Instrument usage
Used for measuring total organic carbon in water bodies such as surface water, tap water, sewage, seawater, hydrogen peroxide, and industrial waterContent is used to comprehensively evaluate the degree of organic pollution in water bodies based on paleontological analysis.

Working principle diagram of ET1020A

application area
Environmental monitoring, urban water supply and drainage, disease control, chemical and power industries.

Compliant with standards
● DIN38409H3
● ENl484
● EPA415.1,415.3
● American Standard Method 5310B
Chinese National Standard GBl3193-91
Chinese Ministry of Health Drinking Water Standards 138

Working principle

When carbon containing compounds are burned in an oxygen rich environment, carbon is completely converted into CO₂Non dispersive infrared detector (NDIR) for detecting CO₂Convert the amount into the total carbon (Tc) content in the sample. Then, the sample is acidified, and when the pH value decreases, the carbonate and bicarbonate ions in the sample are converted into CO₂， CO₂Blown out and entering a non dispersive infrared detector (NDIR), Detected CO₂The quantity is converted into the content of total inorganic carbon (TIC). Subtracting the values of TC and TIC yields the total organic carbon (TOC) value.TOC=TC-TIC

Instrument characteristics
Control the heating temperature through software. The combustion temperature can be adjusted within the range of 200-950 ℃. Optional 680 ℃+catalyst or 900 ℃High temperature oxidation at ℃ using any recognized oxidation method.
Quantitative injection of sample rings with high accuracy and good reproducibility.
Inhalation injection method can continuously analyze samples.
Can tolerate suspended particles with a diameter of approximately 400 µ m in water samples, and is not easily clogged.
ETTOC Chinese operating software: the first TOC Chinese operating software in China. The software is based on the Windows interface and has powerful functionsEasy to operate and user-friendly interface.
The software displays real-time measurement maps for intuitive monitoring and analysis of the process.

ETTOC Chinese Total Organic Carbon Analysis Software

The ETTOC Chinese operating system runs under the Microsoft Windows program, and the operation status of various components and instrument parameters of the instrument are monitoredEstablishment and invocation of analysis methods, establishment of analysis programs, measurement, collection, and calculation of data, as well as quality assuranceThe generation of user reports is easily controlled.
Conduct status tests on various components of the instrument to ensure that each pump, valve, switch, etc. is operating normally.

Establish different analytical methods for specific samples. Set all parameters, including appropriate temperature, selection and labelingSample ring, injection volume, reagent volume, measurement time, repetition rate, gas flow rate, etc.

Establish analytical methods

Using multi-point calibration to establish a working curve can eliminate questionable calibration points and avoid errors caused by human factorsEnsure the linearity of the working curve.

Establish calibration curve

Multiple sample analysis sequences can be set up, with each sample using its own analysis method. Standard samples can be inserted to check the instrumentThe working status of the device.

Set up sample testing program

Comprehensive analysis process information can be obtained from the analysis main interface, including sample name, analysis method, operating status, and analysisAnalyze time, temperature, measurement results, numerical calculations, etc., and provide real-time analysis maps, allowing users to have a comprehensive understanding of the entire analysis processLike fingertips. After the analysis is completed, the original data will be automatically permanently saved and a user report will be generated.

Analyze the main menu

Technical Parameter
● Range: 0.5ppm -10000ppm
● Repeatability: 3% RSD
● Linear error:< 4%
TC detection rate: ≥ 95% (at a concentration of 10ppm)
TIC detection rate: ≥ 95% (at a concentration of 10ppm)
Analysis time: TC/TIC/TOC： 4-8 minutes, customizable
Analysis method: TIC： Phosphonic acid acidification
TC： 680 ℃ when using catalyst
900 ℃ without catalyst
Adjustable between 200-950 ℃
TOC： Obtained by TC-TIC subtraction
Injection method: inhalation, sample ring quantification
Sample Ring: 25 µ L, 50 µ L, 100 µ L, 200 µ L, 400 µ L, optional
● Carrier gas: 99.5% oxygen with CO2, CO, and THC content less than 1ppm; Pressure 50-60PSI (345-415kPa)
● Software: Chinese ETTOC operation software
Transmission standard: RS-232-C standard
● Size: 35cmX28cmX48cm
Weight: 16kg

Application examples
Analysis of Salt Containing Samples: Continuous Measurement of 500 Samples
Sample composition: Contains 100ppm TOC+10ppm TIC, 3% sodium chloride salt solution
Measurement result: TOC average=101.19ppm average error=1.19% RSD=1.05%<2