Portable Automatic UV Oil Analyzer

I. Purpose

On-site pollution source monitoring and emergency monitoring of petroleum oils in surface water, groundwater and seawater.

II. Technical Principle

The HD-QH600A portable fully automatic ultraviolet oil analyser is based on HJ 970-2018 Water quality — Determination of petroleum oils — Ultraviolet spectrophotometric method. The extraction solvent is stirred and disturbed so that oil substances are extracted from water in a set proportion; the extract is then dehydrated and passed through magnesium silicate to adsorb polar substances such as animal and vegetable oils; the absorbance is measured at 225 nm. The petroleum oil content and the absorbance value follow the Lambert-Beer law.

III. Key Features

1. ★The instrument uses a portable integrated design: sampling bottle, reagent bottle, waste liquid bottle, extraction device, tablet computer, main unit and lithium battery are all integrated in a single pull-along case for simple operation and easy transport.

2. ★One-key fully automatic operation: a single key press measures and imports the sample volume, injects the extraction solvent through a precision syringe, extracts automatically, switches the magnesium silicate column to adsorb animal and vegetable oils, transfers the extract to the cuvette for measurement and finally cleans the entire flow path. There is no memory effect and no manual intervention between steps.

3. ★Supplied with dedicated Horde analysis software integrating spectra, scanning, analysis and calculation; one-key automatic preparation of standard curves, automatic testing of standard samples and automatic testing of water samples.

4. The optical system is designed for good stability and shock resistance and can operate while the monitoring vehicle is moving.

5. Automatic demulsification function: demulsifier is added automatically.

6. ★Built-in thermal printer automatically prints data after measurement.

7. Supplied with a 10-inch tablet computer running Windows.

8. A single sample is fully analysed automatically in about 10 minutes.

9. A waste recovery device directs waste n-hexane reagent into a dedicated waste liquid bottle and waste water into a separate bottle, keeping the two completely separate.

10. ★AC/DC dual use with a built-in high-capacity lithium battery: no external mobile power supply is needed for on-site emergency monitoring; a full charge supports up to 8 hours of continuous operation.

11. ★Real-time display of battery charge and voltage for convenient on-site checking.

12. Non-contact automatic measurement and reading of the sample volume, with a volume measurement error of < 2%.

13. Supplied with wide-mouth sampling bottles as specified by the national standard: after sampling, the instrument reads the sample volume automatically and extracts directly on the instrument, avoiding transfer losses.

14. Extraction: automatic measurement of the sample level, automatic reagent dosing, automatic stirring extraction with adjustable speed, automatic transfer of the extract and automatic drainage of the sample in one integrated process.

15. ★Light source: xenon lamp, with a longer service life than conventional sources, no warm-up on power-on and better detection performance.

16. Measurement method: the sample is not transferred — volume is measured automatically, reagents are dosed automatically, and extraction, separation and measurement are all automatic.

17. Sampling method: brown wide-mouth bottles; the bottle is placed directly on the instrument for extraction, with automatic measurement and reading of the sample volume.

18. Extraction reagent: n-hexane.

19. Calibration method: standard curve.

20. Magnesium silicate column switching: after 40 programmed measurements the system automatically switches to the second magnesium silicate column.

IV. Technical Parameters