Chu Ding Technology LC3000 Single-Pump Isocratic High-Performance Liquid Chromatograph

Overview

The Chu Ding Technology LC3000 is a single-pump, isocratic high-performance liquid chromatograph engineered for routine analytical applications in quality control laboratories, pharmaceutical R&D, and academic research settings. Built upon classical reversed-phase HPLC architecture, the system employs a dual-plunger reciprocating pump (P3000) to deliver precise, pulse-free solvent flow under high pressure—up to 42 MPa—enabling robust separation of small-molecule analytes on standard 4.6 mm i.d. columns. The UV3000 photodiode-array-capable UV-Vis detector provides wavelength-selective quantification across 190–700 nm, supporting method development and compliance-driven analysis. Designed for operational simplicity and regulatory readiness, the LC3000 integrates hardware, software, and consumables—including an imported Kromasil C18 column—into a turnkey configuration validated for GLP environments.

Key Features

• Dual-plunger reciprocating P3000 high-pressure pump with programmable pressure limits, slow-start/stop functionality, and automatic parameter retention; flow range 0.001–9.999 mL/min with ≤0.1% RSD repeatability (methanol/water 80:20, 2–5% flow range)
• UV3000 UV-Vis detector featuring deuterium lamp (standard), optional tungsten lamp, ±2 nm wavelength accuracy, and programmable scanning (start/end points and step size configurable)
• 7725i manual injection valve with integrated 20 µL fixed-loop design, compatible with standard 1/8″ stainless steel or PEEK tubing
• Full-featured chromatography workstation with bilingual interface (English/Chinese), real-time system back-control, electronic signature support, and GLP-compliant audit trail logging per FDA 21 CFR Part 11 requirements
• Kromasil C18 column (250 × 4.6 mm, 5 µm) supplied pre-packed and tested—certified for batch-to-batch reproducibility and USP L1 classification
• Integrated solvent tray, startup toolkit (including spare tubing, ferrules, wrenches), and factory-calibrated modules shipped ready for installation

Sample Compatibility & Compliance

The LC3000 supports a broad range of low-to-medium polarity analytes typical in pharmaceutical assay, impurity profiling, and stability-indicating methods. Its isocratic operation is optimized for assays requiring high run-to-run consistency—such as content uniformity testing, dissolution analysis, and reference standard quantification—where gradient complexity is unnecessary. All hardware components meet CE marking requirements for electromagnetic compatibility (EMC) and low-voltage directive (LVD). The chromatography software implements secure user authentication, session time-outs, and immutable audit trails for method parameters, calibration records, and raw data files—fully aligned with ISO/IEC 17025, ICH Q2(R2), and GLP principles. Column oven integration is available as an optional upgrade for temperature-controlled retention time stability.

Software & Data Management

The embedded chromatography workstation provides native acquisition, processing, reporting, and archiving capabilities without third-party dependencies. It supports AIA (.cdf) file format export for cross-platform data exchange and includes built-in tools for peak integration (tangent skim, baseline correction, shoulder detection), calibration curve generation (linear, quadratic, weighted), and system suitability assessment (theoretical plates, tailing factor, resolution). Audit trail entries record operator ID, timestamp, action type (e.g., “method modified”, “data deleted”), and pre-change/post-change values. Data integrity safeguards include write-protection of raw files, electronic signatures for report approval, and encrypted local database storage. Remote monitoring via Ethernet is supported through optional RS232-to-TCP/IP gateway modules.

Applications

• Pharmaceutical QC release testing: active pharmaceutical ingredient (API) assay, related substances, residual solvents (with appropriate column/detector configuration)
• Food and beverage analysis: preservative quantification (e.g., benzoic acid, sorbic acid), caffeine, artificial colors
• Environmental monitoring: pesticide residue screening in water extracts using EPA Method 531.1-compatible protocols
• Academic teaching labs: HPLC fundamentals instruction, method validation exercises, retention mechanism studies
• Clinical research: therapeutic drug monitoring (TDM) for narrow-therapeutic-index compounds such as digoxin or phenytoin

FAQ

Is the LC3000 compliant with FDA 21 CFR Part 11?
Yes—the chromatography workstation includes role-based access control, electronic signatures, and immutable audit trails required for Part 11 compliance in regulated environments.
Can the system be upgraded to gradient operation?
No—the LC3000 is configured exclusively for isocratic elution. Gradient capability requires the LC4000 series with dual-pump architecture and low-dead-volume mixing chamber.
What is the warranty coverage and service support structure?
The LC3000 includes a 12-month parts-and-labor warranty excluding consumables (columns, lamps, frits); on-site installation, commissioning, and operator training are included at no additional cost.
Does the UV3000 detector support wavelength scanning during acquisition?
Yes—it offers programmable stop-flow scanning with user-defined start/end wavelengths and step increments, enabling spectral confirmation of peak purity.
Are replacement lamps and columns available through global distribution partners?
Yes—deuterium and tungsten lamps, Kromasil C18 columns (various dimensions/particle sizes), and certified reference standards are stocked by authorized distributors in North America, EMEA, and APAC regions.