Portable infrared oil analyzer

Portable infrared oil analyzerCompliant with standards:

National Environmental Standard "HJ637-2018 Water Quality - Determination of Petroleum, Animal and Plant Oils - Infrared Spectrometric Method"

National standard "GB18918-2002 Pollutant Discharge Standard for Urban Sewage Treatment Plants"

National standard "GB8978-1996 Comprehensive Wastewater Discharge Standard"

National standard "GB18466-2005 Discharge Standards for Water Pollutants in Medical Institutions"

Technical principle:

According to HJ637-2018 standard, oil substances in water samples are extracted with tetrachloroethylene to determine oil content. Then, the extract is adsorbed with magnesium silicate to remove polar substances such as animal and plant oils, and petroleum products are determined. The content of oil and petroleum is calculated based on the absorbance A2930, A2960, and A3030 at spectral bands with wave numbers of 2930 cm-1 (stretching vibration of C-H bond in CH2 group), 2960 cm-1 (stretching vibration of C-H bond in CH3 group), and 3030 cm-1 (stretching vibration of C-H bond in aromatic ring), respectively.

The content of animal and plant oils is calculated based on the difference between the content of oil and petroleum.

Function/Features:

10 inch touch tablet computer with built-in printer, no need for keyboard or mouse, no need for external computer or printer.

Exclusive ABS instrument protective case, sturdy and durable, with handle and pull rod, easy to carry.

Strong software compatibility, users can choose WIN7, 8, or 10 operating systems according to their habits.

Advanced WIFI communication method, the tablet can be embedded inside the instrument or removed for long-distance use, adapting to complex outdoor working environments.

Built in high-power lithium battery, with a full charge working time of not less than 8 hours.

The software interface displays real-time icons of battery usage, making it easy for customers to use normally.

● Software function *: Set measurement parameters for oil in water, cooking oil fume, and solid oil according to national standards, automatically calculate the final result, store unlimited standard curves, design fault-tolerant processing, flexibly modify curve fitting equations, and have computer software copyright certificates.

The software has a spectral scanning function, which can perform qualitative measurements from infrared spectra, display the absorbance curve within the measured spectral range, distinguish interfering substances, and verify whether the purity of the extractant meets the measurement requirements.

The instrument adopts a high-throughput optical system, integrated optical path design, short optical path length, high energy, small instrument size, light weight, first separates and then absorbs, meeting the requirements of infrared spectroscopy characteristics, good stability, and high signal-to-noise ratio.

The use of electrically modulated light sources not only reduces the heat generation intensity of the light source to facilitate system heat dissipation, but also simplifies the instrument structure and improves instrument stability due to the absence of mechanical cutting moving parts.

Adopting imported stepper motor to control the grating, it has wavelength correction function, high wavelength accuracy, and good repeatability.

The colorimetric cell structure design of * * is suitable for any colorimetric dish ranging from 0.5 to 5 centimeters.

Automatically adjust the wavelength positioning of the CH2 group 2930cm-1 of the instrument to achieve accurate measurement without the need for manual wavelength positioning.

● Instrument operation software function *, measurement data and spectra can be saved to the hard drive, compatible with OFFICE software, and can be viewed and printed at any time.

Compatible with extraction solvents: carbon tetrachloride and tetrachloroethylene.

Technical Indicators:

Baseline stability: Real time automatic adjustment of zero point (without baseline drift effect), the computer collects both the signal when the light source emits light and the signal when the light source goes off, achieving real-time automatic adjustment of zero point, simplifying operation and improving long-term signal stability

Calibration method: The instrument can be measured using calibration coefficients or standard curves to meet different needs

Method detection limit: When the sample volume is 1000ml and the extraction solution volume is 25ml, the detection limit is 0.01mg/L

Basic measurement range: 0.0~800mg/L

Measurement value basis: ρ=X · A2930+Y · A2960+Z · (A3030-A2930/F)

Wave number range: 3400cm-1 to 2400cm-1 (i.e. 2941 to 4167nm)

Wavelength scanning range: 3200nm to 3600nm

Wave number accuracy and repeatability: ± 1cm-1

Wavelength resolution and repeatability: 1nm

● Absorption range: 0.0000-2.0000 AU (i.e. transmittance of 100-1% T)

Standard method and measurement time: Infrared spectrophotometry, the instrument has a full wavelength continuous infrared absorption spectrum, full spectrum scanning, 30S/time; Dispersed infrared photometry, 1 second per measurement.

● Environmental temperature: 0-50 ℃

Relative humidity: 20-80%