予蒸发处理对ICP-MS离子分布状态的影响

探究予蒸发处理对ICP-MS离子分布状态的影响。The connecting tube (2 or 5-mm i. d., 11-cm long) between the spray chamber and the torch was heated (to 400 oC) to investigate the effect of pre-evaporation on the distribution of ions in inductively coupled plasma mass spectrometry (ICP-MS). Axial and radial profiles of analyte ions (Al+, V+, Cr+, Ni+, Zn+, Mn+, Zn+, As+, Se+, Mo+, Cd+, Sb+, La+, Pb+) in 1% HNO3 as well as some polyatomic ions (LaO+, ArO+, ArN+, CO2+) were simultaneously obtained on a time-of-flight ICP-MS instrument