Anatel A643a - Calibration and Validation 95 of 220
RPS - June 2007 - Edition 12
Anatel Operator Manual
6.5 System Suitability
System suitability provides a confirmation of the performance and efficiency of Anatel’s on-line
Total Organic Carbon instrumentation. The procedure compares the average of a series of
TOC measurements from an easy-to-oxidize working standard (in the form of sucrose) to the
average of a corresponding series of measurements of a hard-tooxidize system suitability
solution (in the form of 1,4-benzoquinone). The response efficiency (RE) should be within 85%
to 115%.
Refer to Standard Operating Procedure (SOP) #643–2/2A for complete instructions on
performing this procedure.
To determine system suitability:
1) With the desired Analyzer selected in any View, press the Manual Key to access its
menu selections.
2) Use the Up and Down Keys to specify Calibrations.
3) Press Enter to display its submenu.
4) Use the Up and Down Keys to specify Suitability. If the chosen Analyzer is connected
to an A-Net network on which other instruments reside, the analyzer will prompt to
confirm that it is the correct instrument by verifying its serial number. The Analyzer will
begin a temperature stabilization process, its duration depending on the sample water
temperature. The actual time required is displayed and counted down.
In a networked environment (see “Network Installation” on page 39), it is important to confirm
the instrument’s Serial Number before proceeding. Operation of the wrong Analyzer could
result in water leakage from the sample vessel when it is removed during this procedure.
5) Press Enter to continue and wait while the sample temperature stabilizes and the
sample line is drained. Enter the certified sucrose and 1,4-benzoquinone standard
values from the Certificate of Analysis in the System Suitability Kit at the prompt.
6) Press Enter to enable the Controller’s Edit Mode and the flashing block cursor
becomes an underscore.
Fig 6-24 : System Suitability
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