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8. Chemistry Setup
In this section, you will learn about each standard chemistry setup for single chemistry configurations and then dual
chemistry configurations per module.
In order to configure your instrument to measure a particular chemistry analyte, you need to:
•
Approximate the analyte concentration or range of concentrations to be measured.
•
Decide if you must dilute your sample, and, if required, determine an appropriate dilution factor and diluent.
•
Decide what calibration value(s) is appropriate for the range of concentrations under study.
•
If possible, account for any interferences to your reading. Methods to do these corrections are described below.
Once you make the above determinations, you can decide whether one of the standard setups described below will be
appropriate or whether you will need to customize your setup.
Sample Volume
8.1
The sample volume range is 10 to 50
µ
L. However, this is a nominal volume. The instrument does not depend on an
accurate absolute value, but rather reproducible aspirations. This allows the calibrator probe signal to be stored in
memory and provide a reference value used to internally calculate sample readings.
NOTE: Do not change the ISE sample size from the default value of 25uL.
Measurement Parameter Information
8.2
For most standard applications, specifications and recommended parameter settings are outlined below under each
chemistry.