Qikun Technology CW-700M Online Total Organic Carbon Analyzer
Qikun Technology CW-700M Online Total Organic Carbon AnalyzerIt is an analytical instrument independently developed and produced by Hangzhou Qikun Technology Co., Ltd. for determining the total organic carbon concentration in water samples, which can detectTOCConcentration from0.001 mg/L~100.0 mg/LThe water sample has high sensitivity, accuracy, and good stability.
1. System Overview
CW-700MIt is an online detection instrument with a simple structure. The main components are installed on the host, and before measurement, the instrument needs to be connected to the gas circuit and prepare reagents. The instrument is controlled by specialized software installed on the instrument display screen to perform data processing tasks such as measurement, calibration, and printing.
Working principle
Using UV persulfate oxidation-NDIRDetection principle. A sample is fully oxidized and decomposed intoCO2The other sample was decomposed into inorganic carbon using an acid reagentCO2.CO2Under the action of carrier gas, it enters the non dispersive infrared detector after drying and impurity removal(NDIR)Measure to determine the carbon concentration in the sample.
2. Measurement mode
TCmode |
TCThe mode is used to determine the total carbon in the sample. The sample is decomposed in a UV reactor under the action of oxidants, acid reagents, and UV radiationCO2. |
TICmode |
TICThe mode is used to determine the inorganic carbon (carbonate and bicarbonate) in the sample. The sample is in a UV reactor, and the carbonate and bicarbonate portions are decomposed intoCO2. |
TOCmode |
TOCThe mode is used to determine the organic carbon in the sample.TOCUsing subtraction method for determination, i.eTOC=TC-TICSamples are measured sequentiallyTCandTICMeasured using subtraction methodTOCIncluding volatile and non-volatile organic carbon. |
NPOCmode |
TICThe mode is used to determine the non blowable organic carbon in the sample. The sample is in a UV reactor, and inorganic carbon is decomposed intoCO2And it will be blown out, while volatile organic compounds will also be blown out at the same time. Then, the organic carbon portion decomposes intoCO2. |
3. Technical Parameter
operate |
Analysis method: UV persulfate oxidation-NDIRDetection principle. Detectable items:TC、IC、TOC、NPOC TOCDetection range:0.001~100.0mg/L TOCDetection accuracy:0.001mg/L TOCAccuracy error: ±5% Repetitive error: ≤3% Analysis time:3~8min Zero drift: ≤ ±2%/D Range drift: ≤ ±2%/D |
Test conditions |
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 |
Power Supply:220V AC≤±10% 50Hz Power:150W |
size |
Basic dimensions:47cm×48cm×116cm |
4. Performance characteristics
l conform toEP、USPreach2015Requirements of the Chinese Pharmacopoeia;
l Three detection modes:TC、TIC、TOC、NPOC, conducted in the same reactor;
l Highly reflective gold-plated gas chamber, highly concentrated infrared light source, and highly sensitive infrared detector ensureNDIRExcellent performance; measureppbThe level of data has sufficient sensitivity and accuracy;
l Precise electromagnetic metering pump ensures the accuracy and stability of sample injection volume;
l Double tube electronic condensation dehydration technology;
l Real time visualization of detection curves, more intuitive;
l Real time self-monitoring function for temperature, pressure, and flow in multiple locations;
l The curve can be customized according to the measurement range to meet the measurement requirements of any water sample.
5. measuring software
Software meetsGMPComputer System Validation:
l Electronic Signature
1)Login through username and password.
2)Passwords have length requirements to enhance security.
3)Equipped with manual screen locking function to ensure operational safety.
l Rights Management
1)Multi level permission settings.
2)Administrators can grant different permissions to other operators to ensure that they only have permissions equivalent to their job functions.
l data integrity
1)It has audit tracking function and cannot be closed.
2)All test results are saved and cannot be modified or deleted.
3)All operations are recorded (as long as there are traces of personnel entering).
4)If the detection method is modified, the modified parameters will be recorded.
5)Data can be exported and backed up to protect stored data for future access.
6. Configuration List
Standard:
ITEM NAME |
Specification and model |
quantity |
unit |
Host of Total Organic Carbon Analyzer |
CW-700M |
1 |
tower |
power line |
220V |
1 |
root |
Computer communication cable |
/ |
1 |
root |
reagent bottle |
250ml |
2 |
individual |
Cylinder connection |
/ |
1 |
cover |
tool |
hex key |
1 |
cover |
7. Consumables
l Ultraviolet lamp
l Carrier gas (high-purity nitrogen)
l Acid reagent (phosphoric acid)
l Oxidizing agent (sodium persulfate)