An excellent analytical tool for the separation and analysis of TCM(Traditional Chinese Medicine) by using HR ESI TOF MS(High Resolution Electrospray Ionization Time of flight Mass Spectrometry) was developed. A home ...An excellent analytical tool for the separation and analysis of TCM(Traditional Chinese Medicine) by using HR ESI TOF MS(High Resolution Electrospray Ionization Time of flight Mass Spectrometry) was developed. A home built HR ESI TOF MS was applied to detect fat soluble components in Danshen( Salvia miltiorrhiza Bage ) directly. Compared with the method of HPLC ESI MS(High Performance Liquid Chromatograph Electrospray ionization Mass Spectrometry) method, HR ESI TOF MS method is more accurate, quick, simple and reliable, so the method can become an effective tool for the quality control of TCM.展开更多
This study conducted air particulate matter sampling to measure the total suspended particulate (TSP), PM 10 (particles<10 μmm in aerodynamic diameter) and PM 2 5 (particles<2 5 μmm in aerodynamic diameter) ma...This study conducted air particulate matter sampling to measure the total suspended particulate (TSP), PM 10 (particles<10 μmm in aerodynamic diameter) and PM 2 5 (particles<2 5 μmm in aerodynamic diameter) mass concentration at Tongan district in Xiamen. One hundred and nineteen samples were obtained to measure the mass concentrations of TSP, PM 10 and PM 2 5 during 15 April to 6 June 2002. According to these results, the TSP, PM 10 and PM 2 5 mass concentrations varied from 53 μg·m -3 (from 26 to 105 μg·m -3 ), 48 μg·m -3 (from 23 to 74 μg·m -3 ) and 41 μg·m -3 (from 18 to 62 μg·m -3 ), respectively. 18 elemental concentrations were determined by ICP MS, most elemental profiles were lower than previous studies. However, high levels of Pb and Zn indicate some pollutants existed in air particulate matter.展开更多
文摘An excellent analytical tool for the separation and analysis of TCM(Traditional Chinese Medicine) by using HR ESI TOF MS(High Resolution Electrospray Ionization Time of flight Mass Spectrometry) was developed. A home built HR ESI TOF MS was applied to detect fat soluble components in Danshen( Salvia miltiorrhiza Bage ) directly. Compared with the method of HPLC ESI MS(High Performance Liquid Chromatograph Electrospray ionization Mass Spectrometry) method, HR ESI TOF MS method is more accurate, quick, simple and reliable, so the method can become an effective tool for the quality control of TCM.
文摘This study conducted air particulate matter sampling to measure the total suspended particulate (TSP), PM 10 (particles<10 μmm in aerodynamic diameter) and PM 2 5 (particles<2 5 μmm in aerodynamic diameter) mass concentration at Tongan district in Xiamen. One hundred and nineteen samples were obtained to measure the mass concentrations of TSP, PM 10 and PM 2 5 during 15 April to 6 June 2002. According to these results, the TSP, PM 10 and PM 2 5 mass concentrations varied from 53 μg·m -3 (from 26 to 105 μg·m -3 ), 48 μg·m -3 (from 23 to 74 μg·m -3 ) and 41 μg·m -3 (from 18 to 62 μg·m -3 ), respectively. 18 elemental concentrations were determined by ICP MS, most elemental profiles were lower than previous studies. However, high levels of Pb and Zn indicate some pollutants existed in air particulate matter.
