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 measured substance, in accordance with the Lambert-Beer law: A=log(1/T)=log(I0/I)=a×b×c

Standard "HJ 637-2018 Water Quality - Determination of Petroleum and Animal Oils - Infrared Spectrophotometry" uses tetrachloromethane to extract petroleum substances from water and measure petroleum content.

Compliance 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 Mist - Infrared Spectrophotometry"

Complies with standard: HJ1051-2019 "Soil - Determination of Petroleum - Infrared Spectrophotometry"

Complies with standard GB18483-2001 "Emission Standard for Cooking Fume"

Complies with standard GB3838-2002 "Environmental Quality Standards for Surface Water"

Complies with standard GB18918-2002 "Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant"

Complies with petroleum standard SY/T0530-2011 "Determination of Oil Content in Oilfield Produced Water by Spectrophotometry"

Complies with oilfield standard DB65/T3998-2017 "Pollution Control Requirements for Comprehensive Utilization of Oily Sludge in Oil and Gas Fields"

Technical Parameters

l Uses pulsed light source for information reception and output

l Technical principle: Motor subdivision-driven grating spectrophotometry

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, soil, catering oil fumes, gases, and other measured substances

l Continuous spectral scanning function, high-contrast sample spectra, accurate determination of oil content results, automatic calculation, automatic storage of 100,000 data entries including results, test spectra, and set conditions; query and print detection reports; features mathematical statistics, spectral display, storage, and other functions

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, as well as international standards

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

l Detachable integrated optical system, compact instrument size, short optical path, high energy, spectrally separated before absorption, meeting infrared spectral requirements, good stability, high signal-to-noise ratio

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

l Uses advanced switching power supply light source, reducing heat generation for better system cooling, while minimizing mechanical chopper components to simplify instrument structure and improve reliability

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

l Compatible with multiple environmentally friendly reagents

l Instrument calibration coefficient function: Single-point rapid calibration, standard curve calibration, and three national standard substance calibrations

l Storage function: Main unit can store sample ID, detection time, detection results, extraction solvent type, and other information