
Operating Instructions — Acquisition Methods
4500 Series of Instruments
System User Guide
58 of 138
RUO-IDV-05-0264-A
1
DP (Declustering
Potential)
Compound
The DP parameter controls the
voltage on the orifice, which controls
the ability to decluster ions between
the orifice and the skimmer (or for
systems with an IonDrive QJet
®
ion
guide, between the orifice and
IonDrive QJet ion guide). It is used to
minimize the solvent clusters that
may remain on the sample ions after
they enter the vacuum chamber, and,
if required, to fragment ions. The
higher the voltage, the higher the
energy imparted to the ions. If the DP
parameter is too high, unwanted
fragmentation may occur.
Use the preset value and optimize for
the compound.
All
1
CUR (Curtain
Gas)
Source and
gas
The CUR parameter controls the gas
flow of the Curtain Gas™
interface.
The Curtain Gas interface is located
between the curtain plate and the
orifice. It assists in solvent
evaporation and prevents solvent
droplets from entering and
contaminating the ion optics. The gas
flow should be maintained as high as
possible without losing sensitivity.
All
1
GS1 (Gas 1)
Source and
gas
The GS1 parameter controls the
nebulizer gas. The nebulizer gas
helps generate small droplets of
sample flow and affects spray
stability and sensitivity.
All
1
GS2 (Gas 2)
Source and
gas
The GS2 parameter controls the
auxiliary, or turbo, gas. It is used to
help evaporate the solvent to
produce gas phase sample ions.
All
1
TEM
(Temperature)
Source and
gas
The TEM parameter controls the
temperature of the turbo gas (GS2)
in the TurboIonSpray probe or the
temperature of the probe in the
heated nebulizer (or APCI) probe.
All
1
IS (Ion Transfer
Voltage)
Source and
gas
For the PhotoSpray
®
ion source, the
IS parameter controls the voltage
that transfers the ions from the
primary ionization region towards the
curtain plate orifice.
All
Item
Parameter Parameter
Type
Use
Scan Type
Содержание QTRAP 4500 LC/MS/MS system
Страница 4: ...Revision Log 4500 Series of Instruments System User Guide 4 of 138 RUO IDV 05 0264 A ...
Страница 22: ...Hazards Symbols 4500 Series of Instruments System User Guide 22 of 138 RUO IDV 05 0264 A ...
Страница 36: ...Operating Instructions Hardware 4500 Series of Instruments System User Guide 36 of 138 RUO IDV 05 0264 A ...
Страница 76: ...Operating Instructions Batches 4500 Series of Instruments System User Guide 76 of 138 RUO IDV 05 0264 A ...
Страница 128: ...Service and Maintenance Information 4500 Series of Instruments System User Guide 128 of 138 RUO IDV 05 0264 A ...
Страница 130: ...Troubleshooting 4500 Series of Instruments System User Guide 130 of 138 RUO IDV 05 0264 A ...
Страница 136: ...4500 Series of Instruments System User Guide 136 of 138 RUO IDV 05 0264 A ...
Страница 138: ...Calibration Ions and Solutions 4500 Series of Instruments System User Guide 138 of 138 RUO IDV 05 0264 A ...