Portable Infrared Spectroscopy Oil Detector

KN-EP910 Portable Infrared Spectroscopy Oil Detector 

Overview 

  KN-EP910 Portable Infrared Spectroscopy Oil Detector will extract oil substances in water with tetrachloroethylene, determine the total extract, then adsorb the extract with magnesium silicate, and determine oil after removing polar substances such as animal and vegetable oils. The contents of total extracts and petroleum are calculated by absorbance a2930, a2960 and a3030 at bands with wave numbers of 2930cm^-1 (stretching vibration of C-H bond in CH2 group), 2960cm^-1 (stretching vibration of C-H bond in CH3 group) and 3030cm^-1 (stretching vibration of C-H bond in aromatic hydrocarbon) respectively. The content of animal and vegetable oil is calculated according to the difference between the total extract and petroleum content 

User Departments 

  Used in testing rooms and laboratories of environmental monitoring systems, petrochemical industries, hydrology and water conservancy departments, water supply companies, sewage treatment plants, thermal power plants, steel enterprises, university scientific research and teaching institutions, agricultural environmental monitoring, railway environmental monitoring, automobile manufacturing, marine environmental monitoring, traffic environmental monitoring, and environmental scientific research. 

Application scope of the instrument 

  The instrument is mainly used in the measurement of oil content in surface water, groundwater, industrial wastewater, and also can be used for the monitoring of oil in the flue gas of the catering industry and the monitoring of oil content in solids. This instrument is a professional instrument for measuring the oil content in water, gas and solid. 

Technical indicators 

1. Detection limit: DL ≤ 0.05 mg/L (calculated as 3 times the standard deviation from 11 blank measurements)

2. Repeatability: RSD ≤ 1% (measured 11 times with 20-100 mg/L oil standard)

3. Measurement accuracy: Error ≤ ±1%

4. Basic measurement range: 0.0-100% pure oil (with dilution and enrichment)

5. Scanning speed: 30 seconds for full-spectrum scanning per sample

6. Correlation coefficient: R > 0.9995

7. Absorbance range: 0.0000–2.0000 AU (transmittance 100–1% T)

8. Wavenumber range: 3400 cm⁻¹–2400 cm⁻¹ (2941 nm–4167 nm)

9. Wavenumber accuracy and repeatability: ±1 cm⁻¹

10. Control device: Laptop, tablet, or mobile phone

11. Control system: Windows 10 operating system

12. Net weight of main unit: 13 kg

13. Power supply: (220±22) V, (50±1) Hz, 50 VA

14. Operating temperature and humidity: 1℃–40℃, humidity ≤90%

15. Dimensions of main unit: 47 cm (L) × 42 cm (W) × 22 cm (H)

Technical characteristics 

1. Standard pre-treatment extractor with built-in rechargeable power supply, extraction bottle, Erlenmeyer flask, etc., enabling operations such as water sample collection, measurement, extraction, filtration, and testing.

2. Clear infrared three-wavenumber three-peak oil absorption scanning spectra, with independent absorption peak spectra for each water sample, enabling traceability and data accuracy judgment.

3. Capable of detecting total oil, petroleum, and animal-vegetable oil in water samples, as well as oil in catering industry fume gas and solids.

4. Equipped with the manufacturer's patented standard oil filter, enabling permanent single-point/multi-point calibration, eliminating the need to replace standard curves and avoid toxic reagents when preparing standard oil.

5. The instrument can perform oil concentration measurement using both non-dispersive and infrared spectrophotometric methods, and can be used as a near-infrared spectrometer. It complies with ASTM D7066–04 standard, using tetrachloroethylene, 113, S-316, perchloroethylene, AK-225 as extraction solvents. Extracted oils show characteristic absorption in the near-infrared region at 2930 nm or 3500 nm (3.4 µm or 3.5 µm).

6. Automatically detects and adjusts the instrument's characteristic wavelength for precise measurement.

7. Electrically modulated light source replaces mechanical light source switching, improving instrument reliability.

8. Pyroelectric photodetector collects dual signals when the light source is on/off, enabling automatic baseline adjustment of infrared light with stable performance.

9. High correlation coefficient: R > 0.9995 for 0.5–5 mg/L measurements.

10.  Built-in 11-inch touch computer with functions for automatic statistical analysis, spectrum display, storage, and printing.

11. AC/DC dual-use: Can directly use 220V AC or connect to 12V DC power box or vehicle power.

12. Uses tetrachloroethylene organic solvent as extractant, with technical support provided