Agricultural Product Heavy Metal Detector

The Agricultural Product Heavy Metal Detector is a portable heavy metal detection device based on the principle of electrochemical stripping voltammetry. It features an integrated design with a built-in high-performance processor and Android operating system, enabling rapid and accurate detection of heavy metals such as cadmium (Cd), lead (Pb), arsenic (As), zinc (Zn), copper (Cu), and mercury (Hg) in grain, oil, water, and food samples. This instrument is widely applicable in agriculture, environmental monitoring, food safety, and other fields, particularly suited for on-site rapid testing requirements.

Applications include:
1. Agricultural testing: Rapid screening for heavy metal contamination (e.g., cadmium and lead) in grains (such as rice and flour).
2. Environmental protection: On-site monitoring of heavy metal contamination in water quality.
3. Food safety regulation: Testing for heavy metal content in food processing and distribution stages.
4. Laboratory auxiliary testing: As a rapid pre-screening tool for laboratories to enhance work efficiency.

• Advanced detection principle
  Electrochemical stripping voltammetry: By applying a reducing potential, metal ions are deposited on the working electrode surface. Then, by increasing the potential, they are oxidized and dissolved. The type of metal is identified based on the specific stripping potential, and its concentration is calculated.
  High sensitivity and accuracy: Equipped with a miniature electrochemical mixer, significantly enhancing detection sensitivity; test results meet national standard limits, with authoritative verification reports provided.

• High portability
  Dual power supply: Supports external 220V AC power supply, while also featuring a built-in lithium battery, enabling continuous operation for over 8 hours without an external power source.
  Integrated design: features a built-in computer control system, eliminating the need for an external computer, making it convenient for carrying and on-site operation.

• Efficient data processing and storage
  High-performance hardware configuration: equipped with a 1.2GHz quad-core processor and 1GB of memory, ensuring fast and stable data processing speeds.
  Large storage capacity: features 8GB of built-in physical storage space, capable of storing at least 50,000 sets of detection data.
  Convenient data output: Supports Wi-Fi/USB data transmission, with an built-in thermal printer for instant printing of test results.

• User-friendly operation
  Fully Chinese interface: Features a 10.1-inch color touchscreen with a resolution of 1024 x 800, offering intuitive and smooth operation.
  Intelligent software system: Built-in multiple sample databases automatically determine whether test results comply with national limit standards; supports networked remote upgrades to continuously expand testing projects.
  User permission management: Supports multi-level permission settings to ensure data security and standardized management.

• Rapid testing capability
  Short testing time: Single heavy metal testing takes as little as 30 seconds, and simultaneous testing of multiple heavy metals takes no more than 5 minutes.
  Simplified pretreatment process: The pretreatment process is simple and controllable, with the entire process from weighing to generating the report taking no more than 20 minutes (attached is the verification report from the National Grain and Strategic Reserves Administration Scientific Research Institute).
  High precision and repeatability: Potential reading error ≤ ±0.004V; current reading error ≤ ±0.03μA; peak potential repeatability ≤ 2%; Cadmium and lead recovery rates in rice: 90%-120%, stability (coefficient of variation) <10%; cadmium detection limit ≤0.10 mg/kg, linear range 0-2.0 mg/kg, r² ≥0.96.

• Easy maintenance and replacement
  Disposable screen-printed electrodes: ready-to-use and disposable, no polishing required, improving testing efficiency.
  Modular reagent kit design: provides dedicated reagent kits for different sample types (e.g., rice, water quality, agricultural products), with strong compatibility.