Schmidt+Haensh Sugar Purity Analyzer (Saccharomat® M-Series with Integrated DUR Refractometer Head)

Overview

The Schmidt+Haensch Sugar Purity Analyzer is a dual-mode analytical instrument engineered for the precise, simultaneous determination of optical rotation (°Z) and refractive index (Brix) in sugar solutions—specifically designed for quality assurance in cane and beet sugar processing. It integrates a high-stability polarimeter (Saccharomat® M-Series platform) with the DUR (Differential Universal Refractometer) measurement head via a rigid optical coupling interface, enabling concurrent acquisition of both parameters from a single sample aliquot without manual transfer or recalibration. This architecture eliminates inter-instrument variability and reduces analysis time by >40% compared to sequential standalone measurements. The system operates on the fundamental principles of polarimetry—measuring the angular rotation of plane-polarized light induced by chiral molecules such as sucrose—and refractometry—quantifying the deviation of light at the solution–air interface to infer solute concentration. Its mechanical design incorporates temperature-stabilized optical paths, zero-drift quartz polarizing elements, and motorized precision goniometers calibrated traceably to NIST-certified sucrose standards.

Key Features

• Integrated dual-sensor architecture: Co-aligned Saccharomat® M-Series polarimeter and DUR refractometer head ensure spatial and temporal synchronization of °Z and Brix readings.
• High-resolution angular detection: Motorized encoder-based rotation stage with 0.001° resolution and closed-loop feedback control.
• Thermal management options: Peltier-controlled sample cells (±0.02°C stability) available for M-Series configurations to minimize thermal drift during extended batch analysis.
• Modular optical path: Interchangeable measurement cells (20 mm, 100 mm, 200 mm path lengths) constructed from borosilicate glass or sapphire for corrosive or high-temperature applications.
• Automated calibration routines: Onboard validation using certified sucrose reference standards (e.g., 26°Z / 10.0 Brix) with real-time deviation logging per ASTM E1258 Section 7.3.
• Rugged industrial enclosure: IP54-rated housing suitable for factory-floor deployment near crystallization centrifuges or evaporation stations.

Sample Compatibility & Compliance

The analyzer accommodates aqueous sugar solutions across the full industrial range (0–95°Z; 0–85 Brix), including raw juice, thin juice, thick juice, molasses, and refined syrup. It supports viscous samples up to 500 mPa·s via optional low-shear flow cells. All hardware and firmware comply with ISO/IEC 17025:2017 requirements for testing laboratories, and data integrity features—including electronic signatures, immutable audit trails, and user-access tiering—meet FDA 21 CFR Part 11 and EU Annex 11 expectations. Method validation documentation aligns with USP (Polarimetry) and EN 13479 (Refractometry for Sugar Solutions). Routine operation satisfies GLP and GMP quality systems when paired with S+H’s validated SOP templates.

Software & Data Management

Control and reporting are managed through PolaSoft™ v5.2, a Windows-based application supporting multi-user environments. The software provides real-time overlay of °Z vs. Brix scatter plots, automatic purity calculation (Purity % = [°Z_measured / °Z_theoretical] × 100), and batch-level statistical summaries (mean, SD, RSD, trend charts). Raw data files (.pola) are stored in HDF5 format with embedded metadata (operator ID, timestamp, instrument serial, calibration certificate ID). Export options include CSV, PDF reports compliant with ISO 10012, and direct integration into LIMS via OPC UA or ODBC drivers. Audit trail logs record all parameter changes, result modifications, and user logins with tamper-proof timestamps.

Applications

• Sugar refining: Real-time purity monitoring during carbonatation, sulfitation, and crystallization stages to optimize yield and reduce rework.
• Beet/cane processing plants: In-line verification of juice purity pre-evaporation and post-defecation per ICUMSA Method GS4/3-14.
• Pharmaceutical excipient QC: Sucrose and lactose purity assessment against EP 2.2.7 and USP .
• Food ingredient certification: Verification of declared Brix and optical rotation in syrups, honey, and fruit concentrates per Codex Alimentarius STAN 212-1999.
• Research laboratories: Kinetic studies of enzymatic hydrolysis (e.g., invertase activity) via time-resolved °Z decay curves.

FAQ

What standards does the Sugar Purity Analyzer validate against?
It supports method compliance with ASTM E1258 (Standard Test Method for Determination of Optical Rotation), ISO 5725 (Accuracy of measurement methods), USP , and ICUMSA GS4/3-14 for sugar industry applications.
Can the system operate unattended for overnight batch analysis?
Yes—the M-Series platform includes programmable autosampler compatibility (up to 48 positions) and watchdog-triggered error recovery, enabling unattended operation under validated SOPs.
Is temperature compensation applied automatically during Brix measurement?
Yes—refractive index values are corrected in real time using built-in Pt100 sensor feedback and the IAPWS-formulated water dispersion model, referenced to 20°C.
How frequently must the DUR head be recalibrated?
Under routine use (≤8 h/day), annual calibration with NIST-traceable sucrose standards is sufficient; calibration status is verified daily via internal air/water reference checks.
Does the system support 21 CFR Part 11-compliant electronic records?
Yes—PolaSoft™ v5.2 implements role-based access control, biometric or PKI login options, electronic signatures, and immutable audit trails meeting FDA and EMA regulatory expectations.