Uv oil meter

【 Product Introduction 】  

Ultraviolet spectrophotometer is a special ultraviolet spectrophotometer used to measure oil in water. The instrument is an efficient, environmentally friendly, accurate and fast oil measuring instrument developed according to the requirements of the national environmental monitoring technical specifications. The product has simple operation, good precision, high sensitivity and stable performance, and can meet the application requirements of customers.  

The instrument should be widely applied to environmental monitoring stations at all levels of the environmental Protection Bureau, water conservancy and hydrological monitoring stations, Marine environmental monitoring, water supply companies, agriculture, animal husbandry and fishery water quality testing, third-party environmental testing companies and many other fields.  

It is suitable for the determination of oil in surface water, groundwater and seawater.  Water samples were extracted with n-hexane at PH≤2 to determine oil.  The extraction liquid was dehydrated with anhydrous sodium sulfate and then adsorbed by magnesium silicate to remove polar substances such as animal and plant oils. The absorbance was determined at 225nm wavelength. The oil content and absorbance values were in accordance with Lambert-Beer law.  

【 Product Features 】  

1. 7-inch LCD screen, easy to operate, with printing function, no need to upload PC side operation;  

2. Using ultraviolet light for detection, the instrument automatically measures the absorbance, sets the measurement parameters according to the current national standard, and can directly read the measurement results of oil in water without manual conversion;  

3. Adopt advanced and reasonable optical path system design, high-quality optical components and low noise circuit design, optical path debugging structure, optical system for double beam proportional monitoring, the instrument has the power on self-test function, can correct the instrument system and possible fault judgment;  

4. With n-hexane transmittance detection function: using water as a reference, using 2cm quartz colorimetric dish to determine n-hexane at 225nm, the analysis software automatically gives the purity of n-hexane reagent qualified or unqualified judgment;  

5. In addition to being used as a special ultraviolet oil detector, the software is easier to operate, more flexible, and has a strong range of application;  

【 Technical parameters 】  

1. According to the standard: National environmental protection standard "HJ970-2018 Water quality oil determination Ultraviolet spectrophotometry (trial)";  

2. Detection limit of the method: When the volume of the water sample is 500ml and the volume of the extracted liquid is 25ml, the detection limit is 0.01mg/L using a 2cm quartz comparator;  

3. Extraction reagent: n-hexane;  

4. Wavelength range: 190 ~ 1100nm;  

5. Wavelength accuracy: ±1nm;  

6. Wavelength repeatability: ≤0.2nm;  

7. Spectral bandwidth: 2nm;  

8. Stray light: 0.05%T;  

9. Absorbance range: -0.3 ~ 3A;  

10. Instrument measuring range: 0 ~ 60mg/L;  

11. Accuracy of standard material: ≤2%;  

12. Correlation coefficient of standard curve: R>0.9998;  

13. Correction mode: standard curve correction;  

14. Repeatability RSD: ≤1% (4 ~ 16mg/L concentration of petroleum standard liquid);  

15. The whole machine adopts mold production, all parts are made of anti-corrosion materials, anti-electromagnetic radiation treatment, corrosion resistance;