Drick DRK-Z890 Digital Enhanced Automatic Temperature-Controlled Polarimeter
| Brand | Drick |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DRK-Z890 |
| Price Range | USD 11,200 – 14,000 (FOB) |
| Instrument Type | Automatic Polarimeter |
| Temperature Control | Yes, Peltier-based thermostatic control |
| Display | High-resolution digital LCD |
| Light Source | Stable 589.3 nm LED (sodium D-line equivalent) |
| Optical Rotation Range | ±90° |
| Sucrose Scale Range | ±259°Z |
| Accuracy | ±0.002° |
| Repeatability | ≤ ±0.001° |
| Minimum Resolution | 0.0001° |
| Sample Tube Compatibility | Standard 100 mm and 200 mm pathlength cells (optional 50 mm) |
Overview
The Drick DRK-Z890 Digital Enhanced Automatic Temperature-Controlled Polarimeter is an advanced optical instrument engineered for high-precision measurement of optical rotation in chiral substances—primarily used in pharmaceutical quality control, fine chemical synthesis validation, food & beverage sugar content analysis, and academic research on molecular asymmetry. Based on the fundamental principle of polarimetry—where plane-polarized light rotates upon passage through optically active media—the DRK-Z890 employs a solid-state 589.3 nm LED light source calibrated to match the sodium D-line spectral output, ensuring metrological consistency with international reference standards (e.g., USP , Ph. Eur. 2.2.7, and ISO 5725). Its integrated Peltier temperature control system maintains sample cell temperature within ±0.1°C across a range of 15–40°C, eliminating thermal drift and enabling thermally stabilized measurements critical for regulatory compliance and method reproducibility.
Key Features
- High-accuracy angular detection with ±0.002° absolute accuracy and ≤±0.001° repeatability—validated per ISO/IEC 17025 traceable calibration protocols.
- Digital enhancement architecture featuring real-time signal filtering, auto-zero compensation, and dynamic baseline correction to suppress ambient vibration and electrical noise.
- Integrated Peltier-controlled thermostat with programmable setpoint, ramp rate, and hold duration—supporting GLP-compliant temperature-stabilized assays.
- LED light source offering >10,000-hour operational lifetime, zero warm-up delay, and immunity to spectral drift—eliminating mercury lamp maintenance and safety hazards.
- Multi-scale display interface showing optical rotation (°), specific rotation ([α]), and sucrose concentration (°Z) simultaneously—configurable via front-panel navigation or PC software.
- Rugged aluminum alloy chassis with anti-vibration base and precision-machined optical rail—designed for long-term stability in QC laboratories and production environments.
Sample Compatibility & Compliance
The DRK-Z890 accommodates standard 100 mm and 200 mm pathlength sample tubes (10 mm inner diameter), with optional 50 mm micro-cells for limited-volume samples (≥0.8 mL). It supports aqueous, alcoholic, and low-viscosity organic solvent systems commonly used in API characterization and syrup analysis. The instrument complies with key regulatory frameworks including FDA 21 CFR Part 11 (audit trail, electronic signature, and data integrity modules available via optional software license), USP general chapter “Optical Rotation”, and ISO 13485-aligned manufacturing controls. All factory calibrations are performed using NIST-traceable quartz rotatory standards and certified sucrose solutions.
Software & Data Management
The optional DRK-PolarSoft v3.2 application provides full remote control, automated sequence execution, and compliant data handling. Features include customizable test templates, automatic pass/fail evaluation against user-defined specification limits, CSV/PDF report generation with embedded metadata (operator ID, timestamp, environmental conditions), and secure database archiving. Audit trail functionality records all parameter changes, measurement events, and user logins with immutable timestamps—fully supporting GMP/GLP documentation requirements. Data export is compatible with LIMS integration via ODBC and ASTM E1384-compliant file structures.
Applications
- Pharmaceutical QC: Verification of enantiomeric purity for chiral drugs (e.g., ibuprofen, levodopa, escitalopram) per ICH Q5C and USP monographs.
- Sugar Industry: Direct °Z determination in cane juice, beet extract, and refined syrups without hydrolysis—aligned with ICUMSA Method GS4/3-15.
- Academic Research: Kinetic studies of enzymatic racemization, asymmetric catalysis monitoring, and polymer helicity characterization.
- Food & Beverage: Authenticity testing of honey, maple syrup, and fruit concentrates via optical rotation deviation analysis.
- Chemical Manufacturing: In-process verification of chiral intermediate synthesis yield and stereochemical fidelity.
FAQ
What temperature range does the Peltier system support?
The DRK-Z890 operates from 15°C to 40°C in 0.1°C increments, with stabilization time <3 minutes at ±0.1°C tolerance.
Is the LED light source replaceable by the user?
No—LED module is factory-aligned and sealed; replacement requires recalibration and must be performed by authorized service personnel.
Does the instrument meet FDA 21 CFR Part 11 requirements?
Yes, when configured with DRK-PolarSoft v3.2 and enabled audit trail, electronic signature, and role-based access control modules.
Can it measure samples with turbidity or particulates?
Only clear, particle-free solutions are suitable; suspended solids cause scattering errors and must be filtered (0.45 µm) prior to analysis.
What calibration standards are supplied with the instrument?
Each unit ships with a NIST-traceable quartz control plate (±0.05°, ±5°, ±30°) and a certified 10% w/w sucrose solution for dual-mode verification.
