Total organic carbon (TOC) is the amount of carbon bound in an organic compound and is often used as a non-specific indicator of water quality or cleanliness of pharmaceutical manufacturing equipment.
A typical analysis for TOC measures both the total carbon present as well as the so called "inorganic carbon" (IC), the latter representing the content of dissolved carbon dioxide and carbonic acid salts. Subtracting the inorganic carbon from the total carbon yields TOC. Another common variant of TOC analysis involves removing the IC portion first and then measuring the leftover carbon. This method involves purging an acidified sample with carbon-free air or nitrogen prior to measurement, and so is more accurately called non-purgeable organic carbon (NPOC). (Adapted from Wikipedia)
This Sievers 800 TOC analyzer we have has an aux port, RS-232 port & parallel printer port. It operates stand alone and can also be computer operated. An autosampler is also installed.
- Range: 0.05 ppb to 50,000 ppb.
- On-line Precision: ±3% of Total Carbon value.
- On-line Accuracy: ±3% of TC value (TC > 100 ppb).
- Interferences: Insensitive to halogenated hydrocarbon interference.
- Display Readout: 3 significant digits.
- Calibration: 12 month stability, typically.
- Analysis Time: 6 minutes.
- Sample Temperature: 1-100C (32-212F).
- Ambient Temperature: 10-40C (50-104F).
- Sample Pressure: Up to 100 psi.
- Sample Flow Rate: 30-220 mL/minute.
- Instrument Specifications:
- Outputs: (1) 0-10V port, (1) 4-20 mA port, (1) RS-232, (1) parallel printer port, (2) alarms
- Display: Back-lit display screen.