利用SINDIE 7039型单波长色散X射线荧光光谱仪,按ASTM D 7039-07标准方法,测定原油、汽油、柴油等油品的硫含量,分析了操作及样品条件对测定结果的影响,考察了方法的准确度和精密度,并将测定结果与仲裁标准SH/T 0689-2000或.GB/T 17040-...利用SINDIE 7039型单波长色散X射线荧光光谱仪,按ASTM D 7039-07标准方法,测定原油、汽油、柴油等油品的硫含量,分析了操作及样品条件对测定结果的影响,考察了方法的准确度和精密度,并将测定结果与仲裁标准SH/T 0689-2000或.GB/T 17040-2008进行了对比.结果表明,测试环境、样品组成、薄膜及样品盒等操作条件均会影响测试结果;该方法准确度测定相对标准偏差不超过1.7%,精密度测定90#汽油、0#柴油和原油样品的相对标准偏差均不超过1.4%,柴油加标回收率为93.6%~104.6%,与对应仲裁标准的分析结果基本吻合,能够满足ASTM D 7039-07标准的要求.展开更多
It is the first time to report the carbonylation of cyclohexene with carbon dioxide under ambient conditions irradiated at single wavelength visible light.The effects of catalysts, the additives and different waveleng...It is the first time to report the carbonylation of cyclohexene with carbon dioxide under ambient conditions irradiated at single wavelength visible light.The effects of catalysts, the additives and different wavelength have been investigated, which indicated that the metal complexes such as CoTPP and MnTPP acted as catalyst of the carbonylation as well as sensitizer under the irradiation of special wavelength visible light. Furthermore, when adding sodium proponiate to the solution, the catalysts such as PCFe would be activated and the formation of ester was promoted obviously. We also detected the quantum yield of this reaction, and found it can reach to 10-2. As far as the quantum yield and taking good advantage of the energy from solar was concerned. HSO3PCCo was the better catalyst for the carbonylation.展开更多
基金Project Supported by National Natural Science Foundation of China(81370350)Project Supported by Sichuan Provincial Department of Science and Technology(2012JY0089)
文摘利用SINDIE 7039型单波长色散X射线荧光光谱仪,按ASTM D 7039-07标准方法,测定原油、汽油、柴油等油品的硫含量,分析了操作及样品条件对测定结果的影响,考察了方法的准确度和精密度,并将测定结果与仲裁标准SH/T 0689-2000或.GB/T 17040-2008进行了对比.结果表明,测试环境、样品组成、薄膜及样品盒等操作条件均会影响测试结果;该方法准确度测定相对标准偏差不超过1.7%,精密度测定90#汽油、0#柴油和原油样品的相对标准偏差均不超过1.4%,柴油加标回收率为93.6%~104.6%,与对应仲裁标准的分析结果基本吻合,能够满足ASTM D 7039-07标准的要求.
文摘It is the first time to report the carbonylation of cyclohexene with carbon dioxide under ambient conditions irradiated at single wavelength visible light.The effects of catalysts, the additives and different wavelength have been investigated, which indicated that the metal complexes such as CoTPP and MnTPP acted as catalyst of the carbonylation as well as sensitizer under the irradiation of special wavelength visible light. Furthermore, when adding sodium proponiate to the solution, the catalysts such as PCFe would be activated and the formation of ester was promoted obviously. We also detected the quantum yield of this reaction, and found it can reach to 10-2. As far as the quantum yield and taking good advantage of the energy from solar was concerned. HSO3PCCo was the better catalyst for the carbonylation.