SJB-802 Portable Heavy Metal Ion Analyzer Introduction: The SJB-802 heavy metal rapid detector adopts anodic stripping voltammetry, which supports both screen printing electrode and three electrode measurement. It can be used for the detection of heavy metals such as lead, cadmium, copper, arsenic, mercury, zinc, selenium, manganese, nickel and chromium. This instrument has a detection limit and detection sensitivity similar to those of large instruments such as atomic absorption spectrometry. It is novel in design, compact in size, simple in operation, high in intelligence and small in error. The screen printed electrode used in the instrument does not need to be pretreated and maintained during the detection process. It has the advantages of plug and play, use and throw, low cost, high sensitivity and easy to scale production. It can be widely used in environmental detection, social security, scientific research and other fields, and has broad application value and broad market prospects. characteristic: 1. Visual design: a) Automatic calibration, automatic cleaning, operation process interface display; b) The waiting time interface of measurement, calibration, cleaning and other processes is displayed; c) Prompt will be given when the sensitivity is not selected properly; d) Display measurement scanning curve for reading analysis; 2. Anodic stripping voltammetry is adopted, and the detection limit is low, as low as 0.1 ppb; 3. A three electrode detection system and a printed electrode system are used together with a stirring system to ensure the accuracy of detection; 4. Fast detection speed, single measurement can be completed within 5 minutes at the fastest; 5. Built in quick test, standard test, standard addition and other measurement modes, the detection method can be directly called, and the quick test mode completes the detection in three steps, fast and convenient; 6. Built in detection methods for 10 ions, including lead, cadmium, copper, arsenic, mercury, zinc, selenium, manganese, nickel and chromium, which can be directly called; Easily expand other heavy metal ion detection methods through software upgrading; 7. Comply with GLP specification, support data storage, deletion and query, with maximum storage capacity of 2000 groups. At the same time, it supports data output and saving to SD card; 8. It has a standard USB communication interface and REX data acquisition software, which supports connection with PC and data output; Technical parameters: Model: SJB-802 Measurement range: zinc, lead, cadmium, copper, arsenic: (0~1000) μ g/L； Expandable to 10mg/L; Mercury, nickel and chromium: (0~100) μ g/L； It can be expanded to 1mg/L; Selenium and manganese: (0~500) μ g/L； Expandable to 5mg/L Polarization voltage accuracy: no more than ± 1% or ± 5mV (≤ 0.5V and ≥ -0.5V) Detection limit: lead, cadmium, arsenic, copper: ≤ 0.5 μ g/L； Zinc, selenium, manganese, nickel and chromium: ≤ 1 μ g/L； Mercury: ≤ 0.1 μ g/L Indication error: lead, cadmium, arsenic, copper, zinc, selenium, manganese, nickel, chromium: no more than ± 5% or ± 5.0 μ g/L（≤100 μ g/L）； Mercury: not more than ± 5% or ± 3.0 μ g/L（≤60 μ g/L） Repeatability: ≤ 3% Influence deviation of power supply voltage change on concentration measurement value: no more than ± 10% Influence deviation of ambient temperature change on polarization voltage: no more than ± 0.5mV/℃
Introduction: The SJB-802 heavy metal rapid detector adopts anodic stripping voltammetry, which supports both screen printing electrode and three electrode measurement. It can be used for the detection of heavy metals such as lead, cadmium, copper, arsenic, mercury, zinc, selenium, manganese, nickel and chromium.
