gas pulse inlet

In order to make the vacuum pressure stable rapidly during gas quantitative analysis using mass spectrum or the other automatic measuring and controlling system ,an automatic control system with width of gas pulse inlet regulated has been presented.

为了实现质谱微量气体信号检测及其它自动测控系统中的真空度快速进入稳态 ,提出了脉冲进气宽度可调真空度自动控制系统。

Determination of Trace Arsenic in Geological Samples by Flow Injection Hydride Generation Vapor Store and Pulsed Sampling Atomic Fluorescence Speetrometry;

流动注射氢化物发生-蒸气贮存脉冲进样原子荧光法测定地质样品中的痕量砷

he vapor collection and pulsed sampling technique has been developed for determination of antimony in ores by flow injection-hydride generation-atomic fluorescence spectrometry.

研究了流动注射氢化物发生－原子荧光测定矿石中Ｓｂ的方法，提出用蒸气收集脉冲进样技术，较大地提高了氢化物发生法的灵敏度和检测能力。

In this paper, a new pulsed sampling apparatus is described that can be used to determine Na and K in ores by flame atomic absorption spectrome-try.

采用一种新的脉冲进样装置火焰原子吸收法测定了矿石中Na和K,装置也可常规进样,同时获得两种进样的分析结果。