Axis BTA 2100D Instrukcja Operatora Pobierz pdf (Strona 188)

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Item Description

Waveform Type Nonresonant or resonant excitation.

Excitation Storage Level Rf storage level in m/z when the dissociation

waveform is applied following isolation. The

excitation storage level range depends on the

parent mass, but the storage level must lie

more than 2 mass units below the lowest

product ion value.

Excitation Amplitude Range for nonresonant excitation is 0 to 100

volts. For resonant excitation, the range is 0 to

60 volts. Default values for nonresonant

excitation is 20 volts and 0.2 volts for resonant

excitation.

Item Description

Ionization Storage

Level

The m/z value the rf is maintained at during ionization and

the coarse isolation. Range 35 to 160 m/z, default = 48

m/z.

Ejection Amplitude Amplitude (v) of the ejection waveform during the coarse

isolation step. Range 0 to 60 volts, default=20.

Low Edge Offset Integer value step to optimize the ejection of the mass just

below the parent ion mass. Range is 0 to 20 steps. The

default value is 6 .

High Edge Offset The integer value step to optimize the ejection of the mass

just above the parent ion mass. Range is -20 to 20 steps.

High Edge Amplitude Amplitude of broadband waveform use to eject masses

above the isolated parent ion. Default is 30 volts.

Isolation Time The dwell time during which the rf field is held constant in

the high mass ejection step. Range 1 - 10 msec.

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