Thermo Fisher Scientific
iCAP Q Operating Manual (P/N 1288090, Revision B)
G-1
Glossary
This section lists and defines terms used in this manual. It also includes acronyms, metric prefixes, symbols, and
abbreviations.
A
ac
Abbr. for alternating current, i.e. an electric current
that reverses its direction at regularly recurring
intervals.
accurate mass
The accurate mass is the theoretical ion
mass of an isotope or molecule as given by IUPAC
(
elements.els
).
Acid Resistant Sample Inlet
resistant inlet with a
special nebulizer chamber and torch.
ADC
Abbr. for analog-to-digital converter; a device
that converts data from analog to digital form.
AIM
Abbr. for Active Inverted Magnetron gauge used
for vacuum (pressure) measurement; also referred to as
Penning gauge.
AL/VI
Abbr. for Aluminum/Viton®; material used for
gaskets.
analog mode
the detection mode “Analog” can be used
for high signals between 5 × 10
4
to 5 × 10
9
cps. The
electrical current measured is converted into the
intensity information, which is stored in the data file.
analyte type
the following analyte types can be
inserted into a sequence: BLK, STD.
APG
Abbr. for Active Pirani Gauge used for vacuum
(pressure) measurement.
atomic mass unit
Atomic Mass Unit (u) defined by
taking the mass of one atom of carbon12 as being
12u; unit of mass for expressing masses of atoms or
molecules.
aux gas
auxiliary gas (argon), serves to generate the
plasma.
B
BEC
Abbr. for Background Equivalent Concentration
(normally in ppt); n=10, depends on the
concentration in the blank.
BLK
Abbr. for a blank (analyte)
C
°C
degrees Celsius.
CE
European conformity. Mandatory European
marking for certain product groups to indicate
conformity with essential health and safety
requirements set out in European Directives.
cool gas
serves to prevent the glass torch from melting.
counting mode
the detection mode “Counting” is a
digital measurement and counts electron pulses. It is
very sensitive and can be used for the detection of low
signals. During acquisition, the number of
occurrences is used to generate the intensity
information (in counts per seconds) that is stored in
the data file.
D
Da
Abbr. for dalton; unit of mass equal to the unified
atomic mass (atomic mass constant)
.
DAC
Abbr. for digital-to-analog converter; a device
that converts data from digital to analog form.
J
Q
X
Y
Z
BEC
blank intensities
concentration of standard
intensity standard
average intensity blank
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