OIL 510C Fully Automatic Infrared Spectrometer for Oil Analysis

1. Compliant with national standards

National Environmental Protection Standard of the People's Republic of China "HJ637-2018" Determination of Water Quality - Infrared Spectrometric Method for Petroleum and Animal and Vegetable Oils;

National Metrological Verification Regulations JJG 950-2012 Water Oil Concentration Analyzer;

2. Technical principles

Based on "HJ637-2018 Water Quality - Determination of Petroleum and Animal and Vegetable Oils - Infrared Spectrometric Method". Under the condition that the pH of the water sample is ≤ 2, tetrachloroethylene is used as the extraction agent, and the extraction solvent is used to extract the oil substances in the water body in a certain proportion by air flow disturbance. Then, the extraction solvent is dehydrated and introduced into the analysis tank to determine the oil content; After removing polar substances such as animal and vegetable oils by adsorbing the extract with magnesium silicate, determine the petroleum content. The content of oil and petroleum is calculated based on the absorbance A2930, A2960, and A3030 at wavenumbers 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 ring), respectively, using correction coefficients; The content of animal and vegetable oils is the difference between the content of oil and petroleum.

3. System composition:

Liquid storage unit: used to store the test sample and extraction solvent, can simultaneously store 10 test samples, and the volume of each test sample can range from 10ml to 1000ml.

Preprocessor unit: using airflow disturbance extraction technology, with high extraction efficiency, it completes the extraction and separation of the test sample and extraction solution, and sends the processed sample to the colorimetric cell for analysis by the analysis unit. After analysis is completed, the unit discharges the sample clean and automatically cleans the pipeline of the unit.

Infrared spectroscopy automatic analysis unit: This unit detects samples processed by the pre-processing unit, displays the detection results on the screen, saves the detection results in the computer, and can print according to the format specified by the user.

Fully enclosed waste liquid treatment unit: The tested water sample and solvent are automatically emptied into different waste liquid tanks through airflow, and there is no residual liquid in the pipeline, which does not affect the testing of the next sample; Reduce the amount of waste liquid processed, ensuring safety and reliability; Reduce secondary environmental pollution.

4. Application Fields

Used for the determination of petroleum and animal and plant oils in industrial wastewater and domestic sewage.

5. Instrument features

1) Analysis method: in accordance with the current national standard analysis method (HJ637-2018);

2) High degree of automation: sample processing, system cleaning, analysis and determination are automated, saving manpower and time;

3) Good safety: The extraction agent is fully enclosed in all stages of liquid storage, sample extraction, testing, and waste disposal, reducing the opportunity for operators to come into contact with harmful reagents and making it safer;

4) Easy to maintain equipment: The patented oil-water separation membrane replaces anhydrous sodium sulfate in absorbing trace amounts of water, eliminating the need for frequent replacement of anhydrous sodium sulfate and making it more convenient to use;

5) High extraction efficiency: using airflow disturbance extraction technology, the gas volume can be adjusted according to the actual situation of the water sample, and the extraction efficiency is greater than 98%;

6) Equipped with dedicated analysis software: integrating spectrum analysis, scanning, analysis, and calculation for easy calibration of wavelength positions, with computer software copyright certificate;

7) Software system: Adopting dual system analysis to meet the usage requirements of using carbon tetrachloride or tetrachloroethylene as extractants respectively (with a tetrachloroethylene test verification report issued by a national environmental protection system);

8) Calibration method: The instrument has two calibration methods: standard curve calibration and coefficient calibration. Multiple calibration methods meet the needs of different usage environments;

9) Good stability: Real time automatic adjustment of the zero point of the analysis unit (eliminating the influence of baseline drift). Computers collect signals when light sources emit light and when light sources turn off, achieving real-time automatic zero point adjustment, simplifying operations, and improving long-term signal stability;

10) Light source system: The service life of the light source can reach over 5000 hours. The light source uses electrically modulated light source technology to prevent excessive internal temperature of the instrument from affecting stability;

11) Three measurement indicators: capable of measuring both the content of oil and the content of petroleum, animal and plant oils;

12) Automatic dilution and enrichment: dilution and enrichment ratios can be set arbitrarily;

13) The entire pre-treatment system is made of fully corrosion-resistant and non oil friendly materials, and adopts a self-cleaning cleaning process to minimize the cross impact of high and low concentration water samples;

14) The magnesium silicate adsorption column can be automatically replaced without manual labor, with one sample replaced once or multiple samples replaced once (optional). (Using airflow method to allow the solvent to fully vibrate and come into contact with magnesium silicate);

15) The front end of the instrument adopts a molecular sieve structure to prevent impurities from blocking the pipeline;

16) The sample cup is made of transparent, oil-free, and non fragile material with scales, which can accurately measure and collect water samples directly without the need to transfer water samples. It can be tested directly on the machine;

17) Automatic wavelength correction: The wavelength can be adjusted freely within a specified range. Qualitative and quantitative analysis of all substances with characteristic absorption within the scope;

18) There are many types of applicable reagents: tetrachloroethylene, carbon tetrachloride, S-316, etc. are all suitable for this instrument;

19) Automatic configuration of standard curve: It can configure various concentration points of the curve and automatically generate standard curves;

19) Reagent remaining amount monitoring: Real time monitoring of reagent remaining amount, providing warning function for insufficient reagent amount;

20) The tested water sample and solvent are automatically discharged into the waste liquid tank by blowing air, and there is no residue in the pipeline, which does not affect the testing of the next sample;

21) Automatic dilution function: It can identify unknown high concentration samples and automatically dilute them according to the set over concentration threshold;

22) Mobile APP function: Through big data cloud, it is possible to control the operation status, fault warning, data approval query, and remote diagnosis of instruments on the mobile phone;

6. Technical indicators and related parameters

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

2) Absorption range: 0.0000-2.0000 AU, with a transmittance of (100-1)% T

3) Wave number repeatability: ± 0.5cm-1

4) Wave number accuracy: ± 0.5cm-1

5 Measurement range: 0-64000mg/L, with automatic dilution in excess range

6) Method detection limit: 0.06mg/L

Instrument detection limit: DL<0.04mg/L (3 times SD of 11 measurements of tetrachloroethylene blank solution)

7) Accuracy error: ≤ 1%

8) Linear correlation coefficient: r>0.999

9) Repeatability: RSD ≤ 0.6% (30-50mg/L water sample)

10) Analysis time: The shortest measurement time for a single sample is 7.5 minutes (including pre-processing time), and 10 samples can be continuously measured

11) Sampling volume: 0~1000ml Injection cup (water sample cup with scale)

12) Extraction ratio: any ratio

13) Host size: 450mm (length) x 400mm (width) x 130mm (height)

14) Host weight: 12Kg

15) Extraction unit size: 750mm (length) x 535mm (width) x 690mm (height)

16) Extraction unit weight: 20Kg

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

18) Temperature: -5-45 ℃

19) Relative humidity: 20% -95%