Ruixin NCD-100A Multi-Parameter Food Safety Analyzer

Overview

The Ruixin NCD-100A Multi-Parameter Food Safety Analyzer is a benchtop microplate-based photometric detection system engineered for rapid, quantitative, and semi-quantitative analysis of chemical and biological contaminants in food, agricultural, and livestock products. It operates on the principle of enzyme-linked immunosorbent assay (ELISA), inhibition-based enzymatic reactions (e.g., acetylcholinesterase inhibition for organophosphate and carbamate pesticides), and colorimetric endpoint detection. The instrument integrates fixed-wavelength optical measurement (410, 450, 540, and 630 nm) with high-stability LED sources and precision photodiode detection, enabling compliance with internationally recognized reference methods including GB/T 5009.199–2003, NY/T 448–2001, and JJG 861–2007. Designed for regulatory screening environments, it delivers reproducible absorbance readings across a dynamic range of 0.000–4.500 Abs (display resolution: 0.001 Abs; internal calculation resolution: 0.0001 Abs), supporting both single- and dual-wavelength measurements with linear correlation coefficients (r) ≥0.995 under standardized calibration conditions.

Key Features

• Configurable microplate detection capacity: supports 96-, 48-, and 24-well formats to accommodate throughput variability and reagent economy.
• Integrated plate agitation module with adjustable shaking duration and intensity—ensuring homogeneous reaction kinetics and improved assay consistency.
• 5.7-inch high-contrast LCD touchscreen interface with optional external mouse support; bilingual (English/Chinese) UI and keyboard input—including full Chinese character entry for sample names, laboratory IDs, and reporting metadata.
• Onboard data management: stores up to 500 assay protocols and 10,000 test records with timestamp, operator ID, and plate position indexing.
• Multi-model curve fitting algorithms: two-point, linear, logarithmic, exponential, power, and polynomial regression—enabling flexible quantification across diverse assay chemistries.
• Universal AC input (90–260 VAC, 50/60 Hz) with built-in surge protection—suitable for field deployment in variable electrical infrastructure environments.
• Optional embedded modem module for remote diagnostics, firmware updates, and encrypted data export via PSTN or serial line.

Sample Compatibility & Compliance

The NCD-100A is validated for use with homogenized extracts from fruits, vegetables, cereals, meat, poultry, aquatic products, dairy, honey, and feed samples. Its assay portfolio aligns with national and industry standards for food safety surveillance, including but not limited to: organophosphate and carbamate pesticide residues (GB/T 5009.199); chloramphenicol, enrofloxacin, ciprofloxacin, sulfonamides, clenbuterol, furazolidone, diethylstilbestrol, salbutamol, melamine, malachite green, aflatoxin B1, zearalenone, ochratoxin A, and fumonisin B1 (NY/T series and SN standards). For pathogen serology, it supports indirect ELISA for antibodies against Classical Swine Fever Virus (CSFV), Japanese Encephalitis Virus (JEV), Porcine Circovirus (PCV), Foot-and-Mouth Disease Virus (FMDV), and Avian Influenza H5N1. All assays are compatible with commercially available, CE-IVD or GMP-manufactured test kits meeting ISO 13485 and CLSI EP12-A2 guidelines.

Software & Data Management

The embedded operating system provides audit-trail-capable data handling compliant with GLP principles. Each result includes immutable metadata: date/time stamp, user login, plate map coordinates, wavelength selection, curve-fit model, R² value, and raw absorbance values. Export options include CSV and PDF report generation with customizable templates—supporting bilingual (Chinese/English) headers, unit labeling, and regulatory statement footers. Data can be transferred via USB mass storage or RS-232 serial interface. While the system does not natively enforce FDA 21 CFR Part 11 electronic signature requirements, its logging architecture supports third-party validation for regulated laboratories implementing supplementary access controls and electronic record retention policies.

Applications

• Routine surveillance of pesticide residues in fresh produce at wholesale markets and origin inspection stations.
• Antibiotic and hormone residue screening in aquaculture farms, slaughterhouses, and dairy collection centers.
• Mycotoxin monitoring in grain silos, feed mills, and flour processing facilities.
• Adulterant detection (e.g., Sudan dyes, formaldehyde, SO₂, nitrites, melamine) in processed foods and condiments.
• Veterinary serology testing for endemic disease control programs in provincial animal health laboratories.
• Method development and kit verification in QC/QA labs serving food safety test kit manufacturers.

FAQ

Does the NCD-100A support custom wavelength selection beyond the four fixed filters?

No—the optical engine uses discrete LED sources centered at 410, 450, 540, and 630 nm, each with a nominal bandwidth of 8 ±1 nm. Continuous spectral scanning is not supported.
Can the instrument perform kinetic (time-resolved) assays?

No—it is designed exclusively for endpoint absorbance measurement. Kinetic modes (e.g., rate ELISA) are not implemented.
Is calibration traceable to NIST or other national metrology institutes?

Factory calibration uses certified neutral density filters traceable to CNAS-accredited reference laboratories. End-user recalibration is performed using supplied optical standard solutions.
What file formats are supported for data export?

CSV (for spreadsheet integration) and PDF (for printed reports), both generated directly from the device without PC dependency.
Are software updates provided free of charge after purchase?

Yes—Ruixin offers lifetime firmware updates at no cost, including new assay protocols, UI enhancements, and security patches distributed via USB or modem.