Perten LactoScope 300™ FT-IR Dairy Analyzer

Overview

The Perten LactoScope 300™ FT-IR Dairy Analyzer is a benchtop mid-infrared spectrometer engineered for rapid, non-destructive quantification of major compositional parameters in liquid dairy matrices. Based on Fourier Transform Infrared (FT-IR) spectroscopy, the system measures characteristic absorption bands across the 900–5000 cm⁻¹ spectral range to determine fat, protein, lactose, total solids, and somatic cell count (SCC) equivalents—without reagents or sample preparation. Its core optical architecture features Perten’s patented Dynascan™ dynamic interferometer, which maintains optical alignment under mechanical perturbation (e.g., transport, vibration, or minor tilt), ensuring long-term calibration stability and eliminating routine realignment requirements. Designed for high-volume operational environments—including milk collection centers, cooperative dairies, and industrial processing lines—the LactoScope 300 delivers full compositional results in under 45 seconds per sample, supporting throughput of up to 80 samples per hour with minimal operator intervention.

Key Features

• Patented Dynascan™ interferometer delivering robust optical performance and sustained calibration integrity across variable site conditions.
• Semi-automated sample handling with integrated temperature-controlled cuvette holder (±0.1 °C) to minimize thermal drift during sequential analysis.
• Pre-loaded, matrix-specific calibration modules compliant with ISO 9622:2013 (IDF 141:2013) for raw cow, goat, sheep, and camel milk; cream; whey; UHT and pasteurized milk; and flavored dairy beverages.
• ResultsPlus™ software interface built on Windows 10, featuring guided workflow navigation, role-based user access control (administrator, analyst, supervisor), and configurable pass/fail limits aligned with internal QC protocols.
• Real-time spectral diagnostics including signal-to-noise ratio (SNR) monitoring, water vapor absorption flagging, and baseline deviation alerts to ensure data validity prior to result release.

Sample Compatibility & Compliance

The LactoScope 300 is validated for direct analysis of unfiltered, homogenized liquid dairy samples within defined viscosity and particulate thresholds. Compatible matrices include raw bovine, caprine, ovine, and camelid milk; standardized and high-fat cream; sweet and acid whey; ultra-high-temperature (UHT) and HTST pasteurized milk; fortified and flavored dairy drinks; and recombined milk products. All calibrations are developed and verified in accordance with ISO 9622:2013 (Milk — Determination of fat, protein, lactose, total solids and added water — Guideline for instrumental methods using mid-infrared spectroscopy) and AOAC Official Method 972.16. Instrument compliance documentation supports GLP and GMP-aligned laboratory operations, including audit-ready calibration logs, version-controlled model updates, and electronic signature capability per FDA 21 CFR Part 11 when deployed with NetPlus Remote licensing.

Software & Data Management

Data acquisition, processing, and reporting are managed through ResultsPlus™—a SQL Server-based application enabling structured database management, automated backup scheduling, and cross-platform export (CSV, PDF, XML). The system supports seamless integration with Laboratory Information Management Systems (LIMS) via ODBC and HL7 interfaces. Cloud-enabled NetPlus Reporting provides secure web-based access to historical results, trend charts, and statistical process control (SPC) dashboards. NetPlus Remote (optional add-on) facilitates remote instrument configuration, spectral model deployment, inter-site calibration harmonization, and performance verification against reference lab results—critical for multi-location dairy processors maintaining consistent analytical standards across geographically dispersed facilities.

Applications

• On-farm and collection center milk payment testing based on fat, protein, and lactose content.
• In-process quality control during standardization, separation, and homogenization stages in dairy plants.
• Raw material verification for incoming whey powder, skim milk powder, and cream shipments.
• Regulatory compliance testing for national dairy standards (e.g., China GB 19301, EU Regulation (EC) No 1234/2007, US Grade A Pasteurized Milk Ordinance).
• Research applications requiring high-throughput screening of novel dairy formulations, fermentation kinetics, or adulteration detection (e.g., water dilution, urea addition, vegetable oil blending).

FAQ

What spectral resolution and wavenumber accuracy does the LactoScope 300 achieve?

The system operates at 4 cm⁻¹ nominal resolution with certified wavenumber accuracy of ±0.2 cm⁻¹ across the measurement range, traceable to NIST SRM 1921b.
Can calibration models be transferred between instruments?

Yes—calibration transfer is supported via NetPlus Remote using proprietary spectral matching algorithms and instrument-specific correction vectors, minimizing inter-unit bias.
Is the system compatible with third-party LIMS platforms?

It supports ODBC, HL7 v2.x, and custom API integrations; implementation requires validation per ISO/IEC 17025:2017 Clause 5.9.
How often is recalibration required under routine operation?

Factory calibrations remain stable for ≥12 months under controlled environmental conditions (20–25 °C, <60% RH); quarterly verification using certified reference materials is recommended.
Does the software support multi-language operation beyond Chinese?

ResultsPlus™ includes embedded English, Spanish, French, Russian, and Arabic language packs; additional localization requires Perten technical support engagement.