Top Cloud-agri TP-SJ-10 Colloidal Gold-Based Pesticide Residue Rapid Tester

Overview

The Top Cloud-agri TP-SJ-10 Colloidal Gold-Based Pesticide Residue Rapid Tester is a dedicated lateral flow immunoassay (LFIA) reader engineered for quantitative and semi-quantitative analysis of pesticide residues in agricultural commodities. It operates on the principle of colloidal gold immunochromatography—where antigen–antibody binding on nitrocellulose membranes generates visible test (T) and control (C) lines, with optical density correlated to analyte concentration. Unlike conventional visual interpretation, the TP-SJ-10 employs a high-resolution CCD imaging system to capture and digitize assay strips with sub-pixel spatial fidelity. Integrated algorithms perform real-time image processing to extract color intensity, C/T signal ratios, and line morphology—enabling objective, operator-independent result classification (negative/positive/inconclusive) and concentration estimation calibrated against reference standards. Designed for deployment at farm gates, wholesale markets, and food safety inspection stations, it supports rapid screening without laboratory infrastructure or trained technicians.

Key Features

• 10-channel parallel detection architecture enables simultaneous analysis of up to 10 lateral flow test strips per cycle, significantly improving throughput for batch monitoring.
• Automated strip recognition logic distinguishes valid assay cards from damaged, expired, or improperly manufactured devices using edge detection and background uniformity metrics—reducing false negatives from invalid assays.
• 10.1-inch Android-powered capacitive touchscreen provides an intuitive, icon-driven interface compliant with IEC 62366 usability engineering standards; supports multi-touch gestures and customizable user profiles.
• On-device data management includes timestamped storage of raw CCD images, processed C/T values, sample metadata (e.g., commodity type, lot ID, collector ID), and geotagged location coordinates via integrated GPS/AGPS.
• Embedded instructional video library accessible directly from the main menu ensures immediate operational readiness—eliminating dependency on external training documentation.
• Multi-format printing options include thermal roll paper (for field receipts), adhesive label stock (for traceability tags), and A4 output (for audit-ready reports), all configurable via driver-level settings.
• Dual-network redundancy: simultaneous Wi-Fi and wired Ethernet (RJ45) connectivity ensures uninterrupted cloud synchronization; optional cellular modems (3G/4G/5G) maintain uptime in low-infrastructure environments.

Sample Compatibility & Compliance

The TP-SJ-10 is validated for use with commercially available colloidal gold-based lateral flow test kits targeting over 70 active pesticide ingredients—including organophosphates (e.g., chlorpyrifos, omethoate), carbamates (e.g., carbofuran, methomyl), neonicotinoids (e.g., imidacloprid, thiamethoxam), pyrethroids (e.g., cypermethrin, deltamethrin), fungicides (e.g., carbendazim, azoxystrobin), and plant growth regulators (e.g., gibberellin, chlorpyrifos-methyl). It complies with national food safety standards GB/T 27404–2008 (Laboratory Quality Control Guidelines for Food Microbiology and Chemical Testing) and supports alignment with ISO/IEC 17025:2017 requirements for method validation when used within documented quality management systems. While not certified under FDA 21 CFR Part 11, its audit trail functionality—including immutable timestamps, user login logs, and image hash verification—facilitates GLP/GMP-aligned recordkeeping.

Software & Data Management

Data acquisition, processing, and transmission are managed by proprietary firmware v3.2+, featuring cryptographic signing of all uploaded records to prevent tampering. Raw images and derived metrics are stored locally in SQLite databases with AES-256 encryption; SD card backups adhere to FAT32 partitioning conventions for cross-platform compatibility. Cloud integration uses HTTPS/TLS 1.3 to transmit structured JSON payloads containing sample IDs, detection results, instrument serial numbers, and geolocation metadata to Top Cloud-agri’s secure SaaS platform. The platform provides role-based dashboards for traceability mapping, statistical trend analysis (e.g., residue incidence by region/commodity), and automated generation of electronic certificates of conformity (e-COC) compliant with China’s Agricultural Product Quality and Safety Law.

Applications

This instrument serves as a frontline screening tool in decentralized food safety assurance workflows: pre-harvest field testing to guide harvest timing; post-harvest inspection at collection centers prior to cold chain entry; wholesale market surveillance to enforce vendor accountability; and regulatory sampling by municipal food and drug administration bureaus. Its portability, battery-free AC operation, and minimal consumable dependency make it suitable for mobile inspection units and rural extension services. When deployed alongside digital traceability systems (e.g., QR-coded origin labels), it closes the data loop between detection events and blockchain-enabled supply chain records.

FAQ

Does the TP-SJ-10 require calibration with external standards before each use?
No—factory calibration is retained across power cycles; however, daily performance verification using included control strips is recommended per internal SOPs.
Can third-party lateral flow test kits be used with this instrument?
Yes, provided they conform to standard dimensions (e.g., 60 mm × 30 mm format) and utilize colloidal gold conjugates compatible with 630 ± 10 nm optical filters.
Is raw image export supported for independent reanalysis?
Yes—CCD captures are saved in lossless PNG format with embedded EXIF metadata, including exposure time, gain setting, and ambient light sensor readings.
How is data integrity ensured during network outages?
All measurements are queued locally with SHA-256 checksums; uploads resume automatically upon connection restoration, with duplicate suppression logic preventing redundant entries.
What regulatory documentation is supplied with the instrument?
Each unit ships with a Declaration of Conformity (DoC) to GB/T 19001–2016 (ISO 9001), factory test report, and software validation summary per YY/T 0287–2017 (ISO 13485 adaptation for medical-grade instruments).