LabAlliance SSI Series 340 Preparative Liquid Chromatography System

Overview

The LabAlliance SSI Series 340 Preparative Liquid Chromatography System is an engineered solution for scalable, reproducible purification of organic and pharmaceutical compounds across milligram-to-gram quantities. Built upon proven high-pressure liquid chromatography (HPLC) architecture, the system operates on isocratic elution principles—ideal for laboratories requiring robust, cost-effective separation of structurally similar analytes where gradient complexity is unnecessary. Its core design integrates a dual-piston syringe pump, stainless-steel fluidic pathway, and a variable-pathlength UV detector to ensure consistent retention time stability, minimal band broadening, and high recovery yields. The system is purpose-built for semi-preparative and entry-level preparative applications—including synthetic chemistry support, natural product isolation, and early-stage API purification—where throughput, operational reliability, and regulatory traceability are prioritized over ultra-high-resolution gradient methods.

Key Features

• High-pressure isocratic pumping system delivering stable flow rates up to 40 mL/min with pulse-dampened output, enabling consistent loading across varied column dimensions (e.g., 10–50 mm ID)
• UV201 variable-wavelength detector with SS-Kalrez flow cell offering adjustable optical pathlength (0–3 mm), supporting both high-sensitivity detection for trace fractions and high-capacity monitoring for concentrated eluates
• Rheodyne 3725(i) manual injection valve configured for loop-based, column-integrated sample introduction—minimizing dead volume and ensuring precise, repeatable injection volumes from 0.1 to 5 mL
• Modular chassis constructed with electropolished 316 stainless steel wetted parts, compliant with USP Class VI materials requirements and resistant to common organic solvents (acetonitrile, methanol, THF, DCM, ethyl acetate)
• Self-cleaning pump head architecture reduces seal wear and extends mean time between maintenance (MTBM) to >6,000 hours under typical lab usage conditions
• Compact footprint (W × D × H: 60 × 55 × 45 cm) facilitates integration into fume hoods or shared instrumentation rooms without compromising service access

Sample Compatibility & Compliance

The Series 340 accommodates both liquid samples introduced directly via syringe pump-assisted loading and solid samples pre-loaded onto disposable or reusable cartridges—enabling rapid method transfer from analytical to preparative scale. It supports reversed-phase (C18, C8, phenyl-hexyl), normal-phase (silica, cyano), and ion-exchange media across column lengths from 50 to 250 mm. All hardware components meet ASTM F899 standards for stainless steel biocompatibility and are compatible with ISO 9001-certified quality management environments. When operated with audit-trail-enabled software (optional upgrade), the system satisfies FDA 21 CFR Part 11 requirements for electronic records and signatures—making it suitable for GMP-aligned purification workflows in contract development and manufacturing organizations (CDMOs).

Software & Data Management

Control and data acquisition are managed through LabAlliance’s native ChromaSoft™ Prep Suite—a Windows-based application supporting real-time pressure/flow/UV monitoring, method storage, and fraction trigger logic based on absorbance thresholds or time windows. Raw data files are saved in vendor-neutral .csv and .dx format for post-acquisition analysis in third-party tools (e.g., OpenChrom, Chromeleon). The software includes built-in calibration wizards for flow rate verification and UV lamp intensity validation, with logs automatically timestamped and user-ID tagged. Optional network licensing enables centralized instrument scheduling and remote diagnostics via secure HTTPS interface—supporting multi-user labs operating under GLP documentation standards.

Applications

• Purification of reaction mixtures following cross-coupling, amidation, or heterocycle synthesis—achieving >95% purity at 10–500 mg scale
• Isolation of bioactive natural product fractions from crude plant extracts using silica or diol columns
• Desalting and buffer exchange of peptides and oligonucleotides prior to lyophilization or formulation studies
• Recycling of chiral intermediates via enantioselective separations on immobilized polysaccharide phases (e.g., Chiralpak AD-H, AS-H)
• Stability-indicating method development for forced degradation products in pharmaceutical impurity profiling

FAQ

Can the Series 340 be upgraded to gradient capability?
No—the Series 340 is a fixed-isocratic platform by design. Gradient functionality requires the Series 400 or higher-tier systems equipped with dual solvent selection valves and proportioning modules.
What column hardware interfaces does it support?
Standard 1/4″-28 UNF fittings for stainless-steel columns; optional Swagelok®-compatible adapters available for PEEK or glass-packed columns.
Is the UV201 detector compliant with pharmacopeial wavelength accuracy requirements?
Yes—the detector undergoes factory calibration against NIST-traceable holmium oxide and didymium filters, meeting USP and EP 2.2.25 specifications for wavelength verification.
How is system suitability verified before a purification run?
Built-in system suitability tests include backpressure profiling at multiple flow rates, baseline noise assessment (<0.5 mAU RMS), and peak symmetry evaluation using uracil or acetophenone test injections.
Does the system support 21 CFR Part 11 compliance out-of-the-box?
Audit trail, electronic signature, and role-based access control require ChromaSoft™ Prep Suite v3.2 or later with validated installation package—available as a qualified software option.