Views: 1 Author: Site Editor Publish Time: 2025-10-29 Origin: Site
POIL-800 Online Oil-in-Water Analyzer
Zero reagents, UV fluorescence for highly sensitive oil tracking
Real-time online monitoring
Rapid response
Anti-interference optical path design
Reagent-free optical detection
"Oil in water" mainly comes from industrial wastewater, ship leaks, oil exploitation, etc. Among them, polycyclic aromatic hydrocarbons (PAHs) are the core toxic substances constituting oil pollution in water. They are carcinogenic, teratogenic, and mutagenic, and are generally regarded as key factors for evaluating the overall toxicity of oil in water.
By online monitoring PAHs and other substances with fluorescent signals in water,
it can reflect the oil content in water and effectively evaluate the pollution degree of oil pollutants in water bodies.
The new POIL-800 online oil-in-water analyzer
is based on the principle of UV fluorescence method, where oil substances emit fluorescence of specific wavelengths under UV excitation.
By detecting the fluorescence intensity,
it can accurately measure the concentration of oil in water.
No sampling or reagents are needed,
Enabling real-time online monitoring of oil in water,
breaking the dilemma that laboratory sampling cannot achieve continuous monitoring.
Advantages of UV Fluorescence Method
Currently,
there are various methods for detecting oil in water on the market.
Although they have certain advantages in some aspects,
they also have many limitations.
Method | Gravimetric Method | Infrared Spectrophotometry | Ultraviolet Spectrophotometry | Gas Chromatography | Gas Chromatography | Fluorescence Spectrophotometry | UV Fluorescence Spectrophotometry |
Applicability | Not limited by oil types | Not limited by oil types | Poor selectivity (different substances may have different maximum absorption peaks) | Volatile petroleum hydrocarbons (C6-C9) | Volatile mineral oils (C10-C40) | Limited by oil types, low response to non-aromatic hydrocarbons | Easily interfered by turbidity, temperature, chromaticity, etc. |
Detection Limit | ≥3mg/L | 0.01mg/L | 0.05mg/L | 0.01mg/L | 0.01mg/L | 0.001mg/L | / |
Operability | Tedious | Complex, requiring extraction and other steps | Complex, requiring extraction and other steps | Tedious | Tedious | Tedious | Simple |
Extractant | Petroleum ether (toxic) or n-hexane | Tetrachloroethylene (toxic) | n-hexane (low toxicity) | / | Dichloromethane (low toxicity) | Petroleum ether (toxic) or n-hexane | No extraction required |
Measurement Object | Animal and vegetable oils, petroleum hydrocarbons | Animal and vegetable oils, petroleum hydrocarbons | Petroleum hydrocarbons, cannot measure animal and vegetable oils | Petroleum hydrocarbons, cannot measure animal and vegetable oils | Petroleum hydrocarbons, cannot measure animal and vegetable oils | Petroleum hydrocarbons, cannot measure animal and vegetable oils | Petroleum hydrocarbons, cannot measure animal and vegetable oils |
Gravimetric method
has tedious operation and takes a long time.
Infrared spectrophotometry
has high requirements for sample pretreatment.
Gas chromatography
requires complex equipment and professional personnel to operate.
In contrast,
the UV fluorescence method for detecting oil in water has significant advantages:
highly sensitive detection, real-time online monitoring, anti-interference optical path design, easy maintenance and quick response, and reagent-free optical analysis.
Product Advantages
High precision and sensitive detection
With core UV fluorescence technology, it can accurately detect extremely low concentrations of oil substances. Even in water bodies with very low oil content, it can capture every subtle change, identify invisible trace pollution, and meet the needs of ultra-low limit scenarios such as drinking water sources.
Real-time online monitoring
It breaks through the traditional laboratory analysis mode, realizes 24-hour continuous online monitoring, obtains real-time dynamic change data of oil pollutants, eliminates the delay of manual sampling, and ensures data timeliness.
Optical monitoring with rapid response
Adopting advanced optical monitoring methods, no extractant, sample dilution or complex pretreatment is needed. It can be quickly operated without professional personnel, completing real-time monitoring of oil content in water samples in a very short time, significantly improving monitoring speed and emergency treatment efficiency.
Multiple anti-interference designs
Integrating reference optical path (effectively compensating for the impact of temperature and optical path attenuation), UV fluorescence and electronic filtering technology (eliminating the impact of ambient light), and unique optical path design (reducing light energy loss of LED light source and fluorescence), ensuring the instrument operates stably for a long time in complex environments.
Easy operation and maintenance
Integrating functions such as automatic calibration and automatic brush cleaning, it minimizes manual intervention, ensures long-term stable operation of the equipment, and reduces maintenance costs and burdens.
Application Scenarios
Petroleum and chemical industry (circulating water/condensed water/cooling water leakage)
Marine oil pollution (ballast water discharge/fuel leakage)
Oil tank and oil pipeline leakage (early warning monitoring of oil leakage)
Oilfield drilling (reinjection and injection water quality control)
Reclaimed water reuse (RO feed water, steam generator feed water)
Heat exchanger leakage (avoiding boiler water and cooling tower pollution)
Surface water, etc. (ecological environment protection monitoring)
Industrial wastewater discharge (discharge standards)
Technical Parameters
Measurement range: 0-100mg/L (NDSA)
Measurement accuracy: less than ±5% of the measured value or ±0.15mg/L, whichever is larger
Calibration: sample calibration, slope calibration
Main sensor materials: body: SUS316L, titanium alloy; cable: PUR
Communication protocol: MODBUS RS485
Protection class: IP68
Cleaning method: automatic brush cleaning
Cable length: standard 10-meter cable, extendable to 100 meters