![2.3 The UV/Heated Persulfate Method of Analysis](/images/new-backgrounds/53664/5366441x1.webp)
Total Organic Carbon Analyzer | Theory of Operation | |
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2.3 The UV/Heated Persulfate Method of Analysis
In the UV/Heated Persulfate Method as used by the Model 6750, the sample is initially mixed with acid and directed to the sparger. For
NDIR analysis of CO2 is specific and
For the TC analysis, the combined liquid/gas sample is sent directly to the reactor, where all carbon (including the volatile HC) is converted to CO2. The NDIR thus measures the TOTAL CO2 (including that
generated from the TIC, volatile HC and NPOC) and reports it as "TC."
The important thing is that all measurements are made on the same sample, eliminating potential sample introduction errors and multiple sampling inaccuracies.
Teledyne Analytical Instruments | 9 |