JiDa-Xiaotianshen GDYQ-100CX Food Safety Rapid Detection Kit

Overview

The JiDa-Xiaotianshen GDYQ-100CX Food Safety Rapid Detection Kit is a field-deployable, integrated analytical platform engineered for on-site screening of chemical and biological hazards in food and agricultural commodities. It operates primarily on dry-chemistry principles—including enzyme inhibition, immunoassay (lateral flow and ELISA-like strip formats), and colorimetric reaction kinetics—enabling qualitative or semi-quantitative determination of target analytes without laboratory infrastructure. Designed for regulatory enforcement and quality assurance personnel, the system supports real-time decision-making at points of entry, wholesale markets, retail outlets, and mobile inspection units. Its architecture prioritizes operational robustness under variable ambient conditions (10–35 °C, ≤85% RH), minimal reagent consumption, and compliance with foundational food safety surveillance workflows aligned with China’s GB standards and internationally recognized rapid-screening paradigms (e.g., AOAC Performance Tested Methods™ for screening-level validation).

Key Features

• Portable, battery-powered design with integrated sample handling tools (pipettes, extraction tubes, timers, and calibration controls) enabling full workflow execution within <5 minutes per test.
• Dry-reagent format for select assays eliminates solvent-based extraction, centrifugation, or derivatization—reducing operator training requirements and eliminating organic waste streams.
• Multi-target capability across >12 common food safety hazards, including organophosphate/carbamate pesticides (via acetylcholinesterase inhibition), nitrite, formaldehyde, sulfite, melamine, aflatoxin B₁, and pathogenic bacterial antigens (e.g., Salmonella, E. coli O157:H7).
• Standardized visual interpretation (color development against reference charts) supported by optional digital reader compatibility (GDYQ-Reader Pro, sold separately) for objective absorbance measurement at 450–630 nm and GLP-compliant data logging.
• Pre-packaged, lyophilized reagents with 18-month shelf life at room temperature; lot-specific calibration certificates provided with each kit batch.

Sample Compatibility & Compliance

The GDYQ-100CX accommodates diverse matrices without homogenization or filtration in most cases: fresh produce (lettuce, cucumber, tomato), meat and aquatic products (fish fillets, shrimp), dairy (milk, yogurt), grain-based foods (rice, flour), and processed beverages (juices, soy sauce). Liquid samples (e.g., water, brine, milk) require only dilution; solids undergo rapid aqueous or buffer-based extraction (≤2 min). All assay protocols adhere to GB/T 5009.x series methods and are validated per CNAS-CL01:2018 (equivalent to ISO/IEC 17025) for screening sensitivity and specificity thresholds. While not intended for definitive quantification per ISO 17025 accredited testing, results meet national regulatory criteria for “presumptive positive” triage under China’s Food Safety Law (Article 112) and support follow-up confirmatory analysis via HPLC-MS or LC-MS/MS.

Software & Data Management

The kit itself is hardware-agnostic and does not include embedded firmware. However, when paired with the optional GDYQ-Reader Pro handheld spectrophotometer, it interfaces with JiDa-Xiaotianshen’s GDYQ-DataLink v3.2 software (Windows/macOS). This application enables encrypted CSV export, audit-trail generation (user ID, timestamp, GPS geotagging, instrument serial number), and customizable reporting templates compliant with internal QA documentation requirements. Data integrity safeguards include password-protected user roles, electronic signature capture, and automatic backup to network drives—supporting alignment with basic GLP documentation expectations though not FDA 21 CFR Part 11 certification (as the system is classified as a screening tool, not a regulated clinical diagnostic device).

Applications

• Regulatory field inspections by municipal market supervision bureaus conducting routine surveillance at wet markets, cold-chain logistics hubs, and school canteen supply chains.
• Pre-harvest and post-harvest quality control in cooperative farms and agro-processing facilities seeking rapid verification of pesticide residue compliance prior to shipment.
• Emergency response during foodborne illness outbreaks—enabling parallel testing of suspect samples across multiple analyte classes to narrow contamination sources.
• Training and capacity building for rural extension officers and community food safety volunteers operating under provincial health department programs.
• Supplier qualification audits where buyers require documented evidence of incoming raw material safety screening before factory acceptance.

FAQ

Is the GDYQ-100CX certified for use in official regulatory testing?
It is approved for preliminary screening under China’s State Administration for Market Regulation (SAMR) guidance documents (e.g., SAMR Notice No. 12/2021), but positive results must be confirmed by accredited laboratories using reference methods.
Can test results be exported in PDF or Excel format?
Yes—when used with the GDYQ-Reader Pro and GDYQ-DataLink software, reports generate in PDF (with embedded digital signatures) and CSV/Excel for integration into LIMS or ERP systems.
What is the detection limit range across different analytes?
Limits vary by assay: e.g., 0.02 mg/kg for parathion (vegetables), 1.0 mg/L for nitrite (water), and 5 µg/kg for aflatoxin B₁ (corn); full specifications are provided in the Certificate of Analysis for each kit lot.
Does the kit require refrigerated storage?
No—lyophilized reagents are stable at 15–30 °C; however, humidity-controlled storage (<60% RH) is recommended to preserve strip integrity over the full 18-month shelf life.
Are replacement reagent kits available separately?
Yes—GDYQ-100CX consumable modules (e.g., Pesticide Test Cartridge Set, Toxin Strip Pack, Preservative Assay Kit) are sold individually with traceable lot numbers and CoA documentation.