Multi-Channel Rice Heavy Metal Analyzer

This instrument is based on anodic stripping voltammetry and strictly complies with national standards. It is specifically designed for the rapid detection of trace heavy metals in grains (edible agricultural products). It features two independent detection channels, allowing for simultaneous, customized, and differentiated testing, which significantly improves testing efficiency. It is suitable for a variety of scenarios, including self-inspection by food manufacturers, rapid testing by market regulators, and screening during grain collection and storage.

The detection principle employs anodic stripping voltammetry, and the process is as follows:
Sample Preparation: After grinding the sample, an extraction solution is used to leach out heavy metal ions.
Enrichment: A negative voltage is applied, causing the metal ions to be reduced and enriched on the surface of the working electrode.
Stripping: A reverse scanning voltage is applied, causing the enriched metals to be reoxidized and stripped off, producing characteristic “stripping peaks.”
Quantification: Qualitative analysis is based on peak potential, while quantitative analysis is based on peak current; content is calculated by comparing the results to a standard curve.

Applicable standards include JJF 2037-2023 “Calibration Specification for Portable Anodic Stripping Voltammetric Heavy Metal Analyzers,” GB 2762-2022 “National Food Safety Standard: Maximum Limits for Contaminants in Food,” and T/GXAGS 010-2025 “Rapid Simultaneous Determination of Cadmium and Lead in Rice—Anodic Stripping Voltammetry.”

Applications include the following areas:
Food Security: Rapid determination of heavy metals in grains such as rice, paddy, brown rice, wheat, and corn, as well as their processed products.
Food Safety: Detection of heavy metals in foods such as vegetables, fruits, aquatic products, and dairy products.

• Android system, 10-inch color touchscreen all-in-one operation.

• Based on anodic stripping voltammetry, it offers significantly higher sensitivity than traditional colorimetric methods or X-ray fluorescence, enabling accurate quantification.

• Equipped with two independent detection channels that do not interfere with each other, allowing for simultaneous, customized, and differentiated testing.

• Streamlined and standardized sample preparation enables the simultaneous detection of multiple parameters, such as lead and cadmium, with a single extraction.

• The entire testing process for a single sample takes ≤20 minutes, and the stripping voltammetry curve is displayed in real time after loading the sample.

• The magnetic-attachment, spring-loaded electrode holder allows for convenient electrode replacement while preventing wear and ensuring a stable connection (patented technology).

• Disposable three-electrode assemblies are ready-to-use and require no polishing. This prevents cross-contamination and ensures a safe, pollution-free environment for both operators and the surrounding area.

• Cadmium and lead detection are included as standard; testing can be expanded and upgraded to include arsenic, mercury, copper, zinc, and other parameters based on user needs.

• Historical data can be stored locally and can also be uploaded wirelessly to a platform. Built-in high-speed thermal printer supports real-time printing of test results.

• Software can be remotely updated via Wi-Fi.