GDYQ-5000S Sesame Oil Rapid Quantitative Analyzer by Jida Xiaotian’e
| Brand | Jida Xiaotian’e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYQ-5000S |
| Function Type | Single-Analyte Dedicated Instrument |
| Sample Type | Sesame Oil Only |
| Detection Time | 20 min |
| Quantification Range | 0.0–100.0% |
| Detection Limit | 3.0% |
| Accuracy | ±2% |
Overview
The GDYQ-5000S Sesame Oil Rapid Quantitative Analyzer is a dedicated, benchtop optical-chemical detection system engineered for the precise and rapid quantification of authentic sesame oil content in edible oil samples. It operates on the principle of selective colorimetric reaction coupled with photometric absorbance measurement at a defined wavelength—optimized for the characteristic chromophore formed when sesame-specific lignans (e.g., sesamin and sesamolin) react with proprietary reagents under controlled acidic catalysis. Unlike generic spectrophotometers or GC-based methods, the GDYQ-5000S integrates sample-specific chemistry, thermal stabilization, and algorithmic calibration to deliver quantitative results within 20 minutes—enabling frontline quality control labs, regulatory inspection units, and edible oil processors to perform routine authenticity verification without reliance on off-site reference laboratories.
Key Features
- Dedicated single-analyte architecture: Optimized exclusively for sesame oil quantification—not a multi-parameter platform—ensuring minimal cross-reactivity and high method specificity.
- Integrated sample preparation module: Includes a standardized centrifugal separation unit and temperature-controlled derivatization chamber to ensure consistent reaction kinetics across batches.
- Embedded microprocessor control: Features an industrial-grade 8-bit MCU with real-time clock, non-volatile memory for up to 1,000 test records, and built-in statistical functions (mean, SD, CV%) for QC reporting.
- High-contrast monochrome LCD display with Chinese-language UI: Designed for intuitive operation in domestic food safety laboratories where bilingual technical literacy may vary.
- Pre-calibrated optical path: Fixed-wavelength photometer (525 nm ± 2 nm bandwidth) with dual-beam referencing to compensate for cuvette imperfections and ambient light drift.
- Single-use assay kit compatibility: Each test employs a sealed, lyophilized reagent cartridge with batch-specific calibration curve encoded via QR code—eliminating manual standard preparation and reducing operator error.
Sample Compatibility & Compliance
The GDYQ-5000S accepts only liquid edible oil samples with viscosity ≤ 80 cSt at 25 °C; it is validated for use with refined, semi-refined, and cold-pressed sesame oils, as well as suspected adulterated blends containing soybean, peanut, rapeseed, or cottonseed oil. The assay protocol conforms to the technical framework outlined in GB/T 5009.236–2016 (Determination of Sesamin in Edible Oils by HPLC), though adapted for rapid field deployment. While not certified to ISO/IEC 17025 for accredited testing, its performance meets internal QC requirements for screening per China’s SAMR Guideline on Rapid Screening Methods for Edible Oil Adulteration (No. 2021-08). Data output supports traceability for GLP-aligned documentation when paired with external audit logs.
Software & Data Management
The instrument firmware supports RS-232 serial communication for direct connection to laboratory PCs running Windows-based data aggregation software (supplied separately). Export formats include CSV and PDF reports containing sample ID, timestamp, measured % sesame oil, pass/fail flag relative to user-defined thresholds (e.g., ≥95% for “pure” labeling), and instrument status codes. All measurements are time-stamped and stored with immutable metadata—no post-hoc editing permitted. Audit trail functionality includes operator ID entry (via numeric keypad), session start/end logging, and error event capture (e.g., reagent expiration, photometer timeout), satisfying basic requirements for FDA 21 CFR Part 11–aligned record retention in non-GMP environments.
Applications
- Routine authenticity screening of commercial sesame oil prior to bottling or distribution.
- Regulatory field inspections at wholesale markets and retail outlets under provincial food safety supervision programs.
- Raw material verification at edible oil blending facilities receiving bulk sesame oil shipments.
- Research applications in food fraud studies involving triglyceride profiling and lignan biomarker correlation.
- Training and capacity-building in county-level CDC food safety labs lacking access to HPLC or GC-MS infrastructure.
FAQ
What is the minimum detectable concentration of sesame oil using this instrument?
The lower limit of quantification (LLOQ) is 3.0% (v/v) authentic sesame oil in blended oil matrices.
Can the GDYQ-5000S distinguish between cold-pressed and solvent-extracted sesame oil?
No—it quantifies total sesame-derived lignan equivalents, not processing method. Results reflect compositional authenticity, not production history.
Is external calibration required before each use?
No. Each disposable reagent cartridge contains pre-loaded calibration data; instrument auto-reads QR code upon insertion.
Does the system support multi-user access control?
Not natively. Operator identification is manual numeric entry; role-based permissions require integration with external LIMS.
What maintenance is required for long-term reliability?
Monthly optical path cleaning with lint-free swabs and isopropyl alcohol; annual photometer dark-current verification recommended.
