Drick DRK-Z810L Fully Automated Digital Polarimeter with Touchscreen Control and Real-Time Timed Measurement
| Brand | Drick |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | DRK-Z810L |
| Product Category | Automatic Polarimeter |
| Temperature Control | Yes |
| Digital Display | Yes |
| Light Source | LED |
| Measurement Range | Optical Rotation ±90°, Sucrose Scale ±259°Z |
| Accuracy | ±0.004° |
Overview
The Drick DRK-Z810L Fully Automated Digital Polarimeter is an advanced optical measurement instrument engineered for high-precision determination of optical rotation in optically active substances. Based on the fundamental principle of polarimetry—measuring the angular deviation of plane-polarized light as it passes through chiral media—the DRK-Z810L delivers traceable, repeatable results essential for quality control and R&D in regulated environments. Its core architecture integrates a stable monochromatic LED light source (589.3 nm equivalent), precision-calibrated half-shade field optics, and a high-resolution rotary encoder system to resolve angular displacements down to 0.001°. Designed for compliance-critical workflows, the instrument supports temperature-stabilized measurements via integrated Peltier-based thermal regulation (±0.1 °C stability over 25–40 °C range), minimizing thermal drift and ensuring metrological integrity across extended assay sequences.
Key Features
- Fully automated operation with intuitive 7-inch capacitive touchscreen interface supporting multi-language UI (English, Chinese, Spanish)
- Real-time timed measurement mode: programmable sampling intervals from 1 s to 3600 s with synchronized timestamping and auto-data logging
- Integrated temperature-controlled sample chamber with adjustable setpoint (25–40 °C) and real-time thermal feedback loop
- LED light source offering >10,000-hour operational lifetime, spectral stability, and no warm-up delay
- Dual-scale display: simultaneous readout of optical rotation (°) and sucrose concentration (°Z) with automatic conversion per ICUMSA and AOAC standards
- Robust mechanical design compliant with IEC 61000-6-2/6-3 for electromagnetic compatibility and ISO 14644-1 Class 8 cleanroom suitability
Sample Compatibility & Compliance
The DRK-Z810L accommodates standard 100 mm and 200 mm path-length glass cells (including jacketed thermostatted cells), as well as custom cell configurations up to 300 mm. It is routinely deployed in laboratories adhering to USP <788>, EP 2.2.7, and JP 6.07 for pharmaceutical active ingredient characterization; AOAC Official Methods 955.15 and 963.16 for sugar analysis in food matrices; and ISO 5725-2 for method precision validation. Instrument qualification documentation (IQ/OQ/PQ protocols) is provided, and audit trails—including user login, parameter changes, calibration events, and raw measurement records—are stored locally with tamper-evident timestamps, supporting GLP and GMP alignment per FDA 21 CFR Part 11 requirements when paired with optional network-enabled data export modules.
Software & Data Management
The embedded firmware includes a built-in data manager supporting CSV and PDF report generation with configurable metadata fields (operator ID, sample ID, batch number, environmental conditions). Optional PC software (Drick PolarSoft v3.2) enables advanced statistical analysis (mean, SD, RSD, trend charts), method storage (up to 100 user-defined protocols), and LIMS integration via ASTM E1384-compliant HL7 or direct SQL database push. All raw angular displacement values are retained at full sensor resolution (0.0001°), enabling retrospective reprocessing without loss of fidelity. Calibration certificates traceable to NIM (National Institute of Metrology, China) and NIST SRM 1782 are supplied with each unit.
Applications
- Pharmaceutical QC: enantiomeric purity assessment of chiral APIs (e.g., ibuprofen, levodopa, escitalopram)
- Food & Beverage: sucrose, fructose, and glucose quantification in syrups, juices, honey, and confectionery per ICUMSA methods
- Chemical manufacturing: monitoring asymmetric synthesis reactions and catalyst performance
- Academic research: kinetic studies of mutarotation in carbohydrates and stereochemical investigations in natural product isolation
- Biotechnology: verification of optical activity in recombinant proteins and oligonucleotide therapeutics
- Regulatory testing labs: accredited testing per CNAS-CL01 (ISO/IEC 17025) for food safety and pharmacopoeial compliance
FAQ
What is the wavelength of the LED light source, and is it compliant with pharmacopoeial requirements?
The DRK-Z810L uses a narrow-band LED centered at 589.3 nm (equivalent to the sodium D-line), meeting the spectral specification required by USP <788>, EP 2.2.7, and JP 6.07 for polarimetric assays.
Does the instrument support external temperature control via circulating water bath?
Yes—while the internal Peltier system provides rapid stabilization, the cell holder features standard 6-mm inlet/outlet ports compatible with external thermostatic circulators for ultra-low-drift applications.
Can measurement data be exported directly to Excel or LIMS without proprietary software?
Raw data exports as UTF-8 CSV with tab-delimited columns; metadata headers conform to ASTM E1384 Annex A1, enabling direct ingestion into most LIMS and spreadsheet platforms without intermediate conversion.
Is the ±0.004° accuracy specification validated under ISO 5725-2 repeatability conditions?
Yes—accuracy is verified using NIM-certified quartz rotatory standards (±0.002° uncertainty) across five independent runs at 20 °C, 50 % RH, per ISO 5725-2:2019 Annex B protocol.
What calibration standards are included with the instrument?
Each unit ships with two NIM-traceable quartz control plates (±5° and ±30°), a certificate of calibration, and a blank cell verification protocol document.
