Ruixin SP-FM2 Honey Quality Analyzer

Overview

The Ruixin SP-FM2 Honey Quality Analyzer is a compact, field-deployable photometric instrument engineered for rapid, quantitative assessment of key quality parameters in raw and processed honey—specifically moisture-equivalent solids, fructose + glucose (reducing sugars), and sucrose content. It operates on the principle of fixed-wavelength absorbance photometry at 540 nm, leveraging standardized colorimetric reaction protocols aligned with the Chinese national standard GB 18796–2005, which mandates compliance for honey marketed domestically. The device does not perform chromatographic or enzymatic quantification; rather, it measures optical density changes induced by acid-catalyzed dehydration reactions (e.g., hydroxymethylfurfural formation from reducing sugars under controlled heating and reagent conditions), calibrated against reference honey standards traceable to CNAS-accredited laboratories. Its design prioritizes operational robustness in non-laboratory environments—including apiary collection points, rural market inspection stations, and mobile food safety enforcement units—without requiring temperature-controlled rooms or trained analytical chemists.

Key Features

• Single-channel, dual-range photometric detection optimized exclusively for honey matrix interference minimization
• Integrated touchscreen interface (4.3-inch TFT, capacitive touch) enabling direct parameter selection, real-time absorbance/transmittance visualization, and on-device result interpretation
• On-board data storage supporting ≥500 test records with timestamp, sample ID, and operator tag (user-definable)
• Dual-mode connectivity: RS-232 serial port for legacy lab printers and USB 2.0 host interface for direct PC data export in CSV format
• Tri-power architecture: internal rechargeable lithium-ion battery (≥8 h continuous operation), universal AC adapter (220 V), and regulated DC 5 V input—enabling uninterrupted use during roadside inspections or off-grid sampling
• Field-ready enclosure: shock-absorbing aluminum alloy carry case (IP54-rated) with pre-aligned cuvette holder, reagent vial slots, and integrated pipette stand
• Pre-configured calibration curves for fructose+glucose (0–95.0% w/w) and sucrose (0–12.0% w/w), validated per GB/T 5009.8–2016 methodology

Sample Compatibility & Compliance

The SP-FM2 is validated solely for liquid honey samples meeting viscosity criteria defined in GB 18796–2005 (i.e., ≤ 1500 mPa·s at 20 °C). It is incompatible with crystallized, blended, ultrafiltered, or enzyme-modified honeys due to matrix-induced spectral scattering and incomplete reagent penetration. All assays require standardized sample homogenization and dilution using Ruixin-certified extraction buffers (catalog #RX-HN-BF-01). Regulatory alignment includes full traceability to GB 18796–2005, GB/T 5009.8–2016 (determination of reducing sugars), and GB/T 5009.9–2016 (sucrose determination). While not FDA 21 CFR Part 11 compliant out-of-the-box, audit logs and exported CSV files support GLP documentation requirements when paired with laboratory information management system (LIMS) integration via third-party middleware.

Software & Data Management

No proprietary software installation is required. Device-generated datasets export natively as UTF-8 encoded CSV files containing column headers: “Sample_ID”, “Test_Date_UTC”, “Test_Time_UTC”, “Fructose_Glucose_%w_w”, “Sucrose_%w_w”, “Absorbance_540nm”, “Operator_ID”, and “Calibration_Status”. Timestamps are synchronized to internal RTC (real-time clock) with ±2 sec/month drift. Firmware v2.3+ supports encrypted USB mass-storage mode to prevent unauthorized data modification. For regulatory reporting, exported files comply with ISO/IEC 17025 clause 7.7.1 (record retention) and may be ingested into validated LIMS platforms such as LabWare LIMS or Thermo Fisher SampleManager without transformation.

Applications

• Rapid pre-purchase screening of apiary-sourced honey lots at collection centers
• On-site verification of label claims during routine market surveillance by provincial Market Regulation Bureaus
• Batch release testing in small-scale packing facilities lacking wet chemistry labs
• Training and capacity building for rural food safety inspectors under SAMR’s “Honey Integrity Initiative”
• Reference method cross-validation in accredited testing labs performing GB-compliant honey certification

FAQ

Is the SP-FM2 suitable for detecting adulteration with corn syrup or rice syrup?
No. This instrument quantifies endogenous reducing sugars and sucrose only. It cannot identify exogenous C4 or C3 sugar syrups; confirmatory analysis requires HPLC-RI or stable carbon isotope ratio mass spectrometry (IRMS) per GB/T 18932.22–2003.
Does the analyzer require daily recalibration?
Factory-installed calibration remains stable for ≥90 days under normal storage (15–30 °C, <70% RH). A two-point verification (zero and mid-range standard) is recommended before each shift when used in high-throughput field deployments.
Can third-party reagents be used with the SP-FM2?
Only Ruixin-certified reagent kits (RX-HN-KIT-01 series) guarantee optical path consistency and reaction kinetics matching the embedded calibration curves. Substitution invalidates GB 18796–2005 compliance.
What is the minimum sample volume required per test?
Exactly 1.0 mL of filtered, room-temperature honey is required. Viscosity >1500 mPa·s necessitates pre-warming to 35 °C for 5 min with mechanical stirring prior to aspiration.
Is firmware upgrade supported remotely?
Firmware updates must be performed locally via USB drive using Ruixin-signed .bin files issued through authorized distributor portals. No OTA (over-the-air) capability is implemented for security and regulatory reasons.