Instrument Principle:

When monochromatic light passes through the measured solution, its energy is absorbed. The intensity of light absorption is proportional to the concentration of the substance being measured, in accordance with the Lambert-Beer Law: A = log(1/T) = log(I?/I) = a × b × c

According to the standard 《HJ 637-2018 Water Quality - Determination of Petroleum and Animal Oils - Infrared Spectrophotometry》, petroleum substances in water are extracted using carbon tetrachloride to determine petroleum content.

Applicable Standards:

Complies with standard HJ 637-2018 《Water Quality - Determination of Petroleum and Animal and Vegetable Oils - Infrared Spectrophotometry》

Complies with standard HJ 1077-2019 《Stationary Source Emission - Determination of Oil Fume and Oil Mist - Infrared Spectrophotometry》

Complies with standard: HJ 1051-2019 《Soil - Determination of Petroleum - Infrared Spectrophotometry》

Complies with standard GB 18483-2001 "Emission Standard for Cooking Fume"

Complies with standard GB 3838-2002 "Environmental Quality Standards for Surface Water"

Complies with standard GB 18918-2002 "Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant"

Complies with petroleum standard SY/T 0530-2011 "Determination of Oil Content in Oilfield Produced Water by Spectrophotometry"

Complies with oilfield standard DB65/T 3998-2017 "Pollution Control Requirements for Comprehensive Utilization of Oily Sludge in Oil and Gas Fields"

Technical Parameters

l Uses pulsed light source for receiving information output

l Technical principle: Motor subdivision drive grating spectrophotometry technology

l Cooling technology: Semiconductor cooling cold light source to eliminate temperature error

l Baseline drift correction system, output signal without drift

l Blank solvent zeroing: Automatic saving; measurement data: Automatic calculation of results

l Instrument scanning range: 3400 cm?1 to 2400 cm?1 (2930 cm?1, 2960 cm?1, 3030 cm?1)

l Absorbance range: 0.00000–2.00000 AU

l Measurement range: 0–80,000.00 mg/L

l Resolution: 0.001 mg/L

l Maximum measurement concentration: 100

l Wavenumber accuracy and repeatability: ±0.5 cm?1

l Linear correlation coefficient R > 0.999

l Methyl resolution > 2%

l Sample analysis time: 0–60 seconds

l Ambient temperature: 2°C–40°C; relative humidity: 10%–90%

Instrument Functions

l Measurement targets: Oil content in water, oil in soil, oil in catering fumes, oil in gas, and other measured substances

l Continuous spectrum scanning function, high-contrast sample spectra, accurately distinguishing oil content results, automatic calculation, automatic saving of 100,000 pieces of measurement information, results, test spectra, set conditions, etc. Query and print as test reports, with functions such as mathematical statistics, spectrum display, storage, etc.

l Visual operation interface, guided operation procedure.

l Unaffected by room temperature changes; continuous analysis and testing with automatic temperature compensation.

l Analysis system compatible with Windows 7, Windows 10, Windows 11.

l Fast calibration mode, meeting both standard and metrological specifications, while also complying with international standards.

l Uses imported optical platform system, short optical path, high energy, meeting infrared spectrum characteristics requirements, good stability, high signal-to-noise ratio.

l Detachable integrated optical system, making the instrument compact, with short optical path and high energy; spectrally separated before absorption, meeting infrared spectrum characteristics requirements, good stability, high signal-to-noise ratio.

l 24-bit, 500 kHz A/D conversion, high-speed USB 2.0 interface, compatible with USB 3.0 high-performance electronic system, achieving real-time spectral data acquisition, ensuring data authenticity and reliability.

l Uses advanced switching power supply light source, reducing light source heat intensity to facilitate system heat dissipation, while simplifying instrument structure and improving reliability by reducing mechanical chopper components.

l Unaffected by room temperature changes: Continuous analysis and testing with automatic temperature compensation.

l Compatible with various environmentally friendly reagents.

l Features instrument calibration coefficient function: Single-point fast calibration, standard curve calibration, and calibration with three national standard reference materials.

l Storage function: The main unit can store sample number, detection time, detection results, type of extraction agent, and other information.