Axis BTA 2100D Manuel de l'opérateur télécharger pdf (Page 183)

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Item Description

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

constant in the high mass ejection step.

Range 1 - 10 msec.

Excitation Time Time for collision-induced dissociation (CID)

by ion excitation. Range 0 to 1000 msec. The

default is 20 msec

Modulation Range Mass range over which the rf storage field is

modulated during resonant CID. The range is

0 to 12 steps, default is 2 steps. Value of 0

gives a fixed rf storage field, i.e., no

modulation.

Modulation Rate The number of microseconds that will be spent

at each step. The range is 29 usec to 5600

usec, default is 3000 usec/step.

Number of Frequencies Enter an odd integer in the range of 1 to 121.

A frequency number of one generates a single

supplementary frequency applied to the end

caps. An integer of 3, generates three

frequencies: the resonance frequency and

frequencies 500 Hz above and below that

frequency.

CID Frequency Offset To offset the dissociation frequency. The CID

frequency can be adjusted between  3000

Hz.

Automated Methods Development (AMD)

Item Description

Parent Ion Mass (m/z) Integer or exact mass. Parent ion mass range is 50 to

650 m/z.

Isolation Window (m/z) Integral and fractional mass isolation windows are both

accepted. Range is 1.0 to 14.0 m/z and is mass

dependent. The default value is 3.0 m/z.

Waveform Type Nonresonant or resonant excitation.

1 2 ... 178 179 180 181 182 183 184 185 186 187 188 ... 596 597

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Axis BTA 2100D Manuel de l'opérateur Page 183

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