● The use of chemical reagents is small and the number is small; there are few devices for use; no inert gas is used.

● The specially made blistering bottles are very simple and there is no loss of mercury during operation.

● The unique circuit design allows the instrument to have high stability and sensitivity, with almost no drift in the baseline.

● Wide measurement range, continuous measurement of 0.01-100 μg/L concentration in the same state.

● The operation is simple, the computer prompts the entire operation process, and the intelligent data processing greatly reduces the workload of the experimenter.

Conforms to the national standard "GB / T16659-2008 Determination of mercury in coal by cold atomic absorption spectrophotometry".

The main purpose:

It is mainly used for the determination of mercury in coal. Samples need to be processed by chemical extraction, digestion, absorption, etc. into an aqueous solution.

Measuring principle:

Based on elemental mercury at room temperature, without heating, it can be volatilized into mercury vapor, and has a strong absorption effect on the ultraviolet ray with a wavelength of 253.7 nm. In a certain range, the concentration of mercury is proportional to the absorption value, which is in line with Bill. law. Applying the principle of cold atomic absorption, using Lambert-Beer's Law, adding an oxidizing water sample to the infusion bottle, inserting the die, adding stannous chloride at the entrance of the upper part of the die, and reducing the mercury ions in the water sample into Elemental mercury. The suction pump uses a carrier gas (such as air, etc.) to bring the mercury vapor evolved from the stannous chloride reacting with the water sample into the colorimetric cell. The receiver receives the light signal and determines the mercury vapor according to the change of the light intensity. concentration.

● Detection limit: 0.003 ug/L

● Correlation: R>0.999 (0.01 to 10 ug/L)

● Reproducibility: Measured mercury standard solution, 0.04 to 100 ug/L, standard deviation < 3%

Baseline stability: 0.00005A/30Min

● Power supply and power consumption: AC220V±10%, 50Hz, 40VA

● Overall dimensions: 360×370×120mm Net weight: 8Kg