The online monitoring capability of this total organic carbon analyzer makes it suitable for the electronics and food industries.
Oxidation organism by UV lamp and convert organic stuff into carbon dioxide, which detection adopted by direct conductivity method. The total organic carbon is the difference of the total carbon (TC)concentration in samples tested after oxidation and not oxidation of the sample total inorganic carbon(TIC),namely: TOC = TC- (TIC).
The total organic carbon analyzer features a pump-free design, eliminating the need for a pressure-reducing valve for online testing. Equipped with a high-performance CPU processor, it enhances functionality, processing speed, and accuracy. Its large storage capacity allows for real-time raw data queries. The absence of a pump and pressure valve simplifies installation, reduces material use, and stabilizes flow rates.
| Model | TOC-A20 |
| Display Screen | Color touch screen |
| Conductivity Detection Range | 0.055µs/cm-8.000µs/cm |
| Measure Range | 0.001mg/L～1mg/L(1～1000ppb) |
| Accuracy | ±3% |
| RSD | Repeatability ≤ 3% |
| Resolution | 0.001mg/L |
| Response Time | 5mins |
| Measuring Limit | 0.001mg/L |
| Sample Temperature | 1-99℃ |
| Applied Range | Online/Offline/ Cleaning Validation |
| Audit Trail Records | ≥3years storage |
| Authority Management | User name and password login |
| Print Function | External Printer |
| Data Copy | USB disk to export the data |
| Audit Trail Function | Optional |
| Expansion Port | Ethernet port 232 serial port power output port 4-20MA signal output |
| Power Supply | AC100-260V, 50/60Hz |
| Consumption | 120W |
| Size(W×D×H)(mm) | 400x240x270 |
| Shipping Size(W×D×H)(mm) | 310x450x460 |
| N.W./G.W. (kg) | 8.5/18.5 |
The TOC-A20 is an advanced version of the original offline total organic carbon analysis instrument, designed to support both online and offline testing modes. It can sequentially measure three points online, making it versatile and suitable for a wide range of applications. This flexibility meets various on-site requirements and significantly reduces the cost of implementing online monitoring for customers.
Application Fields:
Online monitoring and laboratory testing of pharmaceutical water (purified water, injection water)
Cleaning validation
Electronic industry
Food industry
1. What is the margin of error for TOC Analyzer? What are the reasons for the error?
Our total organic carbon analyzer is almost error-free. The quality of the sample is the root cause of the error, for example, if there are small particles or residues in the sample, there will be an error in the result.
2. Difference between the direct method and the differential subtraction method for TOC Analyzer?
The carbon in all inorganic carbonates in water is called total inorganic carbon (IC), and the carbon in all organic matter is called total organic carbon (TOC), and the total amount is called total carbon (TC).
Differential subtraction method (TC-IC method): the specimen is introduced into the UV-irradiated persulfate reactor and phosphate IC reactor, respectively, so that the organic compounds and inorganic carbonates are decomposed and converted into CO2. CO2 is blown out by high-purity nitrogen gas and then enters into a non-dispersive infrared detector (NDIR) sequentially after being dehumidified by a desiccant tube. Using the proportionality of carbon content between CO2 and TOC for the quantitative determination of TC and IC respectively, the difference between TC and IC is TOC, i.e. TC-IC=TOC.
Direct method (NPOC): TOC can be measured directly by acidification and aeration of the specimen to remove IC, and then injected into the UV persulfate reactor. When volatile organic compounds are present in the specimen, they may be removed during the aeration process. Therefore, the TOC measured in this way can be called NPOC, i.e. non-volatile organic carbon. And generally contain less volatile organic compounds in the water sample, the impact on the determination of NPOC is negligible, that is, NPOC = TOC.
3. Can the sample contain a catalyst?
No, the catalyst contains carbon, which will affect the test results.
4. What information is required?
Sample source, concentration.
TC-IC mode: Difference subtraction method, suitable for samples with inorganic carbon less than 30% of total carbon;
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