Axis BTA 2100D Manuel de l'opérateur télécharger pdf (Page 187)

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uses two parent ions for sequential dissociation. The additional dissociation

step can be used to increase selectivity of analyte versus background or for

additional structure information.

First, work out optimized conditions for MS/MS of the first parent ion. AMD will

make this process go faster.

Then optimize the conditions for dissociation of that product ion (entered under

parent ion 2). You may need to make sequential injections using the MS

method. If the second generation product ion is in the original EI or CI spectrum,

then you can use AMD to find the optimum conditions.

Item Description

Parent Ion Mass (m/z) Integer or exact mass. Parent ion 1 mass range

is 50 to 650 m/z. Parent ion 2 mass range is

from 50 to (parent ion-1)m/z, and so on.

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.

1 2 ... 182 183 184 185 186 187 188 189 190 191 192 ... 596 597

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Axis BTA 2100D Manuel de l'opérateur Page 187

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