Infrared spectrophotometer oil analyzer

Infrared spectrophotometer oil analyzerfollowHJ637-2018Standard, using tetrachloroethylene to extract oil substances from water. Its detection process is similar“Step by step filtering”Firstly, determine the total extract, then use magnesium silicate to adsorb and separate polar substances such as animal and vegetable oils, and finally determine petroleum products.

In principle, petroleum substances are2930cm ⁻¹（CH₂groupC-HKey stretching vibration)2960cm ⁻¹（CH₃groupC-HKey stretching vibration) and3030cm ⁻¹(Aromatic hydrocarbons)C-HThe spectrum of key stretching vibration exhibits characteristic absorption. The instrument detects the absorbance of these characteristic wavenumbers and combines it with a specific algorithm（ρ＝X·A2930+Y·A2960+Z·(A3030-A2930/F)）Calculate the content of petroleum and animal and plant oils to achieve quantitative detection of oil substances.

1、 Working principle: scientific testing based on standards

Infrared spectrophotometer oil analyzerfollowHJ637-2018Standard, using tetrachloroethylene to extract oil substances from water. Its detection process is similar“Step by step filtering”Firstly, determine the total extract, then use magnesium silicate to adsorb and separate polar substances such as animal and vegetable oils, and finally determine petroleum products.

In principle, petroleum substances are2930cm ⁻¹（CH₂groupC-HKey stretching vibration)2960cm ⁻¹（CH₃groupC-HKey stretching vibration) and3030cm ⁻¹(Aromatic hydrocarbons)C-HThe spectrum of key stretching vibration exhibits characteristic absorption. The instrument detects the absorbance of these characteristic wavenumbers and combines it with a specific algorithm（ρ＝X·A2930+Y·A2960+Z·(A3030-A2930/F)）Calculate the content of petroleum and animal and plant oils to achieve quantitative detection of oil substances.

2、 Technical parameters: Performance that meets testing requirements

1. Baseline stability: Equipped with zero point real-time automatic adjustment function, reducing the impact of baseline drift and maintaining detection stability.

2. Correction coefficient accuracy: When operated according to standards, the relative error between the measured values of petroleum standard solutions and the standard values is within±10%Within, compliantcorrectionRequirements for coefficient testing.

3. Detection limit performance: water sample500mlExtraction solution50mlAt the time, the detection limit of the method0.03mg/LInstrument detection limitDL≤0.03mg/L(Based on11Secondary blank solution3timesSD）Meet the low concentration detection requirements.

4. Error and repeatability: accuracy error≤1%；20～80mg/LOil standard sample11Secondary determinationRSD≤0.3%，0.5mg/Lwater sampleRSD≤3%The consistency of the results is good.

5. Measurement range: Basic range0.0～800mg/LWater sample detection0.003mg/L, highest measurable100%Oil concentration, covering multiple scenarios.

6. Other characteristics: absorbance range0.0000～2.0000AU, minimum scale0.0001AWavenumber3400～2400cm ⁻¹Accuracy and repeatability±0.5cm ⁻¹Linear correlation coefficientR＞0.9995Full spectrum scanning30second/Sample, host size450×310×160mm, heavy12Kg，-5～45℃Humidity20～80%Stable operation and adaptability220±10%VThe50HzThe50WPower Supply.

3、 Technical features: Design that fits the detection scene

1. Adopting high-throughput optical system and integrated optical path, with short optical path length and high energy, first splitting and then absorbing, in line with the characteristics of infrared spectroscopy, good stability, and suitable cost-effectiveness.

2. Electric modulation light source reduces heat generation, facilitates heat dissipation, eliminates mechanical cutting components, simplifies structure, and improves stability.

3. Precision stepper motor control grating with wavelength correction, high wavelength accuracy and good repeatability.

4. The sensor uses a lock-in amplifier circuit to improve signal-to-noise ratio and detection limit.

5. The spectral scanning function can display the absorbance curve, making it easy to distinguish interfering substances.

6. Can verify whether the purity of the extractant meets the measurement requirements.

7. Compatibility with colorimetric pools0.5to5Centimeter colorimetric dish with strong adaptability.

8. The high integration of optical and electrical systems enhances reliability and maintainability.

9. Easy to operate, just click the mouse to complete the measurement.

10. auto-adjustCH₂group2930cm ⁻¹Wavelength positioning ensures accurate measurement.

11. The operating software can store massive amounts of data and spectra, and is compatibleOFFICEFor easy reference and printing.

12. Industrial serial port technical supportWIN7、8、10、11System control.

13. Compliant with national inspection standards, the inspection results meet the testing requirements.

4、 Adapting to industry needs: solving practical problems in testing

1. Improve efficiency: Optimize processes to shorten single sample testing time, adapt to batch samples, and provide faster results for both daily and emergency testing.

2. Reduce interference: By using optical systems and algorithms to reduce the influence of impurities and improve data reliability, it is suitable for detecting complex water and soil samples.

3. Optimization management: The built-in data processing system automatically records and stores data, supports export analysis, and some scenarios can be connected to the internet and transmitted to the cloud for easy sharing and remote viewing.

5、 Applicable fields: covering multiple types of detection scenarios

1. Wastewater treatment: Assist in monitoring the oil content of incoming and outgoing water, assist in adjusting processes, and ensure compliance with discharge standards.

2. Petrochemical industry: detect oil substances in production wastewater and exhaust gas, promptly identify potential problems, and reduce environmental impact risks.

3. Research support: Provide data reference for the migration and transformation of oil pollutants in soil and water bodies, and support pollution remediation research.