1、Meets standards | ||
Meets the standard "HJ637-2018 Water Quality - Determination of Petroleum and Fats/Oils - Infrared Spectrophotometric Method" | ||
２、Technical Principle: | ||
According to the HJ637-2018 standard, extract oil substances from water using carbon tetrachloride, then isolate impurities and moisture with anhydrous sodium sulfate, separating the oil and carbon tetrachloride solution. Determine the total extract oil content. Additionally, the extract can be adsorbed with magnesium silicate, and after removing polar substances like animal and vegetable oils, the petroleum content is measured. The contents of the total extract and petroleum are both determined by the wave numbers of 2930 cm.-1（CH2The stretching and bending vibration of the C-H bond in the group), 2960 cm-1（CH3Intramolecular C-H stretching vibration) and 3030 cm-1Absorbance A at the band of (the stretching vibration of C-H bonds in the aromatic ring)2930、A2960With A3030Calculate accordingly. The content of vegetable and animal oils is determined by subtracting the petroleum content from the total extract. | ||
3. Department of Instrument Usage: | ||
Environmental Monitoring Systems, Petroleum & Chemical Industry, Hydrology & Water Conservancy, Potable Water SupplyCompanyWastewater Treatment Plants, Thermal Power PlantsWelding materialsSteel companies, university research and teaching, agricultural environmental monitoring, railway environmental monitoring, automotive manufacturing, marine environmental monitoring, traffic environmental monitoring, environmental research laboratories, etc.Use. | ||
4. Instrument Application Range: | ||
This instrument is primarily used for measuring oil content in surface water, groundwater, industrial wastewater, oil fumes from the catering industry, welding wires, welding rods, soil, and solids. | ||
5、GH-800AModel Infrared Oil Content Analyzer Technical Specifications: | ||
Item | Description | |
Baseline Drift Less Than | No Drift (mechanical cutting edge used to eliminate baseline drift) | |
Low detection concentration | 0.002mg/L(Water Oil Content Concentration) | |
High detection concentration | 640000mg/L(Oil Content in Water) | |
Frequency Range | 3400cm-1～2400cm-1（2940nm～4167nm） | |
Wavelength accuracy | ±2cm-1 | |
Wavelength repeatability | ±2cm-1 | |
Absorbance range | 0.0000～3.0000 AU (i.e., Transparency Rate)100～1%T） | |
Basic Measurement Range | 0.20～120.00mg/L； | |
Repetitive | Relative Standard Deviation (RSD) < 1% (for standard oil samples with concentrations of 20-80 mg/mL) | |
Linear Correlation Coefficient | R＞0.999 | |
Sample analysis time | Full-spectrum scanning approximately30second | |
Spot multiple scans | Approx.10Second | |
Non-dispersive infrared scanner | Approx.2Second | |
Blank solvent zeroing | Automatic, no adjustment needed for fullness | |
Net Weight of Main Unit | 10kg | |
Use power | (220±22)VAC、(50±1)Hz | |
Utilize temperature and humidity | Temperature range: 5℃-35℃, humidity ≤ 80% | |
Main unit exterior dimensions | 470mm (L) × 330mm (W) × 150mm (H) | |
Display Function | 12-inch LCD display, capable of directly scanning sample spectrum on the LCD screen, with a scanning step size not exceeding 5nm. | |
Measurement Mode | The instrument can operate independently of a computer, including both scanning measurement and non-dispersive measurement modes. | |
Data Storage | Large data storage capacity, the instrument itself has a storage capacity of 32G, capable of storing tens of thousands of detection data. | |
Printing System | Supports external printing system | |
6、Software System | ||
1. [Sample Registration]: Sample information should at least include the sample name, tested items, testing standards, sample submission date, quantity, submitting unit, sampling location, and sampler. | ||
2. **Measurement**: Equipped with at least two measurement modes – fixed-point and scanning – for direct reading of oil content in samples, eliminating the need for manual calculation. | ||
3. [Inspection Report]: Must include sample information, test results, sample spectrum, calibration coefficients, working curve, and correlation coefficients, etc. | ||
4. [Working Curves]: Ability to create and save, retrieve working curves; over 10 curves available. | ||
5. **Calibration Coefficient**: Measure or modify the calibration coefficient. | ||
6. [Reagent Purity Testing]: Capable of testing the purity of extraction reagents. | ||
7. Utilize | ||
Interface: USB interface. | ||
2. Equipped with extraction device, marked recovery rate ≥95%. | ||
3. Measurement Range: Can measure by adjusting the extraction ratio | ||
4. Curve Range:Curve Range: 0-100 mg/L (4 cm cuvette)。。 | ||
5. Detection Limit: ≤0.2 mg/L. | ||
6. Repeatability: ≤0.5%. | ||
7. Absorbance range: 0.0000～2.0000 A. | ||
8. Available as extractants are non-hydrocarbon organic solvents such as S-316 and tetrachloroethylene. | ||
8、Instrument application fields and national standards: | ||
Applying Unit | Standard of Execution | |
Environmental monitoring stations, determination of domestic and industrial wastewater | GB8978—1996Comprehensive Wastewater Discharge Standards | |
Foodservice and beverage industry | GB18483—2001Food Service Industry Fume Emission Standards | |
Municipal wastewater detection station or treatment plant | GB18918—2002Urban Sewage Treatment Plant Emission Standards | |
Municipal Water Supply Company or Public Waterworks Company | GB3838—2002Surface Water Environmental Quality Standards | |
Petroleum and petrochemical companies | GB3551—83 Petroleum Refining Industry Water Pollutant Emission Standards | |
Water Utility Company | GB5750—2006Life-Water Standard Test Method | |
Power Plant Environmental Monitoring Station | GB8978—1996Comprehensive Wastewater Discharge Standards and Other Standards | |
Wastewater Monitoring in the Smelting Industry | GB13456—92Steel Industry Water Pollutant Emission Standards | |
Hydrological Environment Monitoring Station | GB3838—2002Surface Water Environmental Quality Standards | |
