The Bellingham + Stanley® ADP450 Single Wavelength Polarimeter is a high-precision digital polarimeter designed for accurate optical rotation measurements in pharmaceutical, sugar, food, chemical, and academic laboratories. Part of the advanced ADP400 Series, the ADP450 incorporates XPC Peltier temperature control technology, ensuring precise and stable temperature conditions during polarimetric measurements.

Optical rotation measurements are highly sensitive to temperature fluctuations. The ADP450 addresses this challenge through XPC (Xylem Peltier Control) technology, which actively regulates the sample temperature inside the measurement chamber. This ensures temperature stability of ±0.2 °C, enabling highly reliable results and full compliance with pharmacopoeial standards.

The instrument utilizes a maintenance-free yellow LED light source at 589 nm (sodium wavelength) combined with an interference filter and photodiode detector. This optical system enables accurate measurements even for samples with optical density up to 3.0 OD, while eliminating the need for periodic lamp replacement.

The ADP450 is widely used for sugar analysis, chiral compound measurements, pharmaceutical quality control, and stereochemical research, providing laboratories with a powerful and compliant solution for optical rotation analysis.

Key Features

XPC Peltier Temperature Control

• Patented XPC Peltier temperature regulation system
• Maintains stable sample temperature for accurate polarimetry
• Temperature stability: ±0.2 °C
• Eliminates need for external water baths
• Ideal for pharmaceutical laboratories requiring strict temperature control

Advanced Optical Technology

• 589 nm sodium wavelength LED
• Long-life light source (>100,000 hours)
• Interference filter and photodiode detector
• Measures samples up to 3.0 optical density (OD)

High Measurement Precision

• Resolution: up to 0.001° angular rotation
• Accuracy: ±0.010°A
• Reproducibility: ±0.002°A

Flexible Measurement Modes

• Continuous Mode
  • Measures rotation over a defined period
  • Displays stabilized result
  • Useful for monitoring sample stability
• Single-Shot Mode
  • Provides discrete measurement value
  • Ideal for pharmaceutical SOP compliance

Compliance with International Standards

The ADP450 conforms to major pharmacopeial requirements:

• USP – United States Pharmacopeia
• EP – European Pharmacopoeia
• BP – British Pharmacopoeia
• JP – Japanese Pharmacopoeia

Measurements are performed at 589 nm, the standard wavelength for official polarimetric methods.

The system also supports FDA 21 CFR Part 11 and GLP-compliant environments through secure data management and audit trail features.

Measurement Scales and Methods

The ADP450 includes a flexible methods library allowing measurement in:

• Angular Degrees (°A)
• International Sugar Scale (°Z)
• Specific Rotation
• Concentration calculations
• Invert Sugar
• Inversion (A-B)
• User-defined analytical methods

These options make the instrument suitable for sugar laboratories, pharmaceutical analysis, and chemical research.

User Interface and Data Management

HD Display

• 4-inch high-definition colour display
• Clear visualization of results and instrument settings
• User-friendly menu navigation

Data Storage

• Stores over 8,000 measurements
• Records instrument configuration logs
• Supports audit trail functionality

Connectivity

Multiple communication interfaces allow integration with laboratory systems:

• USB
• Ethernet
• RS232 (via USB adapter)

Compatible with:

• Barcode scanners
• Printers
• USB storage devices
• LIMS systems

Data can also be exported as secure PDF reports.

Security and Regulatory Compliance

The ADP450 includes security features suitable for regulated laboratories:

• Password-protected calibration and configuration
• RFID tag user login capability
• Electronic audit trail
• Support for FDA 21 CFR Part 11

These features make the instrument ideal for pharmaceutical quality control laboratories.

Tube Compatibility

The instrument supports standard ICUMSA polarimeter tubes:

• Tube lengths: 10–200 mm
• Available configurations include:

An ADP450-HCl version is also available for use with hydrochloric acid, including a Hastelloy temperature sensor and spill kit.

Included with ADP450 (SKU 37-50)

• ADP450 Polarimeter
• 200 mm glass centre-fill polarimeter tube
• XPC-200 tube adaptor
• Three RFID tags
• Instruction manual
• Certificate of conformity
• Power supply with EU, UK, and US plugs

(CH and Danish plugs available separately)

General Specifications

Temperature Specifications (ADP450)

Applications

The ADP450 polarimeter is commonly used in:

Sugar Industry

• ICUMSA sugar purity testing
• Sucrose concentration measurements
• Invert sugar determination

Pharmaceutical Industry

• Optical purity testing
• Chiral compound analysis
• Pharmacopoeial polarimetry

Food Industry

• Sugar analysis in beverages
• Quality control of sweeteners

Chemical and Academic Research

• Optical activity measurement
• Stereochemical analysis
• Research on chiral molecules

The Bellingham + Stanley ADP450 Single Wavelength Polarimeter is a highly advanced polarimetric instrument that combines precision optics, patented Peltier temperature control, regulatory compliance, and robust data management capabilities. With its maintenance-free LED optical system, temperature stability, and flexible analytical methods, the ADP450 is an ideal solution for laboratories requiring accurate optical rotation measurements in regulated pharmaceutical, food, sugar, and chemical environments.