The SH-21Z ultraviolet oil analyzer is an efficient and environmentally friendly instrument developed based on the requirements of national environmental monitoring technical specifications, combined with China's environmental pollution situation and the needs of various environmental monitoring departmentsaccuracyQuick oil measuring instrument.This instrumentReplacing the banned carbon tetrachloride extractant in infrared spectroscopy with n-hexane extractant,completelyComplies with the new national standard《HJ970-2018 Determination of Petroleum in Water Quality - UV spectrophotometric methodofrequirement.This product is easy to operate, has good precision, high sensitivity, stable performance, and can meet various application requirements of customers.

This instrument is suitable for the determination of petroleum in surface water, groundwater, and seawater.Widely used inEnvironmental monitoring system, petrochemical industryColleges and universities, research institutes, sewage treatment plantsWater Conservancy and Hydrology、WaterworksPetrochemicals, papermaking, pharmaceuticalssteel、Industries such as agricultural environmental monitoring

【Detection principle】

stayUnder the condition of pH ≤ 2, the oil substances in the sample are extracted by n-hexane. The extract is dehydrated by anhydrous sodium sulfate and then adsorbed by magnesium silicate to remove polar substances such as animal and plant oils. The absorbance is measured in the ultraviolet region, and the petroleum content and absorbance value comply with Lambert Beer's law, thus quantitatively analyzing the petroleum content in water.

[Standard Configuration]
Separation funnel, chromatography column, specialized extraction rack, specialized colorimetric dish, colorimetric dish rack, solid reagent

[Main functions]

1. Fully compliant with the new environmental standards, using ultraviolet light for detection, the instrument automatically measures absorbance, and then automatically calculates the final concentration. The operation is simple and the results are accurate

2. The extraction agent used is n-hexane, which has a much lower impact on humans and the environment than the carbon tetrachloride extraction used in infrared oil detectors

3. Adopting a 10.1-inch high-resolution true color touch screen, the user-friendly and concise menu design makes operation more time-saving. A single interface contains detailed information such as detection time, detection items, absorbance, transmittance, concentration values, wavelength values, curves, etc

4. Measurement items can be selected as automatic or semi-automatic measurement

5. The instrument has scanning function and can evaluate the purity of blank

6. Built inMultiple presetsstandard curve, and supports custom curves
7. Large capacityCan be stored5 million setsdata

7. Built in thermal printerRealize the integration of detection and data printing, which canPrint currentandhistorical data

9. The instrument has a self checking function and can calibrate the instrument system

10beltUSB interface，canrealizationdata transmissionfunction

Technical indicators
1. Measurement indicators: petroleum, animal and vegetable oils, and total oil

2. Display mode:10.1-inch touch screenChinese language with personalized icon operation interface

3Wavelength range:200-400nm

4Detection limit:0.001mg/L
5. Measurement range: 0.001～1000mg/L

6. Range：Multi range selection

7. Extraction agent：N-hexane

8. Measurement time: 20-30 minutes

9. Luminous stability: ≤ 0.001A/10min

10. Repeatability: ± 3%

11. Measurement error: ≤ ±5%

12. Temperature indication error: ± 5%

13. Uniformity of temperature field: ± 0.5

14. Environmental temperature: 5-40 ℃

15. Environmental humidity: Relative humidity<85% (no condensation)

16. Extraction method: manual extraction

18Printing method: Built in thermal printing

19. Net weight: 10.3Kg

20. Product size: 220 * 120 * 90mm