ICP OES 培训课程Chapt5.pdf

Vista ICP-OES Operation Objectives • Discuss the setup of the ICP for analysis • Discuss the main steps in developing a worksheet • Discuss the characteristics of analytical wavelengths • Discuss the optimization of the method • Vista operation Vista Software (1) • Vista Software is based on Varian’s award winning worksheet concept • True Windows 95 32 bit code • Compatible with Windows 98, 2000, NT and XP • Entire Vista is computer controlled • including all gas flows (with mass flow controller), • plasma viewing height (radial) or X-Y position (axial), • ignition, RF power, safety interlocks and utilities monitoring Vista Software (2) • Powerful Split-Screen Graphics • Can simultaneously view results and graphic scans or calibration results • Spectral Background Correction • 1 or 2 point manually selected correction • Automatic Fitted Gaussian correction • FACT (Fast Automated Curve-fitting Technique) • provides on-line spectral deconvolution for resolution of complex spectra Vista Software (3) • Vista PRO only • TRS (Time resolved spectra) Used for chromatography speciation • Auto Max for auto-optimization of parameters • AIT (Adaptive Integration Technology) Allows simultaneous measurement of intense and trace signal • Smart Rinse • Vista MPX only • Autointegration Uses “multi-framing” technology Main Index Page Instrument Set-up Page Torch Alignment (1) • Torch alignment is done everytime the torch is installed in the instrument. • Uses pre-programmed method - TORCH • A horizontal alignment is performed on both the RADIAL and AXIAL configurations • A vertical alig