JKG-203-type mercury analyzer Introduction:
JKG-203-type mercury analyzer in line with national standards "GB 7468-87 water, total mercury determination of cold atomic absorption spectrophotometry."
Main purposes: mainly for the determination of mercury in water, solid, gas samples to be chemical extraction, digestion, absorption and other treatment into an aqueous solution after the determination. Measuring principle: based on elemental mercury at room temperature, without heating under the conditions, can be evaporated into mercury vapor, and the wavelength of 253.7nm UV has a strong absorption, within a certain range, the concentration of mercury and the absorption value is proportional to , In line with Bill's law. By using the principle of cold atomic absorption, using Lambert-Beer's law, adding oxidized water sample into the turning bottle, inserting into the die, adding stannous chloride into the upper entrance of the die to reduce the mercury ion in the water sample into Elemental mercury. Suction pump with carrier gas (such as air, etc.) will turn the bottle of stannous chloride and water sample reaction of mercury vapor escaping mercury vapor into the cuvette, the receiver receives optical signals, changes in light intensity determination of mercury vapor concentration. Features:
1 instrument high sensitivity, wide measuring range, good reproducibility.
2 less variety of chemical reagents, a small number; the use of small appliances and devices; do not use inert gas.
3 special turning bottle is very simple, no mercury in the operation of the loss.
4 unique circuit design makes the instrument has high stability and sensitivity, the baseline almost no drift.
5 wide measurement range, in the same state can be continuously measured 0.01-100 micrograms / liter concentration of the sample.
6 high degree of intelligence, built-in microcontroller, liquid crystal display. Curve fitting is done automatically and the measured concentration value is displayed directly. With the measurement result storage print function. Specifications:
Measuring range: 0 ~ 100 micrograms / liter
Detection limit: 0.003 micrograms / liter
Correlation: R> 0.999 (0.01 to 10 μg / L)
Reproducibility: Measured mercury standard solution, at 0.04 to 100 micrograms / liter, standard deviation <3%
Stability: Mercury standard solution prepared by the same reagent, without retest calibration curve, which can achieve the measurement error requirements.
Power and power consumption: AC220V ± 10%, 50Hz, 40VA
Dimensions: 360 × 370 × 120mm
Net weight: 8Kg
JKG-203 cold atomic absorption mercury detector is suitable for environmental monitoring, sanitation and epidemic prevention, tap water, chemical industry and other industries to measure the mercury content in water, air, soil, food, cosmetics and chemical raw materials.
