Waters GCT Premier - Page 105

Setting up DRE mode 4-17
Requirements:
• If the instrument was tuned in negative ion mode, use the mass
values shown in the Table titled “Mass values and example
magnification factor results for methyltriazine in EI and CI positive
ion mode:” on page 4-17.
• The magnification factors for each ion mode are different; you must
calculate them separately for EI+, EI-, CI+, and CI-.
Mass values and example magnification factor results for heptacosa in
EI and CI positive ion mode:
Mass Magnification factor
68.99518 34.51
130.9919 23.01
218.9856 23.90
413.9774 23.25
501.9711 27.69
Mass values and example magnification factor results for
methyltriazine in EI and CI positive ion mode:
Mass Magnification factor
68.99521 50.65
121.0013 43.28
189.9965 35.25
265.9964 28.04
284.9949 28.11
magnification factor
peak intensity in high intensity mode
peak intensity in low intensity mode
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