UV oil analyzer

InLab-2500UV oil analyzer

OneIntroduction

InLab-2500 modelUV oil analyzerIt's my companyA high-efficiency, environmentally friendly, accurate, and fast oil measuring instrument has been developed based on the requirements of national environmental monitoring technical specifications, combined with the environmental pollution situation in China and the needs of environmental monitoring departments at all levelsReplacing the banned carbon tetrachloride extractant in infrared spectroscopy with n-hexane extractant,comply withNew national standard《HJ 970-2018 Determination of Petroleum in Water Quality by UV SpectroscopyAccording to the requirements of the photometry method, this product is easy to operate, has good precision, high sensitivity, and stable performance, and can meet various application needs of users.

Background: In order to implement the Environmental Protection Law of the People's Republic of China and realize China's Montreal Protocol on Substances that Deplete the Ozone LayerThe commitment to cease the use of carbon tetrachloride (CTC) for laboratory purposes in 2019, to protect the ecological environment, safeguard human health, and meet the monitoring requirements for petroleum products in current environmental quality standards and pollutant emission standards, as stated by the Ministry of Ecology and Environment2018year10moon10Approval of two water quality standards on a daily basis Petroleum standards are national environmental protection standards, among which 'Water Quality' Determination of petroleum products UV spectrophotometry (trial)（HJ 970 - 2018 ）Suitable for the determination of petroleum in surface water, groundwater, and seawater. The extractant is n-hexane. 】

IIScope of Application

Detection of petroleum and animal and plant oils in surface water, groundwater, seawater, and industrial wastewater.

IIIDetection Principle

inUnder the condition of pH ≤ 2, extract oil substances from the sample with n-hexane, dehydrate them with anhydrous sulfur, and then use magnesium silicate to adsorb and remove polar substances such as animal and vegetable oils. Measure the absorbance at a wavelength of 225nm, and the content of petroleum is proportional to the absorbance value; Animal and plant oils are complex mixtures with no fixed absorption characteristics. To meet the needs of users, our company tests various oils (including polar substances with similar characteristics), analyzes and summarizes these substances, selects characteristics that can represent the content of most animal and plant oils, and makes their concentration proportional to absorbance.

4Terminology and definitions

1. Petroleum: Refers to theUnder the condition of pH ≤ 2, it can be extracted by n-hexane, not adsorbed by magnesium silicate, and has characteristic absorption at 225nm;

2. Animal and vegetable oils: Refers to oils that are present inPolar substances such as animal and vegetable oils that can be extracted by n-hexane and adsorbed by magnesium silicate under pH ≤ 2 conditions;

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

FiveFeatures

1. Using UV spectrophotometry to measure oil concentration is convenient and fast;

2. The instrument can measure independently without the need for a computer;

3. Can directly measure petroleum, animal and vegetable oils, and total oil;

4. The measurement indicators can be selected separately as either 'petroleum' or 'petroleum'+Animal and vegetable oils+total oil;

5. Adopting n-hexane extraction method, replacing the extraction agents of carbon tetrachloride and tetrachloroethylene in infrared method with n-hexane, which is environmentally friendly and safe;

6. Petroleum indicators meet national standards《HJ 970-2018 Determination of Petroleum in Water Quality by UV spectrophotometry;

7. Fast measurement speed, capable of measuring multiple samples simultaneously;

8. Equipped with calibration function,Automatically calculate slope, intercept, and correlation coefficient, with high measurement accuracy；

9. Equipped with automatic prompt function, each step will prompt the user how to operate, and users do not need to have complex professional knowledge;

10. Large screen LCD backlit display, pure Chinese operation interface, user-friendly program design;

11. Large capacity data storage, power-off protection design ensures that the instrument is not damaged and data records are not lost;

12. Intelligent design for fault self diagnosis, making instrument management and maintenance simple and convenient;

13. Can be widely applied toPetroleum and animal/plant oils in surface water, groundwater, seawater, and industrial wastewater；

14. The adopted light source design has strong anti-interference ability, long light source life, and low maintenance costs;

15. Comes with free data collection and analysis software, which can be connected to a computer to export the measurement data of the instrument;

16. The instrument comes with a printer that can print real-time and historical data of measurements on site;

17. Wide measurement range, low reagent usage, low operating cost, and strong anti-interference ability;

18. Equipped with delayed start function and automatic preheating function,Equipped with automatic shutdown function, effectively extending the service life of the instrument;

VIperformance parameters

1. Measurement indicators: petroleum, animal and vegetable oils, and total oil;

2. Measurement method:UV spectrophotometry

3. Detection limit: The detection limit for petroleum determination is0.01mg/L， The detection limit for animal and plant oils is0.5mg/L，

4. Measurement range: 0.01~100mg/L；

5. Repeatability:≤ 1% (20mg/L concentration of petroleum standard solution);

6. Linear:R＞0.999

7. Measurement error:≤10%；

8. Extraction method: manual extraction or automatic extraction (optional);

9. Extraction agent: n-hexane;

10. Colorimetric dish:20mm石英比色皿；

11. time Clock: Built in real-time clock, with a monthly cumulative error of less than 10 seconds;

12. Record storage: storable10000 measurement results, data is not lost when power is cut off;

13. hit Printing: The instrument comes with a built-in printer that can print measurement results at any time;

14. Communication method:RS232、USBThe measurement results can be uploaded to a computer for easy statistical analysis by users;

15. apparent Display: 240 * 128 large blue backlit display with Chinese operation interface;

16. Environmental temperature:（5 ~ 40）℃； Environmental humidity: relative humidity<85% (no condensation);

17. Overall dimensions:395*298*120mm；

18. Working power supply:AC220V±15% / 50Hz， Whole machine power consumption: 28W；

19. Whole machine weight:4.5KG；

7Reagents used

1. hydrochloric acidρ（HCl）=1.19g/L

2. Sulfur Suanρ（H₂SO₄）=1.84mg/L

3. n-hexane

4. absolute ethanol

5. Anhydrous sulfur SUANNA

6. Magnesium silicate (factory standard)

7. Glass wool (factory standard)

8Instruments and equipment

Factory standard configuration:

1. UV oil analyzer

2. Colorimetric dish:2cm石英比色皿 * 4；

3. Data collection and analysis software;

4. Various types of power and communication cables;

User provided category:

5. Automatic extraction device (optional, can be manually extracted)

6. Separation funnel:1000ml， PTFE plug valve

7. Sampling bottle:500ml brown hard glass bottle

8. Cone shaped bottle:50ml ground mouth with lid

9. Column chromatography: inner diameter10mm, Effective height 200mm

10. Horizontal oscillator (not mandatory)

11. Centrifuge: equipped with glass centrifuge tubes (not mandatory)

12. Common laboratory utensils and equipment

NineQuality assurance and after-sales service

One year warranty, providing long-term factory parts and maintenance and repair after-sales service;