Ionics Instruments 2004 Page 4-23 DLM 30007-08 Rev. A
that the pH of the analyzer waste stream is <2. The flow rate for the oxidizer
will depend on the levels of TOC in the samples and can be independently set
for on-line sampling and grab sampling. The recommended reagent flow rates
for different TOC concentrations are shown in Table 2.
Table 2. Recommended Reagent Flow Rates
Recommended Oxidizer Flow Rates
TOC Concentration Oxidizer Flow Rate
25-50 ppm 2.0 – 7.0 µL/min.
10-25 ppm 1.0 – 4.5 µL/min.
5 to 10 ppm 0.5 – 2.0 µL/min.
1-5 ppm 0.5 – 1.0 µL/min.
< 1 ppm 0.01 – 0.5 µL/min.
NOTE
If a specific application requires a broader TOC Concentration range, (from 0 to
5 ppm), it is acceptable to set the oxidizer flow rate from 0.01 – 1.0 µL/min.
Recommended Acid Flow Rates
IC Concentration With IC Removal Module
50 - 100 ppm 1.5 µL/min. 3.0 µL/min.
0-50 ppm 0.75 µL/min. 1.5 µL/min.
Deionized water 0.2 µL/min. Not applicable
For all samples, verify pH of waste is ~2, adjust acid flow as necessary
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