JB5500-L Wet-Dispersion Laser Particle Size Analyzer by Jiubin Instruments

Overview

The JB5500-L Wet-Dispersion Laser Particle Size Analyzer is an automated optical instrument engineered for high-precision particle size distribution (PSD) characterization of suspensions and colloidal dispersions. It operates on the principle of Mie scattering theory, utilizing a dual-laser optical system (typically 638 nm red laser and optional 405 nm blue laser) to detect angular intensity patterns of scattered light across a wide detection angle range (e.g., 0.02°–175°). The system reconstructs particle size distributions via inverse Laplace transformation and non-negative least squares (NNLS) algorithms, delivering volume-based, surface-area-based, and number-based distributions in accordance with ISO 13320:2020. Designed for routine QC/QA laboratories and R&D environments, the JB5500-L integrates fully automated sample handling—including peristaltic pumping, ultrasonic dispersion, stirring control, and auto-flushing—minimizing operator intervention and ensuring measurement consistency across shifts and operators.

Key Features

• Fully automated wet dispersion workflow: integrated ultrasonic bath (up to 100 W, 0–100% adjustable power), magnetic stirrer (0–4000 rpm), peristaltic circulation pump (flow rate 0–5000 mL/min), and programmable auto-cleaning cycle
• High-sensitivity optical bench with dual-detector array: 103-channel silicon photodiode detector for forward-scattered light and multi-element backscatter sensor for enhanced sub-micron resolution
• Real-time refractive index compensation: supports user-defined complex refractive index inputs (real and imaginary components) for accurate modeling of diverse materials including polymers, metal oxides, pharmaceutical actives, and biological particles
• Robust architecture with sealed optical path and temperature-stabilized laser module (±0.1 °C), enabling stable operation under ambient lab conditions (15–30 °C, <70% RH)
• Compliance-ready design: audit trail logging, electronic signature support, and configurable user access levels aligned with FDA 21 CFR Part 11 and GLP/GMP documentation requirements

Sample Compatibility & Compliance

The JB5500-L is optimized for aqueous and organic liquid dispersions (e.g., water, ethanol, isopropanol, xylene) with solid loadings ranging from 0.001% to 50% w/v, depending on particle density and optical contrast. It accommodates standard 100–500 mL sample cells and supports optional flow-through cuvettes for inline process monitoring integration. All measurement protocols adhere to international standards including ISO 13320 (laser diffraction), ISO 22412 (dynamic light scattering reference for validation), ASTM D4291 (standard test method for particle size distribution of pigments), and USP (light scattering methods for pharmaceutical particle sizing). Instrument qualification documentation (IQ/OQ/PQ templates) and traceable calibration reports using NIST-traceable polystyrene latex (PSL) standards (e.g., 100 nm, 500 nm, 3.0 µm) are provided.

Software & Data Management

The JB5500-L is operated via Jiubin’s proprietary ParticleSolve™ v4.2 software, a Windows-based application supporting multilingual UI (English, German, Japanese, Chinese). The software enables method-driven operation with customizable SOPs, batch processing of up to 99 samples per run, and automatic report generation in PDF, CSV, and XML formats. Data integrity features include time-stamped raw scatter data archiving, version-controlled method files, and encrypted database storage compliant with 21 CFR Part 11 Annex 11 requirements. Exported datasets are compatible with third-party statistical platforms (e.g., JMP, MATLAB, Python pandas) for advanced multivariate analysis, trend monitoring, and SPC charting. Remote diagnostics and firmware updates are supported via secure HTTPS connection.

Applications

The JB5500-L serves critical quality control and formulation development functions across multiple regulated and industrial sectors. In pharmaceutical manufacturing, it characterizes active pharmaceutical ingredient (API) micronization efficiency, excipient uniformity, and suspension stability per ICH Q5A and Q5C guidelines. In battery materials R&D, it quantifies cathode/anode powder agglomeration behavior and slurry homogeneity prior to coating. In catalyst production, it monitors pore structure proxies via PSD-derived surface area estimates. Additional use cases include ceramic slurries (tape casting), inkjet inks (nozzle clogging prediction), food emulsions (creaming stability), and environmental sediment analysis (grain-size classification per USDA texture triangle). Its sub-micron capability (<0.5 µm resolution at 0.1 µm D10) makes it suitable for nanomaterial safety assessment workflows.

FAQ

What dispersion media are compatible with the JB5500-L?
Deionized water, ethanol, isopropanol, acetone, toluene, xylene, and other low-viscosity solvents with known refractive index and viscosity values can be used. Viscosity should remain below 20 mPa·s for optimal hydrodynamic dispersion.
Does the system support dry powder measurement?
No—the JB5500-L is configured exclusively for wet dispersion. For dry powder analysis, Jiubin offers the complementary JB5500-D series with aerodynamic dispersion module.
How is instrument performance verified between calibrations?
Daily verification uses certified PSL reference standards; drift tolerance is set at ±2% for D50 value over 24 hours. Full calibration is recommended every 6 months or after optical component replacement.
Can the software generate GMP-compliant audit trails?
Yes—ParticleSolve™ logs all user actions, parameter changes, and result exports with immutable timestamps and operator IDs. Audit trail reports are exportable as PDF with digital signature fields.
Is remote software support available outside business hours?
Jiubin provides 24/7 remote diagnostic access for authorized service contracts, including real-time screen sharing, log file analysis, and firmware patch deployment within SLA-defined response windows.