Cold atomic absorption mercury meter

Principle

Cold atomic absorption method is a national standard method. Our company has recently launched a mercury analyzer that uses the cold atomic absorption method (based on the fact that elemental mercury can evaporate into mercury vapor at room temperature without heating, and has a strong absorption effect on ultraviolet light with a wavelength of 253.7nm. Within a certain range, the concentration of mercury is proportional to the absorption value, in accordance with Beer’s law). Directly measure the mercury content and read the measured concentration.

Applicable scope

This instrument is used to measure the mercury content in water, air, soil, food, cosmetics, chemical raw materials, etc. It is also applicable to industries such as health and epidemic prevention, environmental monitoring, chemical industry, and tap water

Features:

1. The instrument adopts ultraviolet sensors, large screen color touch screen display

2. Built in mercury detection standard curve and K-value correction, users can calibrate and automatically store the working curve, and the operation is very convenient.

3. It can directly display absorbance on the interface and automatically calculate the correlation coefficient R, which is concise and clear.

4. Using microcontroller control and calculation technology, it directly displays the concentration of mercury ng/l, temperature, and humidity. No manual calculations are required.

5. The instrument has a storage function that automatically stores 256 sets of measurement data. Can import computer archives and print (requires software implementation)

6. The instrument has a data query function, which can directly query the measurement date, time, and measurement value.

7. If the customer experiences data disorder due to incorrect operations, they can directly click to restore the factory calibration settings, which is more user-friendly.

8. The linear offset of measurement data can be directly corrected according to the K value.

Technical indicators

1. Measurement principle: Cold atomic absorption method. (National Standard)

2. Automatically calculate and directly read the concentration of mercury without the need for user conversion.

3. Measurement range: 0-5/10ng/ml (dilution is required for measurement above 10ng/ml).

Temperature: -20 to 60 ℃. Humidity: 10-95% RH

4. Lower limit of detection: 0.2ng/ml

5. Linear correlation coefficient: R ≥ 0.995

6. Simultaneously display: mercury concentration ng/ml, temperature, humidity *.

7. Color touch screen display with time and date memory function *.

8. It has a data query function and stores 256 sets of data,

9. The instrument has a calibration function for working curves, which can be automatically saved according to user needs

The working curve can be directly measured using the previous curve when starting up next time.

Automatically display the absorbance value and calculate the correlation coefficient R. The measurement data can be corrected by K value, with a slight correction

10. Flow regulation range: 0-2.5L/min

11. Power supply voltage: 220V+10%

12. Instrument dimensions: 410 × 400 × 150mm