Infrared spectrophotometer EP900

NegotiableUpdate on 03/24

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Nature of the Manufacturer: Producers

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Overview

Infrared spectrophotometer EP900

Product Details

1. Compliant with standards
Complies with the national standard "HJ637-2018 Determination of Water Quality, Petroleum and Animal and Vegetable Oils - Infrared Luminescence Method"
2. Technical principles
According to HJ637-2018 standard, oil substances in water are extracted with tetrachloroethylene, the total extract is determined, and then the extract is adsorbed with magnesium silicate. After removing animal and vegetable oils and other substances, petroleum substances are determined. The total extract and petroleum content were calculated based on the absorbance A2930, A2960, and A3030 at spectral bands with wave numbers of 2930 cm-1 (stretching vibration of C-H bond in CH2 group), 2960 cm-1 (stretching vibration of C-H bond in CH3 group), and 3030 cm-1 (stretching vibration of C-H bond in aromatic hydrocarbon), respectively. The content of animal and vegetable oils is calculated based on the difference between the total extract and petroleum content.
3. Department using the instrument
environmental monitoring systemPetrochemical industry, hydrology and water conservancyWater companySewage treatment plants, thermal power plants, steel enterprises, scientific research and teaching in universitiesAgricultural environment monitoringRailway environmental monitoring, automobile manufacturingmarine environmental monitoringFor use in testing rooms and laboratories such as traffic environment monitoring and environmental research.
4. Application scope of the instrument
This instrument is mainly used for measuring oil content in surface water, groundwater, and industrial wastewater. It can also be used for monitoring oil content in flue gas and solids in the catering industry. This instrument is used to measure the oil content in water, gases, and solids.
5. Technical indicators
project technical indicators
The detection limit of the instrument is 3SD ≤ 0.02mg/L (measure 11 times blank and calculate 3 times standard deviation)
Method detection limit (water sample) 0.002mg/L
Water sample measurement range 0.0-100% oil (dilution or enrichment extraction measurement method)
Repeatability RSD ≤ 0.5% (tested 11 times for 20-100mg/L oil standard sample)
Measure the absorbance of 2930cm-1 tetrachloroethylene: ＜ 0.2 (A)
Aromatic hydrocarbon detection limit 2mg/L (benzene national standard substance)
Accuracy error<1%
Correlation coefficient R>0.9999
Scanning speed: Full spectrum scanning, 30 seconds/time
Wave number range 3400cm-1 to 2400cm-1 (i.e. 2941nm to 4167nm)
The absorbance range is 0.0000-2.0000 AU (i.e. transmittance of 100-1% T)
Resolution 0.001mg/L
Wave number accuracy and repeatability ± 0.5cm-1
Temperature and humidity range: 1 ℃ -40 ℃, humidity ≤ 90%
The external dimensions of the host are 45cm × 34cm × 30cm (length, width, height)
Use power supply (220 ± 22) V, (50 ± 1) Hz, 50VA