Under the condition of pH ≤ 2, petroleum substances in water are extracted into n-hexane. The extract is separated from oil and water, and after removing polar substances such as animal and vegetable oils through a magnesium silicate adsorption column, the absorbance is measured at a wavelength of 225nm. The petroleum content and absorbance values follow Lambert Beer's law.

　　

　　

Suitable for the determination of petroleum in surface water, groundwater, and seawater.

　　

　　

HJ970-2018 Determination of Petroleum in Water Quality by UV spectrophotometry

　　

　　

High precision: The grating is driven by a micrometer level precision screw, ensuring wavelength accuracy<± 0.1nm and a projection accuracy of ± 0.1%.

　　

Good stability: Adopting thickened casting bottom plate, natural aging treatment, designed with unique optical system, low stray light, and low noise.

　　

High accuracy: The instrument uses high-performance 1200/nm gratings and imported receivers to ensure high detection accuracy and good repeatability.

　　

Calibration methods: single point rapid calibration, calibration curve calibration.

　　

Automatic wavelength calibration: automatic wavelength calibration, automatic wavelength setting.

　　

Automatic calculation: The instrument can freely set the volume of water sample and n-hexane, automatically calculate and display the solution concentration and water sample concentration.

　　

Easy and fast operation: The instrument adopts a 128 * 64 bit dot matrix LCD display, which can directly display standard curves and test data. The host can store test data and can be optionally printed with a printer.

　　

F2000-802 UV oil analyzer parameters:

　　

Detection wavelength: 225nm

　　

Reagent: n-hexane

　　

Wave number accuracy: ± 0.1nm

　　

Wave number repeatability: ≤ 0.1nm

　　

Spectral bandwidth: 1.8nm

　　

Stray light: 0.03% T

　　

Detection limit: ≤ 0.005mg/L

　　

Measurement repeatability<2%

　　

Measurement accuracy ± 2%

　　

Linear range of absorbance: 0.0000~1.9999AU

　　

Linear relationship:> zero point nine nine nine

　　

Measurement range: 0.0~50mg/L

　　

Zui low detection concentration 0.001mg/L

　　

Detection limit: 3SD ＜ 0.1mg/L

　　

Baseline flatness ± 0.001nm

　　

Communication interface RS232 USB

　　

Dimensions: 545 * 468 * 245 (nm)

　　

Weight 16kg

　　

Power supply AC110/220V 50/60Hz

　　

Humidity<80%