| | 全二维GCxGC TOF MS对燃油的分析 | | 11-09-22 | | Petrochemical samples are one of the most comple matrix to be analyzed,due to the heterogeneity of the species contained.Some of these classes of compounds are potentially dangerous for human health,especially after the burning required to obtain energy.To reduce the pollutant effect of petroleum,many alternative fuels have been tested in the recent years;among these,biodiesel is produced through the trans-esterification of lipids contained in vegetable oils or animal fat raw materials;the result of the reaction are Fatty Acid Methyl Esters (FAMEs).It is demonstrate that this kind of fuel reduces the emission of many poisonous gases such as Greenhouse ones. | | | | 快速GC TOF-MS鉴定多氯联苯 | | 11-09-14 | | Polychlorinated biphenyls (PCBs) were extensively used in the past throughout the world, especially as coolants and dielectric fluids, stabilizing additives in PVC and plastic products, flame retardants, sealants etc. These compounds are a class of man-made organic compounds with notable and useful characteristics, such as non-flammability, heat resistance, insulation, and chemical stability. Nevertheless, PCBs are very dangerous chemicals and exposure to them can cause acute and chronic effects (chlorine acne, irritation of mucous membranes, cancer, immunological disturbances etc). | | |
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