Infrared spectrophotometer: the "spectral guardian" guarding green mountains and clear waters

In today's accelerated industrialization and urbanization process, oil pollutants have become a significant threat to the ecological environment and human health. From oil spills to industrial wastewater discharge, from catering fumes to soil leakage, precise and efficient monitoring methods are urgently needed for the prevention and control of oil pollution. The infrared spectrophotometer, with its scientific principles and technological innovation, has become the "gold standard" in the field of environmental monitoring, providing strong technical support for safeguarding green mountains and rivers.

Technical principle: Spectral code of molecular vibration

The core technology of infrared spectroscopy oil analyzer is based on infrared spectral analysis. When specific wavelengths of infrared light (such as 2930cm ⁻¹, 2960cm ⁻¹, 3030cm ⁻¹) irradiate the sample, the C-H bonds in oil molecules undergo vibrational absorption, forming characteristic spectra. By measuring absorbance and combining it with Lambert Beer's law, the instrument can accurately calculate oil content. This technology can not only distinguish between petroleum and animal and vegetable oils, but also identify different hydrocarbon structures, providing key data for pollution tracing.

Taking the national standard HJ637-2018 as an example, the instrument extracts oil substances from water samples using tetrachloroethylene, removes animal and vegetable oils through magnesium silicate adsorption, and quantitatively analyzes petroleum products. The entire process is ensured to be scientific and compliant through a three wave number synchronous detection algorithm.

Technical advantage: solving traditional detection problems

1. High precision and sensitivity are achieved by using an electrically modulated light source and a 24 bit AD conversion chip. The detection limit is as low as 0.001mg/L, with a repeatability error of ≤ 0.6%, and can detect trace pollutants.

2. Fully automated processes from extraction, purification to data analysis, with instrument support for one click operation, reducing human intervention. Some models even implement unmanned aerial vehicle (UAV) deployment to complete grid based monitoring of marine pollution.

3. Multi scenario applicability compatible with various samples such as water quality, soil, and exhaust gas, covering detection scenarios such as surface water, industrial wastewater, and catering fumes, meeting the diverse needs of industries such as environmental protection, petrochemicals, and agriculture.

4. Intelligent data management with built-in cloud platform supports wireless data upload and long-term storage, combined with blockchain technology to ensure data immutability and provide reliable evidence for environmental law enforcement.

Application areas: From rivers, lakes and seas to production lines

1.Environmental monitoring

• Water quality protection: Real time monitoring of oil pollution in rivers and lakes, such as quickly identifying pollution sources in the Bohai Bay oil pollution incident.

• Soil remediation: detect soil leakage around oil fields and guide precise remediation.

2.Industrial prevention and control

• Petrochemical industry: Monitor wastewater discharge to ensure compliance with the "Water Pollutant Discharge Standards for Petroleum Refining Industry".

• Metal processing: detecting residual oil stains on the surface of metal products to improve coating quality.

3.Analyze the degree of edible oil spoilage and adulteration in food safety, and ensure that the fat content of dairy products and baked goods meets the standard.

4.In emergency response to oil tanker leaks or chemical plant accidents, quickly delineate the pollution area and guide the deployment of oil disinfectants, such as the 72 hour emergency monitoring in the Yellow Sea oil spill incident

Industry pain points and innovative solutions

Traditional oil detection methods face many challenges:

• The pre-processing is cumbersome: the extraction and purification steps are time-consuming and prone to introducing errors. Solution: The fully automatic extraction system realizes "sample in data out" and the automatic detection function of extraction agent purity avoids reagent risks.

• Low data reliability: Matrix interference leads to biased results. Solution: Three wave number synchronization analysis algorithm eliminates interference, and real-time automatic zeroing technology improves stability.

• Lack of portability: difficult to monitor in remote areas. Solution: Portable models paired with AC/DC power supply, supporting field testing.

Infrared spectrophotometer is not only the "eye" of environmental monitoring, but also the "guardian" of ecological civilization construction. From laboratories to fields, from rivers, lakes, and oceans to the forefront of industry, it provides technological support for winning the battle against pollution prevention and control with accurate data and efficient response. In the future, with the continuous innovation of technology, this "spectral guardian" will surely write a more brilliant chapter in the journey of guarding green mountains and rivers.

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