Axis BTA 2100D Instrukcja Operatora Pobierz pdf (Strona 205)

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Under Storage Mass Ranges, enter the low m/z integer mass and the high m/z

integer mass for each of the mass windows to be selectively stored. Delete any

mass range not needed. You may enter up to five mass ranges. The default

parameters permit any mass range from 53 m/z to 650 m/z to be stored, given a

storage rf of 48 m/z.

Under Ejection Masses click on Ion Mass press the Add button, and enter the

integer mass(es) of those ion(s) to be ejected, along with the corresponding

amplitude(s) as percentages of the amplitudes that would normally be used in a

SIS ejection waveform. Enter up to five masses to eject. The Amplitude range is

10% to 200% with a default of 100%.

Customize SIS

The minimum allowable mass is determined by the storage rf level, which may

be accessed by clicking on Customize.

Ionization Storage Level

Using the default storage rf level of 48 m/z, the minimum low mass that can be

entered is 53 m/z (48 + 5 m/z).

Allowable Storage Mass Range: (storage rf + 5) < mass < 650 m/z.

Default = 48 m/z.

The lowest storage rf level that can be entered is 20 m/z, which allows a

minimum low mass of 25 m/z to be acquired.

The figure below shows the relationship between the minimum mass window that

can be stored and the isolated mass. Note that unit mass isolation can only take

place at low mass; at higher masses, a range of ions is stored even when a

single mass is entered.

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