1、 Instrument Introduction:

Testing indicators:Petroleum (oil content in water)

Instrument name:UV spectrophotometryOil content analyzerUV Oil-in-Water Analyzer(Equipped with an automatic petroleum extractor)

type number:Dejun InstrumentOIW-970

Detection principle:ultraviolet spectrophotometry

come together take Agent:hexane

Applicable standard substances:Standard substances for petroleum composition analysis in marine environmental monitoring（HJOil standard, national standard10000759），GBW(E)080913，1000mg/L；

Execution standards:New National Standard for Petroleum《HJ 970-2018water quality Determination of petroleum products Ultraviolet spectrophotometry

make make Business:Guangzhou Dejun Instrument Co., Ltd

Instrument Introduction:

Dejun Instrument OIW-970 UV spectrophotometric oil analyzer, is a new national standard specifically designed for petroleum products《HJ 970-2018water quality Determination of petroleum products A high-precision and highly reliable laboratory water oil analyzer developed by UV spectrophotometry, using n-hexane as the extraction agent and equipped with an automatic liquid-liquid extraction system. It is used for the determination of petroleum in surface water, groundwater, and seawater, with a range of0.008~100mg/LThe detection limit is0.008mg/L.OIW-970No need for manual oscillation extraction, one click measurement, direct reading of concentration, convenient, fast, stable and reliableWidely used in environmental protection and monitoring, marine and maritime affairs, hydrology and water conservancy, as well as third-party testing institutions, enterprises and other testing units.

Detection principle:

OIW-970UV spectrophotometer for oil analysispH≤2Under certain conditions, extract oil substances from the sample with n-hexane, filter and dehydrate them through a funnel with anhydrous sodium sulfate sand core, and then use a magnesium silicate column to adsorb and remove animal and plant oilsOIW-970a surname225nmAt the wavelength,One click measurementDirectly adjust the concentration of petroleum in the instrumentVSAbsorbance standard curve, direct reading of petroleum concentration.

Applicable water samples:Surface water (including drinking water sources), groundwater, and seawater.

Applicable users:Environmental protection and supervision, marine and maritime affairs, hydrology and water conservancy, university research institutes, third-party testing institutions, waterworks, sewage treatment plants, and various industrial enterprises.

2、 Performance characteristics:

1Adopting UV spectrophotometry to meet the new national standard for petroleum products《HJ 970-2018water quality Determination of petroleum products Ultraviolet spectrophotometry.

2、Three major detection functions:

(1)Quantitative detection of petroleum: calling standard curves and extraction ratios, one click measurement, direct reading of oil concentration in water, no need for manual calculation;

（2）Extraction agent purity determination: n-hexane purity qualified/Quick determination of non conformities to reduce the interference of extraction agent errors;

（3）Spectral measurement: Determine the spectra of samples, oils, and extractants for easy traceability and verification analysis of measurement values.

3The instrument supports the creation, storage, and retrieval of multiple standard curves, and supports3A method for establishing calibration curves to facilitate user calibration of instruments.

4、5Inch color LCD touch screen, user-friendly interface, intuitive and easy to understand menu navigation, convenient for user sample testing and parameter setting.

5Equipped with advanced automatic liquid-liquid extraction system, it achieves fully automatic liquid addition, extraction, separation, dehydration and adsorption, reducing manual operation and contact with toxic reagents, effectively ensuring the safety of experimental personnel.

6Equipped with20mmAutomatic five link pool, supporting instrument side single machine andPCOnline control enables one click automatic calibration and automatic switching of multiple samples for testing.

7Various output forms: Color LCD display, support for multiple printers, and powerful software for sample measurement and data processing when connected to a computer.

8Suitable for commercially available n-hexane extractants and HJ oil standard (national standard 10000759) by UV spectrophotometry, with traceable quantity values.

3、 Technical parameters:

1Testing indicators: petroleum;

2Detection principle: UV spectrophotometry;

3Execution standards: 《HJ 970-2018water quality Determination of petroleum products UV spectrophotometry;

4Wavelength range: measuring wavelength225nm, full wavelength190-1100nm；

5Measurement range:0.008~100mg/L(Oil content in water);

6Detection limit:0.008mg/L；

7Repeatability:≤±2%；

8Linear:R＞0.999；

9Measurement error:≤±2%；

10Three major functions: quantitative determination of petroleum (one click determination, no calculation required), extraction agent determination (rapid determination of n-hexane purity), and spectral measurement (traceability of sample oil extraction dose values);

11Applicable reference materials: Standard materials for petroleum composition analysis in marine environmental monitoring(HJOil Standard (National Standard)10000759）GBW（E）080913)；

12Calibration method: The instrument can create, store, and call multiple standard curves, and supports calibration of standard samples（2~10Point by point, input standard sample, input equation coefficient3A calibration method that supports zero crossing of neutral lines, neutral lines, and second-order fitting.

13Extraction agent: n-hexane, transmittance ≥90%；

14Extraction method: （25mLN-hexane:500mLAutomatic liquid-liquid extraction of water samples;

15Automatic liquid-liquid extraction system: simultaneous extraction1~3A sample/5In minutes, the sampling bottle is directly extracted on the machine, with automatic addition of extraction agent, automatic liquid-liquid extraction, automatic separation and collection, and automatic cleaning. It is equipped with an anhydrous sodium sulfate dehydration column and a magnesium silicate adsorption column. Fully enclosed and non-volatile, reducing manual operation and contact with toxic reagents.

16Sample pool rack:20mmAutomatic five link pool, supporting instrument side single machine andPCPC online control, one click automatic calibration and multi sample automatic switching detection.

17Color comparison dish:6individual20mmQuartz colorimetric dish;

18Operating interface:5Inch color LCD touch screen (supporting full keyboard input of numbers and letters), intuitive and easy to understand human-computer interaction interface, convenient operation, supporting Chinese, English, German, French, Spanish, Portuguese6National language.

19Operating System: The instrument comes with its own operating system, which can be operated on a single color touch screen; Can also be connected to a computerPCOnline operation, equipped with powerful functionsPCEnd data processing software.

20Data storage: The instrument has a built-in memory（236 KB）TheUSBMemory (supports unlimited expansion)PCUpload and save on the end.

21Power on self-test: light source, filter disc, sample holder, calibrated dark current, calibrated wavelength, checked energy, and checked system baseline to ensure stability and reliability.

22Light source: Long life deuterium lamp, tungsten lamp;

23Detector: silicon photodiode;

24Wavelength accuracy:±0.5nm；

25Range of luminosity:-0.301-3A，0-200%T，0-999.9C；

26Accuracy of photometry:± 0.003A@0.5A，± 0.006A@1A，±0.5%T@0-100%T；

27Printer: Serial port printer,USBprinter,PCEnd printers with multiple options;

28Clock: Built in real-time clock, accurately recording data testing time;

29Power supply:100-240VAC，50/60Hz，120W；

30Size and Weight: Oil Gauge456mm×360mm×185mm，11 kg.

4、 Configuration List:

1、OIW-970UV spectrophotometer (color touch screen operating system),1Set;

2、OIW-970 PCMachine data processing software,1Set (optional)

3、20mmAutomatic five link sample pool rack,1One;

4、20mmQuartz colorimetric dish,6individual/Set;

5Petroleum automatic liquid-liquid extractor,1Taiwan;

6Centrifuge,1Taiwan;

7Magnesium silicate adsorption column,10Root;

8Large capacity pipettes,1Support;

9Adjustable pipette,1Support;

10Petroleum standard substances:HJOil Standard (National Standard)10000759）GBW(E)080913，5Support.

New national standard HJ 970-2018 spectrophotometer oil analyzer

New national standard HJ 970-2018 spectrophotometer oil analyzer