Watson C H, Barshick C M, Wronka J, Laukien F H, Eyler J R
Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6375, and Mass Spectrometry Division, Bruker Analytical Systems, Inc., 19 Fortune Drive, Billerica, Massachusetts 01821.
Anal Chem. 1996 Feb 1;68(3):573-5. doi: 10.1021/ac9508412.
A new pulsed-gas glow discharge (GD) source has been developed for use with an external ion source Fourier transform ion cyclotron resonance (FTICR) mass spectrometer. With pulsed argon gas introduction into the GD source, the gas load and pressure in the mass analyzer region were greatly reduced; this resulted in improved mass resolution. Mass resolution of greater than 1 450 000 (fwhm) has been achieved for Cu(+) ions from a brass sample, the highest reported for any type of GD mass spectrometer. The pulsed-gas GD source promises analytical usefulness for ultrahigh resolution measurements in GD mass spectrometry.
一种新型脉冲气体辉光放电（GD）源已被开发出来，用于与外部离子源傅里叶变换离子回旋共振（FTICR）质谱仪配合使用。通过将脉冲氩气引入GD源，质量分析器区域的气体负载和压力大大降低；这导致质量分辨率得到提高。对于来自黄铜样品的Cu(+)离子，已实现大于1450000（半高宽）的质量分辨率，这是任何类型的GD质谱仪所报道的最高值。脉冲气体GD源有望在GD质谱分析中用于超高分辨率测量。
