The OIL 5800 UV oil analyzer produced by Tianjin Energy Spectrum Technology is developed and produced according to the latest environmental protection standard of the People's Republic of China, "HJ970-2018 Determination of Water Quality and Petroleum by UV spectrophotometry". Adopting an excellent optical system and equipped with high-performance imported holographic gratings, the instrument has a high light flux and extremely low stray light. Multiple resolutions and scanning speeds are available for selection, allowing the instrument to handle different testing needs with ease. The high-precision data acquisition and processing system enables the instrument to have extremely high measurement accuracy and stability.

Application areas of OIL 5800 UV oil analyzer

Determination of oil: Petroleum: refers to substances that can be extracted by n-hexane without being adsorbed by magnesium silicate under pH ≤ 2 conditions, and have characteristic absorption at 225nm;

Animal oil: The main component is glycerides containing saturated fatty acids;

Vegetable oil: The main component is glycerides containing unsaturated fatty acids;

Animal and vegetable oils: Refers to some oils that can be extracted by n-hexane and adsorbed by magnesium silicate under pH ≤ 2 conditions;

Total oil: the sum of petroleum, animal and vegetable oils.

Testing principle of OIL 5800 UV oil analyzer

According to HJ970-2018 standard, under the condition of pH ≤ 2, the oil substances in the sample are extracted by n-hexane. The extraction solution is dehydrated by anhydrous sodium sulfate, and then adsorbed by magnesium silicate to remove polar substances such as animal and vegetable oils. The absorbance is measured at a wavelength of 225 nm, and the petroleum content and absorbance value comply with Lambert Beer's law.

Instrument features of OIL 5800 UV oil analyzer:

1. Use n-hexane to extract the sample, replacing infrared method carbon tetrachloride and extractant, to meet the new national standard for petroleum.

Under the condition of pH ≤ 2, the oil substances in the sample are extracted by n-hexane. The extract is dehydrated by anhydrous sodium sulfate and then adsorbed by magnesium silicate to remove polar substances such as animal and plant oils. The absorbance is measured at a wavelength of 225 nm, and the petroleum content and absorbance value comply with Lambert Beer's law.

3. The machine adopts the Chenier Turner device, combined with high-performance imported holographic gratings, to achieve a high light flux and low stray light splitting system.

4. With a resolution of up to 0.5nm, it meets the requirements of high-precision and fast testing.

5. Superior self diagnostic function, easy to observe instrument status.

The use of a 6.24-bit high-precision and high-speed conversion system can quickly obtain high-precision data.

7. The unique light source pre positioning system makes the replacement of the light source exceptionally simple, and can be completed in 2 minutes.

8. The expandable intelligent attachment interface provides the possibility for customizing attachments. Provided a platform for secondary development for researchers.

9. A powerful software system that can achieve multiple functions such as wavelength scanning, dynamic testing, multi wavelength scanning, wavelength quantification, and scan quantification, while also possessing powerful data processing capabilities.

10. The software system has various functions that comply with GLP standards.

11. Provide an automatic oil analysis software system to automatically calculate the content of petroleum.

The optical system adopts a monochromator with a C-T structure, which is reasonably arranged and optimized through the relative positions of corresponding optical devices, greatly eliminating the influence of system aberrations. This not only effectively improves the energy transmission efficiency of the system, but also maximizes the suppression of stray light caused by the optical system

When the absorbance (A0) is 1.000, if all stray light is 0.02%, the relative error of absorbance caused by stray light (△ A/A0) is 0.09%; If the stray light of the instrument is 0.5% and the relative error of absorbance caused by stray light is as high as 2.0%, it can be seen that the stray light of the instrument has a great impact on the measurement

Grating with ultra-low stray light

At a bandwidth of 1nm, the peak to peak ratio of the OIL 5800 UV oil analyzer is 1.9;

At a bandwidth of 0.5nm, the peak to peak ratio of the OIL 5800 UV oil analyzer is 2.1;

Under the spectral bandwidth conditions of 0.5nm and 1nm, the resolution is better than the requirements of EP.