CW-700Total Organic Carbon Analyzerprinciple

CW-700typeTotal Organic Carbon AnalyzerAdopting the principle of UV persulfate oxidation NDIR detection.

subtraction method

The sample is fully oxidized and decomposed into carbon dioxide and water by UV persulfate, and after condensation and dehydration, the carbon dioxide is measured using a non dispersive infrared detector (NDIR) to determine the total carbon TC content in the sample; The inorganic carbon in the sample is decomposed into carbon dioxide and water using an acid reagent. After condensation and dehydration, the carbon dioxide is measured using a non dispersive infrared detector (NDIR) to determine the total inorganic carbon (TIC) content in the sample. Total organic carbon (TOC)=TC-TIC.

direct method

Firstly, the inorganic carbon in the sample is decomposed into carbon dioxide and water using an acid reagent to remove the total inorganic carbon TIC; Then, the organic carbon in the sample is decomposed into carbon dioxide and water by UV persulfate. After condensation and dehydration, the carbon dioxide is measured using a non dispersive infrared detector (NDIR) to determine the content of TOC in the sample.

CW-700Total Organic Carbon AnalyzerTechnical Parameter

Analysis method: UV persulfate oxidation NDIR detection principle

Detectable items: TC、IC、TOC、NPOC

TOCDetection range: 0.001～100.0mg/L

TOCDetection accuracy: 0.001mg/L

TOCAccuracy error: ≤ ±5%

Injection volume: 50-6000 µ l

Analysis time: 3-8 minutes

Repetitive error: ≤ 3%

Zero drift: ≤ ±2%/D

Range drift: ≤ ±2%/D

Test condition oxidant: Sodium persulfate solution

Acid reagent: phosphoric acid solution

Carrier gas: high-purity nitrogen (carbon dioxide free air)

Environmental requirements: Environmental temperature: 0-40 ℃

Relative humidity: ≤ 85%

Power Requirements: 220V AC ≤± 10% 50Hz

Power: 150W

Basic dimensions: 38cm × 30cm × 32cm

Weight: 20kg

CW-700Total Organic Carbon AnalyzerProduct Features

1. 7Inch touch screen, user-friendly interface, easy and convenient operation
2. Three detection modes: TC、TIC、TOC、NPOC， Conducted in the same reactor
3. Highly reflective gold-plated gas chamber, highly concentrated infrared light source, and highly sensitive infrared detector ensure excellent performance of NDIR; Measuring ppb level data has sufficient sensitivity and accuracy
4. Double tube electronic condensation dehydration technology
5. Real time visible detection curve, more intuitive
6. Precise electromagnetic metering pump ensures the accuracy and stability of sample injection volume
7. Real time self-monitoring function for temperature, pressure, and flow at multiple locations
8. Built in needle printer reduces space occupation
9. 2Annual data storage capacity, easy to query, and can be queried by time period
10. Equipped with password protection function
11. Suitable for measuring high salt samples and water samples with a high proportion of total inorganic carbon
12. Optional online module for online monitoring
13. Optional automatic sampler for unmanned operation, saving manpower and time
14. Complies with the international standard ISO8245, the National Environmental Protection Standard HJ501-2009 of the People's Republic of China, the National Metrological Verification Regulations JJG 821-2005 of the People's Republic of China, and the provisions of the Chinese Pharmacopoeia

CW-700Total Organic Carbon AnalyzerApplication scope

• Deionized water samples such as injection water and purified water
• Clean validation in the pharmaceutical industry
• Tap water, surface water
• Chemical water (cleaning water, cooling water, recycled water, etc.)
• Laboratory research