puriFlash® XS 520 Plus Preparative Liquid Chromatography System

Overview

The puriFlash® XS 520 Plus is a compact, high-performance preparative liquid chromatography (PLC) system engineered for rapid, reliable, and scalable purification of organic compounds, natural products, peptides, and synthetic intermediates in research and process development laboratories. Based on medium-pressure flash chromatography principles—operating at up to 20 bar—it bridges the gap between traditional low-pressure gravity/column systems and high-pressure preparative HPLC, delivering superior resolution and throughput without requiring ultra-high-pressure infrastructure. Its modular architecture integrates a dual-piston solvent delivery pump, intelligent fraction collector, UV/Vis detection (200–400 nm), and intuitive touch-screen interface—all housed in a footprint under 60 cm wide. Designed for walk-away operation, the system supports gradient elution, method storage, and real-time chromatogram monitoring, making it suitable for both novice users and experienced separation scientists.

Key Features

• Robust dual-piston pump capable of precise flow control from 1 to 300 mL/min with ≤1% RSD across the full range
• Maximum operating pressure of 20 bar—optimized for silica, reversed-phase C18, amino, cyano, and specialized stationary phases (e.g., NH₂, Diol)
• Integrated UV/Vis detector with fixed-wavelength (254 nm & 220 nm) or optional variable-wavelength capability (200–400 nm), featuring 10 mm pathlength flow cell and 0.001 AU resolution
• Automated fraction collector with 120-position rack compatibility (standard 15–50 mL tubes or custom vial formats), programmable by time, volume, or peak threshold
• Intuitive 7-inch color touchscreen interface running puriFlash® Method Studio software—enabling method creation, sequence definition, and real-time data visualization without external PC dependency
• Chemically resistant fluidic path (PEEK, stainless steel, sapphire components) compatible with common organic solvents (DCM, EtOAc, MeOH, ACN, THF) and mild aqueous buffers

Sample Compatibility & Compliance

The puriFlash® XS 520 Plus accommodates sample loads ranging from sub-milligram to multi-gram scale, supporting standard cartridge columns (10 g–340 g), glass columns (up to 40 mm i.d.), and custom-packed beds. It complies with ISO 9001-certified manufacturing standards and meets essential CE marking requirements for laboratory instrumentation. While not classified as GMP-compliant out-of-the-box, the system supports audit-ready operation when paired with optional electronic logbook modules and user-access controls—facilitating alignment with GLP documentation practices and internal SOPs. All firmware and method files are timestamped and exportable in CSV/PDF format for traceability, consistent with basic regulatory expectations for analytical and preparative workflows in pharmaceutical discovery and academic synthesis labs.

Software & Data Management

Method Studio software provides embedded method development tools including gradient optimization wizards, retention time prediction algorithms (based on solvent strength models), and automatic fraction triggering logic. Raw chromatographic data (absorbance vs. time/volume) is stored locally in proprietary .pfs format and exportable to open formats (CSV, ASCII) for integration with LIMS or third-party analysis platforms. The system logs all operational events—including pump pressure, flow deviation, UV lamp status, and fraction collection triggers—with date/time stamps. Optional network connectivity enables remote monitoring via Ethernet; however, no cloud-based data storage or FDA 21 CFR Part 11-compliant electronic signatures are natively supported without supplementary validation packages.

Applications

• Purification of reaction mixtures following cross-coupling, esterification, or amide bond formation
• Isolation of natural product fractions from crude plant extracts or fermentation broths
• Desalting and buffer exchange of synthetic peptides prior to lyophilization or bioassay
• Removal of catalyst residues (e.g., Pd, Ru) from transition-metal-mediated syntheses
• Parallel purification of compound libraries in medicinal chemistry lead optimization campaigns
• Preparative-scale separation of diastereomers using chiral or polar-embedded stationary phases

FAQ

What column formats are compatible with the puriFlash® XS 520 Plus?

Standard prepacked cartridges (Interchim® puriFlash® series, 10 g to 340 g), reusable glass columns (15–40 mm i.d.), and custom stainless-steel or PEEK columns up to 500 mm length.
Can the system perform gradient elution?

Yes—it supports binary gradient programming with linear, step, or custom profiles, adjustable in 1% increments over 0–100% B solvent.
Is method transfer possible from analytical HPLC to this system?

Scalable method transfer is feasible using constant linear velocity or constant k’ principles; recommended scaling factors range from 10× to 50× based on column geometry and flow rate adjustment.
What maintenance is required for long-term reliability?

Routine maintenance includes monthly pump seal inspection, quarterly UV lamp intensity verification, and annual calibration of flow and pressure sensors per manufacturer guidelines.
Does the system support automated fraction pooling based on peak shape?

Yes—fraction collection can be triggered by threshold absorbance, peak apex, or user-defined retention time windows, with post-run pooling enabled via exported CSV data.