INFICON HAPSITE ER Chemical Identification System - Manual (Page 397)

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HAPSITE ER Operating Manual
Chapter 12
Target Compound Methods
12.1 Introduction To Quantitative Analysis
Quantitative analysis is the process of building a method calibration library of
Target Compounds, analyzing samples and converting Target Compound
responses to concentration results. The process of building a quantitative analysis
method includes the following steps:
1 Preparation of a standard or standards at multiple concentrations.
WARNING
Wear appropriate Personal Protection Equipment (PPE)
as advised by the MSDS of the standard(s) being used.
2 Collecting representative Data Files of the compounds at one or more
concentration levels.
3 Identifying the compounds and building a Target Compound library.
4 Calibrating the library.
5 Collecting and processing unknown samples for Target Compounds.
The Calibrate function of the HAPSITE software is used to set up or define the
quantitative method. The ID Unknowns function is used to process and review
results from a quantitative method. Quantitative results are automatically displayed
on the HAPSITE front panel display after data collection.
A HAPSITE method can be developed to collect, process and quantitate data. This
method must meet the chromatography performance requirements of the
application, e.g., Retention Times, compound separations, sensitivity, etc. It will be
used throughout the process of building the library and processing results. Refer to
Chapter 11, Method Editor for additional information on building a method.
The library is the key component in the quantitative method. The library contains
three types of information: the Retention Time (time it takes the compound to elute
from the column), mass spectral data used to confirm compound identity, and the
response factor that is used to calculate the concentration of the compound.