Benzene Series Online Analyzer
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BENZENE SERIES ONLINE ANALYZER (GAS CHROMATOGRAPHY)
Our company has developed the Vair-9005 Benzene Series Online Analyzer (Gas Chromatography) by combining the principle of normal temperature enrichment/high temperature thermal desorption analysis with hydrogen ion flame detection technology (FID). It meets the standard of "Determination of Benzenes in Ambient Air by Solid Adsorption Desorption Thermal Desorption-Gas Chromatography (HJ 583)"
The Vair-9005 Benzene Series Online Analyzer has built-in room temperature enrichment module, which can capture the benzene series components of different concentrations in ambient air at room temperature, carry out effective concentration, and then conduct measurement and analysis through high temperature desorption, and achieve accurate realization of ppb level measurement
FEATURES :
- No preprocessing module, easy and simple operation, convenient and quick maintenance
- Built-in enrichment module, more compact structure, shorter analysis path, avoid loss of test sample gas
- Electronic flow control of gas routing, strong anti-interference performance, high accuracy and accuracy of test results
Analysis Sample Range | Benzene series (BTEX) |
Linearity | ≥0.995 |
Detection Limit | Benzene series ≤0.05nmol/mol |
24h Zero Drift | ≤±0.02μmol \ mol |
24h Span Drift | ≤±5% |
Repeat ability | ≤5% |
Accuracy | ≤10% |
High Concentration Residue | ≤1% |
Analysis Cycle | 15 min |
Sample Injection Method | Low temperature enrichment thermal desorption desorption injection technology |
Column Type | Packed column for benzene series |
Column Heating Method | Column thermostat heating |
Column Temperature Range | 80~120℃ |
Enrichment Temperature | 30℃ |
Analytical Temperature | 250℃(Adjustable) |
Analytical Heating Rate | Heating rate up to 30°C/s |
Gas Path Control Method | Whole path MFC mass flow control |
Detector Type | FID hydrogen flame ionization detector |
Accuracy Relative Error | Accuracy of all components≤5% |
Precision Relative Error | Precision of all components is less than or equal to 5% |
System Residual | System residual concentration of 90% components ≤ 0.1 nmol/mol |
Measurement Range | 0~300 nmol/mol |
Power / Power Supply | <3000W, 220V/50Hz |
Operating Temperature | 0~30℃ |
Ambient Humidity | ≤85%RH |
Gas Source Requirement | Carrier gas: high purity Nitrogen (≥99.999%) Combustion gas: high-purity Hydrogen (≥99.999%) Supporting gas: zero air (HC≤5ppb) Compressed air source: >0.45MPa |
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