GH-800A Infrared Spectrometer for Oil Analysis

1、meet the standard

meet the standard“HJ637-2012Water quality - Determination of petroleum, animal and vegetable oils - Infrared photometric method
meet the standard“GB16488-1996Water quality - Determination of petroleum, animal and vegetable oils - Infrared photometric method

2Technical principle:

according toGB16488-1996andHJ637-2012Standard: Extract oil substances from water using carbon tetrachloride, then use anhydrous sodium sulfate to isolate impurities and moisture, separate the solution of oil and carbon tetrachloride, and determine the total oil content of the extract. At the same time, the extract can be adsorbed with magnesium silicate, and after removing polar substances such as animal and vegetable oils, petroleum can be determined. The total extract and petroleum content are both determined by wave numbers of 2930cm^-1（CH₂The stretching vibration of C-H bond in the functional group), 2960cm^-1（CH₃The stretching vibration of C-H bond in the functional group and 3030cm^-1The absorbance A at the spectral band of C-H bond stretching vibration in aromatic rings₂₉₃₀、A₂₉₆₀And A₃₀₃₀Perform calculations. The content of animal and vegetable oils is calculated based on the difference between the total extract and petroleum content.

3. Department using the instrument:

Environmental monitoring system, petrochemical, hydrological and water conservancy, tap watercompanySewage treatment plants, thermal power plantsWelding materialsTesting rooms and laboratories for steel enterprises, university research and teaching, agricultural environmental monitoring, railway environmental monitoring, automobile manufacturing, marine environmental monitoring, transportation environmental monitoring, environmental research, etcuse.

4. Instrument application scope:

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

5GH-800ATechnical specifications of infrared oil analyzer:

Project

Explanation

Baseline drift less than

No drift (using mechanical cutting to eliminate baseline drift)

Low detectable concentration

0.002mg/L(Oil concentration in water)

High detection concentration

640000mg/L(Oil concentration in water)

Wavenumber range

3400cm^-1～2400cm^-1（2940nm～4167nm）

wavelength accuracy

±2cm^-1

Wave number repeatability

±2cm^-1

Range of absorbance

0.0000～3.0000AU(i.e. transmittance)100～1%T）

Basic measurement range

0.20～120.00mg/L；

repetitiveness

Relative standard deviation RSD<1% (standard oil samples with concentrations of 20-80mg/mL)

Linear correlation coefficient

R＞0.999

Sample analysis time

Full spectrum scanning approximately30second

Multiple fixed-point scans

about10second

Non dispersive infrared scanning

about2second

Zero adjustment of blank solvent

Automatic, no need to adjust the fullness

Net weight of the host

10kg

Use power supply

(220±22)VAC、(50±1)Hz

Use temperature and humidity

Temperature range 5 ℃ -35 ℃, humidity ≤ 80%

external dimensions

470mm (length) ×330mm (width) ×150Mm (height)

display function

12Inch LCD display screen, which can directly scan sample spectra on the LCD screen, with a scanning step of no more than 5nm

Measurement Mode

The instrument can work independently without a computer, including two modes: scanning measurement and non dispersive measurement

data storage

Large data storage capacity, the instrument has a storage capacity of 32GB and can store up to tens of thousands of detection data

Printing system

Support external printing system

6、software system

1.Sample Registration: Sample information should include at least the sample name, tested item, testing standard, sample delivery date, sample quantity, testing unit, sampling location, and sampler.

2.Measurement: At least two measurement modes, fixed-point measurement and scanning measurement, are available to directly read the oil content in the sample without the need for manual calculation.

3.【 Test Report 】: It should contain at least sample information, test results, sample spectra, calibration coefficients, working curves, and correlation coefficients.

4.: You can create your own work curve, save and call it, with more than 10 curves.

5.Correction factor: The correction factor can be measured or modified.

6.【 Purity testing of reagents 】: It can detect the purity of extraction reagents.

7. Use

1.Interface: USB interface.

2.Equipped with extraction device, with a spiked recovery rate of ≥ 95%.

3.Measurement range: By changing the extraction ratio, 0-100% oil can be measured.

4.Curve range:Curve range: 0-100mg/L（4Cm color pool)..

5.Detection limit: ≤ 0.2mg/L.

6.Repeatability: ≤05%.

7.Absorption range: 0.0000-2.0000A.

8.Other non hydrocarbon organic solvents such as S-316, tetrachloroethylene, and trichlorotrifluoroethane can be used as extractants.

8、Application fields and national standards for instruments:

Application Unit

Execution standards

Measurement of environmental monitoring stations, domestic sewage, and industrial wastewater

GB8978—1996Comprehensive Wastewater Discharge Standard

Small and medium-sized catering industry

GB18483—2001Emission Standards for Cooking Fumes in the Catering Industry

Municipal drainage testing station or sewage treatment plant

GB18918—2002Pollutant Discharge Standards for Urban Sewage Treatment Plants

Urban water supply company or water supply company

GB3838—2002Surface Water Environmental Quality Standards

Petroleum and petrochemical enterprises

GB3551—83 Emission Standards for Water Pollutants in Petroleum Refining Industry

Water company

GB5750—2006Standard test method for drinking water used in daily life

Environmental monitoring station for thermal power plants

GB8978—1996Comprehensive sewage discharge standards and other standards

Monitoring of wastewater in the smelting industry

GB13456—92Emission Standards for Water Pollutants in the Steel Industry

Hydrological Environment Monitoring Station

GB3838—2002Surface Water Environmental Quality Standards