Portable Water Quality Heavy Metal Detector WJS-ASV, Chengdu Water Quality Heavy Metal Detector, Water Quality Detector Manufacturer

Heavy metal pollution has become a serious problem faced by *. The World Health Organization has published safety reference values for heavy metal content in water in various fieldsppbGrade; The Chinese government has also introduced many relevant standards in environmental safety, such as《GB 5749—2006Sanitary Standards for Drinking Water 《CJ/T 206—2005The "Urban Water Supply Quality Standards" and other regulations stipulate that the heavy metal content in safe drinking water should be as low asppbGrade.

The existing optical detection methods have high operating costs and low detection sensitivity（ppm）； However, atomic absorption spectroscopy instruments are expensive and require complex sample preparation, making them unsuitable for on-site or emergency testing.

Portable Water Quality Heavy Metal Detector WJS-ASV, Chengdu Water Quality Heavy Metal Detector, Water Quality Detector ManufacturerDetection principle - anodic stripping voltammetry

Anodic stripping voltammetry applies a reduction potential to the working electrode. When the electrode potential exceeds the precipitation potential of a certain ion, the metal ions in the solution are reduced to metal and electroplated on the surface of the working electrode; When enough metal is deposited on the surface of the working electrode, increasing the potential at a constant rate will cause the metal on the plated electrode to dissolve (oxidize). Each metal has a specific dissolution (oxidation) reaction voltage. The type of metal is identified based on the potential value generated by dissolution (oxidation), and the difference in dissolution (oxidation) potential between different types of metals is measured. At the same time, multiple metals are measured, their currents are measured, and the corresponding potentials are recorded to calculate the concentration of metal ions.

Anodic stripping voltammetry, with its low cost and high sensitivity, has been widely used in pharmaceutical, biological, and environmental analysis in Europe and America, replacing traditional atomic absorption methods; AmericaEPAThe institution has listed it as a standard testing method, such asEPA7063、EPA7472Wait.

Product Features

※1Full Chinese color screen display, directly showing the test results, easy to operate.

※2Can detect heavy metal ions such as zinc, cadmium, lead, copper, mercury, arsenic, chromium, nickel, manganese, and iron.

※3The detection accuracy is better thanppbLevel, the fastest detection time is less than30In seconds.

※4Lightweight, small in size, easy to carry, suitable for field and laboratory testing

※5Equipped with computer expert analysis software for easy data analysis

※6Stable electrode performance and easy maintenance

※7、220VOr battery powered

※8Can store more than1,000Group measurement data

?TECHNICAL INDEX

1Measurement of ions: zinc, cadmium, lead, copper, mercury, chromium, nickel, manganese, etc

2Resolution:0.1ppb

3Detection limit:0.1ppb

4Detection accuracy: ±3%（100ppb）

5Temperature range:-20℃ to+50℃

6Testing time:30second

7User interface: Color LCD screen display

9Power supply:220VBuilt in battery

Measurement detection limit:

Taken from《GB-3838-2002Surface Water Environmental Quality Standards