ANPRO APN-S Heavy Metal Rapid Detector for Cadmium, Lead, and Copper in Aquatic Products

Overview

The ANPRO APN-S Heavy Metal Rapid Detector is a field-deployable, quantitative immunoassay platform engineered for on-site screening of cadmium (Cd), lead (Pb), and copper (Cu) in aquatic products and meat matrices. It leverages patented colloidal gold-based lateral flow immunoassay (LFIA) technology—specifically optimized for heavy metal quantification—wherein competitive binding between target analytes and pre-conjugated gold-labeled antibodies generates optical signal intensity inversely proportional to analyte concentration. Unlike conventional qualitative strip tests, the APN-S integrates a precision optical reader with embedded calibration algorithms and pre-loaded standard curves, enabling trace-level quantitation without operator handling of reference standards. The system operates on the principle of antigen–antibody competition under controlled capillary flow conditions, with detection sensitivity validated against ISO/IEC 17025-accredited reference laboratories. Designed for regulatory compliance in food safety monitoring programs, it supports rapid triage prior to confirmatory analysis by ICP-MS or AAS.

Key Features

• Quantitative multi-analyte detection: Simultaneous measurement of Cd, Pb, and Cu in a single run using dedicated test cassettes.
• Pre-calibrated curve library: Factory-loaded calibration curves eliminate manual standard preparation and reduce cross-contamination risk.
• Integrated data capture: Built-in GPS module records geotagged test metadata (time, location, operator ID) for audit-ready traceability.
• Touchscreen interface: 7-inch resistive color LCD with intuitive icon-driven navigation; no keyboard or external peripherals required.
• On-device thermal printing: Embedded mini-printer produces tamper-evident hard-copy reports compliant with GLP documentation requirements.
• Ruggedized portable design: All components—including reader, cassettes, extraction reagents, and power bank—fit within a single IP54-rated carrying case (38 × 29 × 15 cm).
• Low operational barrier: Minimal training required; no laboratory infrastructure, fume hood, or certified technician needed.

Sample Compatibility & Compliance

The APN-S is validated for homogenized tissue samples from finfish, shellfish, crustaceans, and mammalian muscle tissues following standardized sample preparation protocols (AOAC 2015.01–compatible extraction). Detection ranges meet practical regulatory thresholds: Cd (0.1–5 mg/kg), Pb (0.2–10 mg/kg), and Cu (2–50 mg/kg), with intra-assay CVs ≤12% and inter-assay CVs ≤15% across three independent validation batches. Performance data are supported by third-party evaluation reports issued by CNAS-accredited institutions (e.g., SGS China, CMA-certified labs). While not a replacement for definitive instrumental methods per ISO 17025, the APN-S satisfies screening-level requirements under China’s GB 2762-2022 and EU Commission Regulation (EC) No 1881/2006 for rapid hazard identification in supply chain monitoring.

Software & Data Management

Firmware v3.2 includes encrypted local storage (2GB internal flash) and optional cloud synchronization via Wi-Fi or 4G LTE. Raw optical density values, calibration logs, and user audit trails are stored with timestamped digital signatures. Export formats include CSV and PDF (print-ready), compatible with LIMS integration through RESTful API endpoints. Data transmission adheres to TLS 1.2 encryption; system logs retain full change history for FDA 21 CFR Part 11-compliant electronic records when deployed in GMP environments. Firmware updates are delivered via secure OTA channel with SHA-256 signature verification.

Applications

• Port-of-entry screening for imported seafood shipments
• In-plant QC at aquaculture processing facilities and cold-chain distribution hubs
• Municipal food safety surveillance during routine market inspections
• Emergency response testing during contamination incidents (e.g., industrial runoff events)
• Research-grade preliminary assessment in academic food toxicology studies
• Training modules for food safety extension officers in resource-limited settings

FAQ

What sample preparation is required prior to testing?
Homogenized tissue (2 g) is extracted with 10 mL of proprietary buffer solution; centrifugation (3,000 × g, 5 min) yields clarified supernatant for direct application to the test cassette.
Can the APN-S detect other heavy metals beyond Cd, Pb, and Cu?
No—the current hardware and assay cartridge design are optimized exclusively for cadmium, lead, and copper. Future firmware-enabled expansion requires new cassette development and regulatory revalidation.
Is method validation documentation available for regulatory submission?
Yes—full analytical validation reports (including specificity, linearity, LOD/LOQ, ruggedness, and matrix interference studies) are provided upon request under NDA terms.
How often does the instrument require recalibration?
Factory calibration remains stable for 12 months under normal operating conditions; annual verification using included control cassettes is recommended.
Does the device support multi-language interfaces?
English and Simplified Chinese are pre-installed; additional language packs may be loaded via USB firmware update.