1 full scan method – INFICON HAPSITE ER Chemical Identification System User Manual

Page 345

Advertising
background image

11 - 7

IP

N 07

4-

47

1-

P1

B

HAPSITE ER Operating Manual

11.3.1 Full Scan Method

A full scan Analyze (GC/MS) method is used for the full identification and
quantitation of volatile compounds in the sample.

The analysis may include expected compounds (or Target Compounds for which
the instrument will be calibrated), but may also include unexpected compounds.
These must be tentatively identified by a library search, and their quantitation can
only be approximated.

Method elements are:

If the HAPSITE is to operate separate from the Service Module, the HAPSITE
must have a NEG Pump installed and activated. Refer to

section 2.6, Service

Module, on page 2-17

and

Chapter 15, Service Module

.

The method components must be defined. This includes the definition of:

the Data File (where the data will be stored)

the Full-scan parameters (which defines the mass range and other
parameters of the Mass Spectrometer operation)

the Library Search parameters (which designates which library file to
access, individual and collective peak search, integration parameters, and
various reporting options)

the Inlet parameters (which defines the events and the order in which they
occur, the temperature profile and ramping rate, the filament delay time, as
well as the control parameters of the HSS or SituProbe, if installed)

the Tune file (which optimizes the mass spectral response to the Target
Compounds and the Internal Standards)

If the instrument is to operate without the Laptop, the method must be
saved on the HAPSITE.

The instrument must be tuned. (Refer to

Chapter 7, Tune

.)

The instrument must be calibrated to the Target Compounds. (See

Chapter

12, Target Compound Methods

.)

Advertising