Elite P230p High-Pressure Preparative Liquid Chromatography Pump

Overview

The Elite P230p is a high-pressure preparative liquid chromatography pump engineered for robust, reproducible solvent delivery in both analytical and small-to-medium-scale preparative HPLC applications. Based on dual-plunger reciprocating pump architecture with active pulse dampening and real-time pressure feedback control, the P230p delivers precise, low-pulsation flow across its full operational range — critical for baseline stability in UV-Vis detection and reliable fraction collection in purification workflows. Designed to comply with core requirements of ISO 9001-certified manufacturing and aligned with general Good Laboratory Practice (GLP) instrumentation expectations, the P230p integrates seamlessly into modular LC systems, including those incorporating Elite UV detectors (e.g., UV230II with semi-preparative or preparative flow cells) and Rheodyne-compatible manual or motorized injection valves and switching manifolds.

Key Features

• Dual-servo-controlled plunger system with adaptive stroke adjustment ensures consistent volumetric displacement across variable flow rates (0.01–40.00 mL/min) and backpressures up to 30 MPa.
• High-resolution stepper motor drive enables flow setting resolution of 0.01 mL/min — essential for method development, gradient optimization, and reproducible scale-up from analytical to preparative conditions.
• Real-time pressure monitoring with digital display and analog output; pressure readout accuracy maintained within ±3% of full-scale value under dynamic load conditions.
• Low-pressure pulsation design (<1.0% peak-to-peak amplitude) minimizes baseline noise in UV absorbance measurements and improves fraction homogeneity during collection.
• Stainless-steel fluidic path (316L wetted materials), chemically resistant seals, and integrated check valve diagnostics support long-term operation with common HPLC solvents including acetonitrile, methanol, THF, and aqueous buffers.
• Compact footprint (420 × 280 × 175 mm) and universal 220 V / 50 Hz power input facilitate integration into standard laboratory environments without specialized infrastructure.

Sample Compatibility & Compliance

The P230p is compatible with reversed-phase, normal-phase, ion-exchange, and size-exclusion chromatographic modes when used with appropriate columns (e.g., C18, silica, amino, or SEC resins) and mobile phases. Its pressure and flow specifications meet typical operational envelopes defined in ASTM D7413 (Standard Guide for HPLC System Performance Verification) and align with routine QC/QA validation practices per USP Chromatography. While not inherently 21 CFR Part 11-compliant as a standalone unit, the pump supports audit-trail-ready data acquisition when paired with compliant chromatography data systems (CDS) that record timestamped flow/pressure events and method parameters. All mechanical components conform to RoHS Directive 2011/65/EU restrictions on hazardous substances.

Software & Data Management

The P230p operates in standalone mode via front-panel keypad and LCD interface, supporting preset method storage (up to 10 user-defined protocols). For system-level integration, it provides RS-232 and optional USB communication ports to enable remote control and real-time parameter logging through third-party CDS platforms (e.g., Chromeleon, Empower, or open-source tools such as OpenLab CDS). Flow and pressure telemetry can be synchronized with detector signals for post-run integrity assessment — including retention time consistency, peak asymmetry evaluation, and gradient dwell volume verification. All firmware updates are delivered via secure vendor-provided binaries and require local administrative authentication.

Applications

• Preparative purification of synthetic intermediates and active pharmaceutical ingredients (APIs) at gram-scale using 10–30 mm ID columns.
• Isolation of natural product fractions from plant extracts or fermentation broths under isocratic or linear gradient elution.
• Method transfer from analytical UHPLC to preparative HPLC, leveraging identical retention behavior due to precise flow accuracy (±0.2%) and minimal dwell volume contribution.
• Quality control of reference standards preparation where trace-level impurity removal demands high-resolution separation and reproducible injection volumes.
• Academic and industrial research requiring flexible, cost-effective LC pumping solutions without proprietary software lock-in or service contract dependencies.

FAQ

What is the maximum pressure rating at 30 mL/min?
The P230p maintains a maximum pressure rating of 20 MPa when operating between 20.001 and 40.00 mL/min; this limitation ensures thermal and mechanical stability of the pump head assembly under sustained high-flow conditions.
Does the pump support gradient mixing?
No — the P230p is a single-channel high-pressure pump. Gradient elution requires external low-pressure mixing modules or a second synchronized P230p unit configured in binary or ternary mode.
Can it be used with corrosive mobile phases such as TFA or HFIP?
Yes, provided appropriate seal material selection (e.g., Kalrez® or FFKM) is specified at time of order; standard configuration uses PTFE/Viton seals suitable for most organic/aqueous solvents but not highly fluorinated or strong oxidizing agents.
Is firmware upgrade documentation publicly available?
Yes — Elite provides English-language release notes, checksum-verified firmware binaries, and step-by-step update procedures through its authorized distributor portal; no subscription or license key is required.
How is flow accuracy verified during installation qualification (IQ)?
Per ISO/IEC 17025-aligned protocols, flow accuracy is validated using gravimetric measurement over ≥5 minutes at three points (1, 10, and 30 mL/min) with certified analytical balance (±0.1 mg readability) and temperature-controlled solvent reservoir (±0.5 °C).