Differences and characteristics between cold atomic absorption mercury analyzer and intelligent mercury analyzer

_{Differences and characteristics between cold atomic absorption mercury analyzer and intelligent mercury analyzer}

_{1Detection principle:}

The cold atomic absorption mercury analyzer is just a detection principle, based on the fact that elemental mercury can evaporate into mercury vapor at room temperature without heating and affect the wavelength253.7mmUltraviolet light has a strong absorption effect, and the mercury concentration is proportional to the absorption value within a certain concentration range. Mercury vapor253.7The absorption phenomenon of ultraviolet radiation basically conforms to this law: the general testing process of the instrument is to add stannous chloride to the water sample after some treatment（Sncl2）Reduce mercury ions in the water sample to elemental mercury, introduce mercury vapor into the absorption cell using a carrier gas (such as air), detect changes in ultraviolet intensity in the absorption cell using a photoelectric tube, and output the generated photoelectric signal to a digital display or recorder through conversion, amplification, and signal processing, thereby achieving analysis and testing of mercury content in the sample.

WNCG-2AIntelligent mercury analyzer, also known as microcomputer mercury analyzer, operates on the principle of cold atomic absorption method, but has significant differences in performance and usage

_{2Differences in Technical Performance}

l Cold atomic absorption mercury analyzer, as early as70It has been produced since ancient times, and the detection of ultraviolet light is done by phototubes, which can only display the absorption peak digitally. Therefore, every time a mercury detection project is carried out, mercury calibration is performed, a working curve is drawn, and the concentration value is finally calculated.

l WNCG-2AIntelligent mercury analyzer, also known as microcomputer mercury analyzer, is a truly intelligent mercury analyzer that processes high-precision ultraviolet detector signals through a microcontroller. It can automatically store working curves, calculate detection data directly, and automatically start the calibrated working curve the next time it is turned on, without the need to calibrate the instrument every time,. Greatly reducing the workload of operations.

l Nowadays, many users purchase through bidding from distributors. Because dealers are not very knowledgeable in technology, they tend to choose products with lower prices. However, there is a significant difference in technology between the two. Below is a detailed introduction to the technical characteristics.

l WNCG-2ATechnical description of intelligent mercury analyzer and microcomputer mercury analyzer:

1： Principle of microcomputer mercury analyzer

The microcomputer mercury detector is the latest intelligent mercury detector launched by our company. It combines functions such as single-chip microcomputer, data storage, and automatic drawing of working curves into a powerful mercury detector. This instrument adopts cold atomic absorption method, based on the fact that elemental mercury can evaporate into mercury vapor at room temperature without heating, and can measure the wavelength253.7nmUltraviolet radiation has a strong absorption effect, and within a certain range, the concentration of mercury is directly proportional to the absorption value, in accordance with Beer's law. Directly measure the mercury content and read the measured concentration.

2： Scope of application of microcomputer mercury analyzer

This instrument is suitable for measuring the mercury content in water, air, soil, food, cosmetics, chemical raw materials, and other industries such as environmental monitoring, health and epidemic prevention, tap water, and chemical industry.

3： Characteristics of microcomputer mercury analyzer:

l Equipped with imported sensors and a large color touch screen display, the operation is simple and convenient.

l The built-in mercury detection standard curve allows users to calibrate and automatically store the working curve, which is very convenient.

l Using microcontroller control and computing technology, directly displaying: mercuryconcentrationng/lTemperature and humidity. No manual calculation is required.

l The instrument has a storage function to store measurement dataAutomatic storage256group.

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

l The instrument has a communication interface that can be accessed throughUSBInterfaceImport data into computerPrint and Save.

4： Technical specifications of microcomputer mercury analyzer

1. Measurement principle: Cold atomic absorption method.

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

3. Measurement range:0-10ng/ml(Above)10ng/mlIt can be measured by diluting it.

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

4. Detection limit:0.02ng/ml

5. Linear correlation coefficient:R≥0.995

6. Simultaneously display: mercury concentrationng/ml,Temperature and humidity^*.

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

8. Has data query function and data storage256Group, there isUSBInterface^*.

9. The instrument has a working curve calibration function, which automatically saves according to user needs

The working curve can be directly measured using the previous curve during the next startup.

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

11. Power supply voltage:220V+10%

12. Instrument dimensions:410×400×150mm³

13. Environmental temperature for use:0-40℃