Drick DRK-Z830D Digital Enhanced Temperature-Controlled Automatic Polarimeter
| Brand | Drick |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | DRK-Z830D |
| Price Range | USD 11,200 – 14,000 (FOB China) |
| Instrument Type | Automatic Polarimeter |
| Temperature Control | Yes, Peltier-regulated |
| Display | Digital LCD |
| Light Source | High-Stability LED (589.3 nm equivalent) |
| Measurement Range | Optical Rotation ±90° |
| Accuracy | ±0.002° (at 20 °C, sodium D-line equivalent) |
Overview
The Drick DRK-Z830D Digital Enhanced Temperature-Controlled Automatic Polarimeter is an engineered solution for precise, repeatable measurement of optical rotation in optically active substances—primarily used in pharmaceutical quality control, fine chemical synthesis validation, food & beverage sugar content analysis, and academic research on chiral molecules. Based on the fundamental principle of polarimetry—measuring the angular deviation of plane-polarized light as it passes through a chiral medium—the DRK-Z830D employs a dual-beam optical architecture with real-time photodiode feedback to minimize drift and enhance signal stability. Its integrated Peltier-based temperature regulation system maintains sample cell temperature within ±0.1 °C across the 10–40 °C operating range, directly addressing one of the most critical variables affecting optical rotation reproducibility per ISO 7500-1 and USP . The instrument conforms to the physical definition of specific rotation [α] as defined in IUPAC Compendium of Chemical Terminology and supports direct calculation of concentration from observed rotation using built-in calibration algorithms.
Key Features
- High-precision angular detection with ±0.002° accuracy at 20 °C, traceable to NIST-traceable quartz standards
- LED light source emitting at 589.3 nm (sodium D-line equivalent), delivering >10,000 hours of stable output without spectral drift or warm-up delay
- Automated zero-point calibration and dynamic background compensation to eliminate mechanical hysteresis and thermal lensing artifacts
- Integrated Peltier thermoregulation module with programmable ramping and hold profiles—enabling standardized testing per ASTM E1252 and Ph. Eur. 2.2.7
- Digital LCD interface with intuitive menu navigation, English-language firmware, and real-time display of rotation, temperature, and status flags
- Robust aluminum alloy optical housing with anti-vibration damping mounts and sealed optical path to ensure long-term alignment stability
Sample Compatibility & Compliance
The DRK-Z830D accommodates standard 100 mm and 200 mm path-length glass cells (supplied with O-ring seals), supporting aqueous, alcoholic, and low-viscosity organic solutions. It is compatible with both single- and multi-component chiral systems—including APIs (e.g., levodopa, ibuprofen enantiomers), natural extracts (e.g., essential oils, honey), and carbohydrate solutions (e.g., sucrose, fructose, glucose). All measurement protocols align with pharmacopoeial requirements: USP , EP 2.2.7, and JP 6.05. Data integrity complies with ALCOA+ principles; audit trail functionality (via optional PC software) meets FDA 21 CFR Part 11 expectations for electronic records in regulated environments. The device carries CE marking per Directive 2014/30/EU (EMC) and 2014/35/EU (LVD).
Software & Data Management
The DRK-Z830D supports RS-232 and USB virtual COM port communication for bidirectional data exchange. Optional PolarSoft v3.2 application (Windows 10/11 compatible) enables method storage, batch reporting, statistical process control (SPC) charting, and export to CSV, PDF, or LIMS-compatible XML formats. Software features include user-level access control (admin/operator modes), electronic signature capability, and full audit trail logging—including timestamped entries for calibration events, parameter changes, and result modifications. Raw data files retain metadata (temperature, wavelength assumption, cell ID, operator ID), ensuring full traceability required under GLP and GMP frameworks.
Applications
- Pharmaceutical QC: Enantiomeric purity verification of chiral active ingredients per ICH Q5C guidelines
- F&B Industry: Sucrose concentration determination in syrups, juices, and invert sugar solutions per AOAC 951.02
- Academic Research: Kinetic monitoring of asymmetric reactions (e.g., enzymatic hydrolysis, chiral resolution)
- Essential Oil Authentication: Detection of adulteration via deviation from reference-specific rotation values
- Biopolymer Characterization: Assessment of conformational changes in polysaccharides under thermal or pH stress
FAQ
What temperature range does the Peltier system support?
The integrated thermoregulation module operates from 10 °C to 40 °C, with setpoint accuracy of ±0.1 °C and stabilization time <3 minutes (100 mm cell, water bath mode).
Is the LED source compliant with pharmacopoeial wavelength requirements?
Yes—the narrow-band LED emits at 589.3 nm (FWHM <2 nm), meeting the spectral equivalence criteria defined in USP for sodium D-line substitution.
Can the instrument be validated for GMP use?
Yes. IQ/OQ documentation templates are available upon request. The system supports calibration with certified quartz control plates (NIST-traceable), and all firmware revisions are version-controlled and change-logged.
Does the DRK-Z830D support automatic cell recognition or barcode scanning?
No. Cell identification is manual via operator input; however, cell-specific correction factors can be stored per method in PolarSoft.
What is the warranty coverage and service response commitment?
Standard warranty: 24 months parts-and-labor. Technical support responds within 1 hour to written inquiries; on-site service dispatch is arranged within 48 business hours for qualified international customers.
