ANPRO SKJ-IA/I Food Safety Rapid Immunoassay Analyzer for Heavy Metals and Mycotoxins

Overview

The ANPRO SKJ-IA/I Food Safety Rapid Immunoassay Analyzer is an integrated, quantitative lateral flow immunoassay platform engineered for on-site and laboratory-based screening of critical food contaminants. It leverages colloidal gold-based immunochromatography coupled with precise reflectance photometry at 410 nm to deliver quantitative results for heavy metals (Cd, Pb) and mycotoxins (aflatoxin B₁, deoxynivalenol, zearalenone, ochratoxin A, fumonisin B₁, T-2 toxin) in a single instrument. Unlike qualitative strip readers, the SKJ-IA/I employs pre-calibrated, factory-loaded calibration curves stored in firmware—eliminating manual standard curve generation and minimizing operator exposure to reference standards. Its optical architecture features six independent detection channels, enabling parallel analysis of up to six samples or multi-target assays per run without cross-channel interference. Designed for compliance with AOAC Official Method guidelines for rapid immunoassays and aligned with ISO/IEC 17025 principles for method validation, the system supports traceable, auditable results suitable for internal quality control, regulatory pre-screening, and field surveillance programs.

Key Features

• Six-channel reflectance photometer optimized for colloidal gold signal quantification at 410 nm—ensuring high sensitivity and low background noise.
• Pre-programmed, lot-specific calibration curves embedded in device firmware; eliminates need for user-handling of certified reference materials (CRMs) and reduces biosafety risk.
• Quantitative output with CV ≤0.2% across repeated measurements—validated against NIM (National Institute of Metrology, China) reference methods and third-party interlaboratory studies.
• Universal sample compatibility: validated for cereals (wheat, rice, corn), feedstuffs, fruits, vegetables, tea, and dairy matrices following standardized extraction protocols (e.g., AOAC 2012.01 for mycotoxins; GB 5009.12–2017 for Cd/Pb).
• Portable form factor with integrated battery, ruggedized casing, and optional trolley or carry-case configuration—designed for deployment in grain elevators, border inspection posts, mobile labs, and rural extension centers.
• Minimal training requirement: intuitive touchscreen interface with guided workflow; no wet chemistry expertise or dedicated lab infrastructure required.

Sample Compatibility & Compliance

The SKJ-IA/I supports quantitative detection across diverse food and feed matrices without hardware modification. Extracts are prepared using ANPRO-certified kits compliant with AOAC 2012.01 (mycotoxins) and GB 5009.12–2017 (heavy metals). Detection limits meet or exceed Codex Alimentarius maximum levels: Cd (0.02 ppm), Pb (0.02 ppm), aflatoxin B₁ (1 ppb), deoxynivalenol (0.1 ppm), zearalenone (10 ppb), ochratoxin A (1 ppb), fumonisin B₁ (0.1 ppm), and T-2 toxin (0.1 ppm). The system’s measurement traceability aligns with ISO/IEC 17025 requirements for uncertainty estimation, and data integrity conforms to FDA 21 CFR Part 11 principles through secure user authentication, electronic audit trails, and non-erasable result logs.

Software & Data Management

The embedded Android-based operating system provides real-time result visualization, automatic pass/fail flagging against configurable regulatory thresholds (e.g., EU Commission Regulation (EC) No 1881/2006), and CSV export via USB or Bluetooth. All assay metadata—including lot numbers of test strips, operator ID, timestamp, environmental temperature/humidity, and raw reflectance values—are permanently recorded. Software updates are delivered via encrypted OTA (Over-The-Air) packages with SHA-256 signature verification. Data export files include digital signatures compatible with LIMS integration and GLP/GMP documentation workflows.

Applications

• Pre-harvest and post-harvest grain safety monitoring at cooperatives and storage facilities.
• Routine QC screening in feed mills and flour processing plants.
• Border phytosanitary inspections for imported cereals and oilseeds.
• Field-level surveillance by agricultural extension services in high-risk aflatoxin or cadmium-endemic regions.
• Emergency response testing during contamination incidents (e.g., DON outbreaks in wheat).
• Contract testing laboratories performing accredited rapid screening prior to confirmatory LC-MS/MS analysis.

FAQ

What regulatory standards does the SKJ-IA/I support for reporting?
It supports reporting aligned with Chinese GB standards (e.g., GB 2762–2022 for heavy metals; GB 2761–2017 for mycotoxins), EU Commission Regulations, and Codex Alimentarius limits—with built-in threshold libraries that can be customized per jurisdiction.
Can the instrument be used without ANPRO-branded test strips?
No. Calibration curves are strip-lot-specific and encrypted; only ANPRO-certified lateral flow strips with matching QR-coded lot identifiers are recognized by the firmware.
Is the 25-minute assay time inclusive of sample extraction?
No. The 25-minute figure refers to the instrument readout and calculation phase only; sample extraction and dilution require an additional 10–15 minutes depending on matrix complexity.
How is measurement traceability ensured?
Each unit ships with a factory-issued metrological verification certificate referencing NIM-traceable standards; annual recalibration is recommended using ANPRO’s certified reference strip sets.
Does the system support remote data synchronization?
Yes—via optional ANPRO Cloud Connect module, which enables encrypted, TLS 1.3-secured upload of anonymized aggregate reports to centralized dashboards for regional food safety intelligence mapping.