GH-800A Infrared Spectrophotometric Oil Analyzer

Meets the standard "HJ637-2018 Water Quality - Determination of Petroleum and Fats/Oils - Infrared Spectrophotometric Method"
Meets the standard "GB16488-2018 Determination of Water Quality, 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