Tune the instrument GC-MS/MS QQQ



I have two questions about autotune in the instrument Agilent 7890B Gas Chromatograph with 7000D MS Triple Quad. Type of autotune is EI high sensitivity autotune.


1) What is the acceptable range of the electron multiplier voltage (EM Volts) which should appear on autotune?

2) What is the acceptable range of isotope ratios which should appear on autotune for mass 69, 219, 263, 414, 502?




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