真空型FTIR对丙二酸气溶胶的研究

Vacuum FTIR Observation on Malonic Acid Aerosols

利用压力方波装置和快速扫描真空红外光谱仪结合,研究了丙二酸气溶胶的吸湿性和相变行为,并研究了由外界湿度变化引起的丙二酸气溶胶中氢键作用的转化。另外,我们报道了脉冲湿度变化下丙二酸的风化过程。

A novel approach based on a combination of a pulse RH controlling system and a rapid scan vacuum FTIR spectrometer was utilized to investigate hygroscopic property and phase transition of malonic acid aerosols(MA).In this paper,we study the evolution of hydrogen-bonding interactions of malonic acid aerosols resultingfrom changing relative humidity.We are also the first to report the efflorescence of MA proceeds in a stepwise fashion.