| 摘要 |
PURPOSE:To be able to measure in a short integral time thus to improve reproducibility by a method wherein laser light transpires a part of a sample and aforesaid transpired samples made corpuscles by carrier gas to be guided to a plasma torch inner tube. CONSTITUTION:Laser light transmits a gas plate 22 to act on a sample 26 to transpire a part of aforesaid sample. Further, the sample transpired in this way is made corpuscles by carrier gas introduced from a carrier gas leading-in tube 27a to be guided from a carrier gas leading-out port 27b to a plasma torch inner tube. Since the leading-in tube 27a and a leading-out port 27b are arranged in the right-angled direction, gas is enabled to sufficiently circulate inside a sample cell to smooth gas replacement so as to give a good analysis result. Accordingly, sample throughput, detection sensitiveness and reproducibility are all improved together with to realize a high-frequency induction plasma mass spectrograph, in which also purge time is shortened. |
