Polarimeters
High-precision optical instruments engineered to measure the angle of rotation caused by passing polarized light through an optically active substance, essential for chirality and concentration analysis.
Widely Used By
Pharmaceutical Labs Sugar Refineries Chemical Plants Essential Oil Extractors Food & Beverage QC
Key Purposes
Chirality Determination Specific Rotation [α] Purity Validation International Z (Brix) Scale Pharmacopoeia Compliance
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Digital Polarimeters
- High-accuracy digital readout via LED screens.
- Eliminates human error in manual optical reading.
- Instant specific rotation and concentration display.
- Ideal for standard laboratory quality control.
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Automatic Polarimeters
- Fully automated Faraday optical null balancing.
- Ultra-fast measurement cycles under 1 second.
- Automatically measures dark and opaque samples.
- Essential for high-throughput analytical testing.
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Semi-Automatic
- Motorized touch-button optical balancing control.
- High precision offering an excellent cost-to-performance ratio.
- Drastically reduces operator eye strain and fatigue.
- Features clear digital angle output display.
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Manual / Analog
- Classic Vernier scale optical reading mechanism.
- Highly cost-effective for university education & training.
- Utilizes reliable sodium lamp light source (589nm).
- Robust mechanical design requiring minimal maintenance.
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Laboratory Models
- Versatile systems for general scientific research.
- High accuracy for chiral compound synthesis.
- Compatible with multiple observation tube lengths.
- Simple one-point calibration procedures.
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Benchtop Polarimeters
- Stable, heavy-duty fixed-station testing design.
- Rugged housing protects optics in industrial labs.
- Ensures high repeatability for daily sample batches.
- Features direct USB/RS-232 PC integration.
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Portable Polarimeters
- Compact and lightweight for rapid field testing.
- Battery-operated mobility for agricultural on-site use.
- Provides instant optical rotation and concentration checks.
- Supplied with a rugged protective carry case.
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High-Precision
- Unmatched ±0.001° measuring accuracy class.
- Mandatory for strict pharmaceutical regulatory compliance.
- Equipped with superior Glan-Thompson quartz prisms.
- Guarantees drift-free, long-term optical stability.
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Multi-Wavelength
- Integrated LED & Filter matrix (up to 8 wavelengths).
- Ideal for complex optical rotatory dispersion (ORD) studies.
- Eliminates frequent and costly halogen lamp replacements.
- Allows instantaneous software-controlled wavelength switching.
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Research Grade
- Highest optical resolution for advanced scientific institutes.
- Supports deep data analysis and reaction kinetics tracking.
- Unmatched sensitivity for extremely low-rotation samples.
- Fully LIMS/ERP network integration ready.
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Saccharimeters
- Dedicated to the ICUMSA International Sugar Scale (°Z).
- Crucial for sugar mills, refineries, and payment calculation.
- Optimized to read dark, high-throughput raw syrup samples.
- Compatible with modern lead-free clarification methods.
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Pharmaceutical
- Integrated FDA 21 CFR Part 11 compliant software.
- Features multi-level user access and secure audit trails.
- Fully meets strict USP, EP, BP, and JP pharmacopoeia standards.
- Ensures data integrity via secure electronic signatures.
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Food & Beverage
- Validates flavors, natural essential oils, and extracts.
- Rapidly verifies purity and precise product concentration.
- Utilizes easy-to-clean, sanitary stainless steel tubes.
- Designed for fast sample throughput in busy QC labs.
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Chemical Analysis
- Determines specific chirality and active polymerization rates.
- Optics remain robust against highly aggressive chemical samples.
- Ideal for polymer, resin, and specialty chemical manufacturing.
- Features a high dynamic measurement range for varied concentrations.
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Peltier Controlled
- Built-in solid-state thermal stabilization (10°C - 50°C).
- Eliminates messy and space-consuming external water baths.
- Ensures highly reproducible optical rotation regardless of ambient temp.
- Rapid automated heating and cooling cycles.
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PC-Integrated
- Full instrument control and configuration via external PC.
- Enables advanced real-time data charting and visualization.
- Allows custom testing method creation and protocol saving.
- Unlimited digital data storage and custom PDF reporting.
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Enterprise Polarimetry Testing Protocol
Optical rotation is a fundamental property of chiral compounds. Our polarimeters utilize high-intensity LED light sources, Glan-Thompson polarizing prisms, and Faraday optical null principles to measure specific rotation with exceptional precision. From standard sugar refining to stringent pharmaceutical quality control, these instruments guarantee reproducible data conforming to international standards.
Measurement Principle
Measures the angle of rotation (Optical Rotation) when linearly polarized light passes through an optically active sample. Automatic models use a Faraday magneto-optic modulator for rapid, frictionless optical null balancing.
Optical Rotation (°OR)
Specific Rotation [α]
Advanced Optical System
Utilizes ultra-long-life LED light sources (up to 100,000 hours) coupled with narrow-band interference filters (589.3nm, 546nm, 365nm) and high-extinction-ratio Glan-Thompson quartz prisms for maximum light throughput.
LED / Halogen
Multi-Wavelength
Peltier Temperature Control
Optical rotation is highly temperature-dependent. Premium models feature built-in solid-state Peltier thermo-modules to rapidly heat or cool the sample tube cell (10°C to 50°C) without external water baths.
±0.1°C Accuracy
Zero Maintenance