GH-800B Portable Infrared Spectrophotometric Oil Analyzer

Meets National Standards

Meets National Standard "HJ637-2018 Water Quality: Determination of Petroleum and Fats-Oils by Infrared Spectrophotometry"

Meets National Standard "GB16488-1996 Determination of Water Quality, Petroleum and Vegetable Oils by Infrared Spectrophotometry"

2. Technical Principle:

In accordance with the GB16488-1996 and HJ637-2012 national standards, oils in water are extracted using tetrachloroethylene, followed by isolation of impurities and moisture with anhydrous sodium sulfate to separate the oil and tetrachloroethylene solution, and then the total oil content of the extract is determined. The extract can also be adsorbed with magnesium silicate, and after removing polar substances like animal and vegetable oils, the oil content is measured. The total extract and oil content are calculated based on the absorbance at the spectral bands of 2930 cm-1 (C-H stretching vibration in CH2 group), 2960 cm-1 (C-H stretching vibration in CH3 group), and 3030 cm-1 (C-H stretching vibration in aromatic ring), denoted as A2930, A2960, and A3030. The content of animal and vegetable oils is calculated as the difference between the total extract and the oil content.

3. Department of Instrument Use:

Environmental monitoring systems used in petrochemical, hydrological, water supply companies, wastewater treatment plants, thermal power plants, welding materials, steel enterprises, university research and teaching, agricultural environmental monitoring, railway environmental monitoring, automotive manufacturing, marine environmental monitoring, traffic environmental monitoring, and environmental research laboratories.

4. Instrument Application Range:

This instrument is primarily used for measuring the oil content in surface water, groundwater, industrial wastewater, cooking fumes in the catering industry, welding wires, welding rods, soil, and solids.

5. Technical Specifications of GH-800 Infrared Oil Content Analyzer:

Item Description

Baseline Drift No Drift (mechanical cutting light used to eliminate baseline drift)

Lowest Detectable Concentration: 0.002 mg/L (Oil Content in Water)

zuiHigh detection concentration 640,000 mg/L (oil content concentration in water)

Wavenumber range: 3400 cm^-1 to 2400 cm^-1 (2940 nm to 4167 nm)

Wavenumber accuracy ±1 cm⁻¹

Wavenumber repeatability ±1 cm⁻¹

Absorbance range: 0.0000 to 3.0000 AU (equivalent to transmittance 100 to 1% T)

Basic Measurement Range: 0.00～800.00 mg/L

Repeatability Relative Standard Deviation (RSD) < 0.8% (for standard oil samples with a concentration of 20-80 mg/mL)

Linear Correlation Coefficient R > 0.999

Sample Analysis Time: Full Spectrum Scan in Approximately 30 Seconds

Spot multiple scans, approximately 10 seconds

Non-dispersive infrared scan, approximately 2 seconds

Zeroing out blank solvent automatically; no need to adjust to full scale

Net Weight of Main Unit: 8 kg

Power Supply Portable Charger

Use Temperature and Humidity: Temperature range 5℃-35℃, humidity ≤80%

Host dimensions: 450mm (Length) × 330mm (Width) × 230mm (Height)

6. Instrument Application Fields and National Standards Compliance:

Applying Unit | National Standard Implemented

Environmental Monitoring Stations, Determination of Domestic and Industrial Wastewaters, Comprehensive Emission Standard for Wastewaters GB8978—1996

Food and Beverage Industry - GB18483-2001 Standard for Fume Emission from Catering Establishments

Municipal Drainage Inspection Station or Wastewater Treatment Plant, GB18918—2002 Urban Wastewater Treatment Plant Emission Standard

Municipal Water Supply Company or Tap Water Company GB3838-2002 Surface Water Environmental Quality Standard

Petroleum and Petrochemical Enterprises - GB3551-83 Standard for Emission of Water Pollutants from Petroleum Refining Industry

Water Supply Company GB5750—2006 Standard Test Methods for Drinking Water

Power Plant Emission Monitoring Station, GB8978-1996 Integrated Wastewater Emission Standard and other standards

Waste Water Monitoring in the Smelting Industry - GB13456-92 Emission Standard for Water Pollutants from Iron and Steel Industry

Hydrological Environment Monitoring Station GB3838-2002 Surface Water Environmental Quality Standard