无限稀释下的二茂铁铂(II)在超临界二氧化碳中的偏摩尔体积。
Infinite dilution partial molar volumes of platinum(II) 2,4-pentanedionate in supercritical carbon dioxide.
机构信息
Department of Applied Chemistry and Biochemical Engineering, Graduate School of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan; Research Institute of Green Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan.
Department of Applied Chemistry and Biochemical Engineering, Graduate School of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan.
出版信息
J Chromatogr A. 2014 Oct 3;1362:294-300. doi: 10.1016/j.chroma.2014.08.021. Epub 2014 Aug 14.
The effects of temperature and density on retention of platinum(II) 2,4-pentanedionate in supercritical fluid chromatography were investigated at temperatures of 308.15-343.15K and pressure range from 8 to 40MPa by the chromatographic impulse response method with curve fitting. The retention factors were utilized to derive the infinite dilution partial molar volumes of platinum(II) 2,4-pentanedionate in supercritical carbon dioxide. The determined partial molar volumes were small and positive at high pressures but exhibited very large and negative values in the highly compressible near critical region of carbon dioxide.
采用色谱脉冲响应法结合曲线拟合，在 308.15-343.15K 温度和 8-40MPa 压力范围内研究了温度和密度对超临界流体色谱中铂（II）2,4-戊二酮保留的影响。利用保留因子推导出铂（II）2,4-戊二酮在超临界二氧化碳中的无限稀释偏摩尔体积。在高压下，测定的偏摩尔体积较小且为正值，但在二氧化碳的高度可压缩近临界区域，其值非常大且为负值。
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