and exclude interferences from other components. In this work, partial species in the TD extract of Zhaotong lignite were enriched by SPME with a polydimethylsiloxane (PDMS) coating. The enrichment characteristics of the coating on TD extract were examined by gas chromatog.-mass spectrometry (GC-MS). Nitrogen-containing compounds and sulfur-containing compounds were removed from the enriched species, and the content of aliphatic hydrocarbons increased from 30.0% to 93.2% after enrichment. Oxygenated aromatic compounds with structures similar to the long-chain siloxane bonds of PDMS were also enriched. This study establishes a SPME method and provides a basis for the anal. of lignite and its derivatives
Fuel published new progress about Coating process. 121-00-6 belongs to class ethers-buliding-blocks, name is 4-Hydroxy-3-tert-butylanisole, and the molecular formula is C11H16O2, Quality Control of 121-00-6.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem