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Tune the instrument GC-MS/MS QQQ

Question asked by wakaba.jose on Apr 9, 2018
Latest reply on Apr 9, 2018 by james_jenkins



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?