YMC K-Prep EX Explosion-Proof Preparative Liquid Chromatography System

Overview

The YMC K-Prep EX Explosion-Proof Preparative Liquid Chromatography System is an industrial-grade, medium-to-low pressure chromatographic platform engineered for safe, scalable purification of active pharmaceutical ingredients (APIs), fine chemicals, and high-value intermediates in classified hazardous environments. Built upon YMC’s decades of expertise in preparative chromatography and regulatory-aligned system design, the K-Prep EX integrates intrinsic safety principles at the mechanical, electrical, and software levels. Its core separation principle relies on liquid-phase partitioning under controlled flow and gradient elution conditions, enabling reproducible isolation of compounds across gram-to-kilogram quantities. Unlike standard laboratory-scale systems, the K-Prep EX series is certified for operation in Zone 1/Zone 2 (IEC 60079-0) or Class I Division 1 (NFPA 496) environments—making it suitable for continuous GMP manufacturing where solvent vapors (e.g., methanol, acetonitrile, ethyl acetate) may accumulate. The system supports both gradient and isocratic modes, with four modular configurations (EX03KG through EX25KG) scaling from 3 L/min to 25 L/min maximum flow capacity—each maintaining ≤0.5% RSD flow precision and ±2% volumetric accuracy under defined operational thresholds.

Key Features

• Explosion-proof certified architecture: All motor drives, solenoid valves, detectors, and electrical junctions conform to ATEX Directive 2014/34/EU, IECEx Scheme, and UL Class I Division 1 standards.
• Modular high-flow pump train: Dual-plunger, pulse-dampened pumping system with SUS316 wetted parts; configurable for single- or dual-solvent delivery with 4-channel solvent selection (2×2 arrangement).
• UV/VIS detection with 195–600 nm spectral range and 1 nm wavelength resolution; optimized optical path for high-sensitivity monitoring under high-dilution preparative conditions.
• 5-channel fraction collector with valve-switched routing and integrated drain line—designed for unattended collection across multiple parallel columns or sequential purification cycles.
• PLC-based real-time control layer synchronized with FA-class PC host (located in non-hazardous zone), supporting remote operation, alarm logging, and emergency shutdown protocols.
• Full CSV-compliant software stack developed per Japan MHLW’s “Guideline on Validation of Computerized Systems”, including electronic signatures, audit trail, and change control modules aligned with FDA 21 CFR Part 11 and EU Annex 11 requirements.

Sample Compatibility & Compliance

The K-Prep EX accommodates a broad spectrum of sample matrices—including thermally labile small molecules, peptides, natural product extracts, and synthetic oligomers—without degradation, thanks to low-shear fluidics and ambient-temperature column compartments. Column compatibility spans standard stainless-steel or PEEK-packed preparative columns (10–100 mm ID) and custom-packed beds up to 200 mm ID. All wetted materials meet USP Class VI and ASTM F899 biocompatibility criteria. Regulatory alignment includes documented IQ/OQ protocols traceable to JIS Z 8101-1 (statistical methods for testing), ISO 9001:2015 quality management, and GMP Annex 15 validation lifecycle expectations. System documentation packages support MHRA, PMDA, and EMA inspections, with full traceability of calibration standards, sensor certifications, and material test reports (MTRs) for all SUS316 components.

Software & Data Management

Control and data acquisition are managed via YMC’s proprietary K-Prep EX Control Suite, running on Windows 7 Embedded (or later LTSB versions). The software provides role-based access control (RBAC), time-stamped event logs, and automated generation of electronic batch records (EBRs). All chromatograms, method parameters, and fraction metadata are stored in a relational database with SHA-256 hashing for integrity verification. Audit trails record user actions, parameter modifications, and system state transitions with immutable timestamps—fully compliant with ALCOA+ principles. Integration with LIMS and MES platforms is supported through OPC UA and ASTM E1578-compliant interfaces. Raw data files adhere to ANDI/NetCDF format for third-party reprocessing.

Applications

• GMP-compliant purification of APIs during Phase III clinical supply and commercial manufacturing.
• Isolation of chiral compounds using YMC’s Chiralpak® and Cellulose-based preparative columns under explosion-safe conditions.
• Recovery and polishing of monoclonal antibody fragments following capture chromatography.
• Scalable separation of plant-derived alkaloids, flavonoids, and terpenoids in natural product development.
• Recycling of expensive chiral ligands and catalysts in asymmetric synthesis workflows.
• Process analytical technology (PAT) integration via real-time UV peak tracking and automated fraction triggering based on threshold absorbance or derivative algorithms.

FAQ

What explosion protection standards does the K-Prep EX meet?
The system complies with ATEX 2014/34/EU (Equipment Group II, Category 2G), IECEx Ex d/ib IIB T4 Gb, and UL Class I Division 1 Groups B, C, D—certified by notified bodies including SGS and UL Japan.
Can the K-Prep EX be validated for FDA-regulated facilities?
Yes. Full IQ/OQ documentation packages—including protocol templates, executed reports, and CSV evidence—are provided. The software satisfies 21 CFR Part 11 requirements for electronic records and signatures.
Is remote monitoring supported from outside the hazardous area?
Absolutely. The FA PC interface operates from a segregated non-hazardous control room, connected via fiber-optic isolation to the PLC. VNC or RDP access is permitted under IT security policy constraints.
What column hardware options are available?
Standard offerings include 10–100 mm ID stainless-steel columns with YMC’s proprietary packing services; custom-engineered columns up to 200 mm ID with jacketed temperature control are available upon request.
Does the system support method transfer from analytical to preparative scale?
Yes. The K-Prep EX includes built-in scale-up calculators based on linear velocity equivalence and mass overload modeling, compatible with YMC’s Method Transfer Software (MTS) v3.2.