Acchrom-Tech S6000ULTRA Ultra-High-Performance Liquid Chromatograph (UHPLC)

Overview

The Acchrom-Tech S6000ULTRA Ultra-High-Performance Liquid Chromatograph (UHPLC) is an engineered platform designed for high-resolution, high-throughput separations under ultra-high pressures up to 150 MPa. Built upon a dual-plunger, high-pressure binary gradient pumping architecture with independent motor control and precision lead-screw actuation, the system delivers exceptional flow stability, gradient accuracy, and solvent compressibility compensation—critical for reproducible retention time alignment across method transfer and long-term sequence runs. Its fully integrated design incorporates a low-dead-volume active check valve system, real-time dual-pressure feedback monitoring, and zero-volume pressure transducers calibrated traceably to NIST standards. As a native Chinese OEM platform with >95% domestic critical component sourcing—including pump heads, injection valves, Peltier-based column ovens, and optical detectors—the S6000ULTRA meets stringent performance benchmarks while supporting local regulatory compliance frameworks such as CNAS-CL01 and GB/T 27417.

Key Features

• 150 MPa Binary Gradient Pump: Dual independent servo-motor-driven plunger system with real-time solvent compressibility modeling and dynamic pressure feedback correction; achieves ≤0.07% RSD flow precision at 0.05–2.0 mL/min and ≤0.15% RSD gradient composition accuracy over 0.1–100% B.
• High-Precision Autosampler: Quantitative loop injection mechanism with three selectable modes (full-loop, partial-loop, needle-wash); accommodates 162 positions of standard 2 mL vials and 4 positions of 4 mL vials; sample compartment temperature controlled via forced-air circulation from 4 °C to 45 °C (±0.3 °C stability).
• Intelligent Column Compartment: Peltier-based heating/cooling module combined with laminar air recirculation ensures uniform thermal distribution; programmable range 1.0–90.0 °C in 0.1 °C increments; includes optional pre-heating of mobile phase prior to column inlet to minimize thermal mismatch and band broadening.
• Modular Detector Suite: Interchangeable detection modules compliant with ISO 17025 traceability requirements: UV-Vis (190–900 nm, 500 Hz acquisition), DAD (1024-pixel array, 1.2 nm optical resolution), FLR (variable excitation/emission, PMT-based), RI (temperature-compensated, ±1.0 × 10⁻⁶ RIU noise), and ELS (nebulizer gas control, 0.1–1000 ng sensitivity).
• Hardware Expandability: Supports dual-column switching valves (up to two units), auxiliary solvent selection valves, and optional post-column derivatization modules—all managed through unified timing and event control logic within the instrument firmware.

Sample Compatibility & Compliance

The S6000ULTRA accommodates standard 2 mL and 4 mL screw-thread or crimp-top vials, compatible with common autosampler racks (e.g., Agilent 5183-4479, Waters 186006772). It supports reversed-phase, HILIC, ion-exchange, size-exclusion, and chiral chromatographic methods using columns from 1.0 mm to 4.6 mm ID and lengths up to 250 mm. System validation documentation aligns with ICH Q2(R2) guidelines and includes full IQ/OQ/PQ protocols. Data integrity features conform to FDA 21 CFR Part 11 requirements, including electronic signatures, audit trails with immutable timestamps, and role-based user access control. The platform has been verified for GLP/GMP environments per ISO/IEC 17025:2017 Annex A.2 and supports ASTM D7097 (petroleum hydrocarbon analysis) and USP (chromatography) method equivalency assessments.

Software & Data Management

Controlled by AcchromChrom™ v4.2 software—a Windows 10/11-compatible application built on .NET Framework 6.0—the system provides intuitive method building, real-time chromatogram visualization, peak integration with customizable baseline algorithms (e.g., valley-to-valley, tangent skim), and automated system suitability testing (SST) reporting. Raw data are stored in vendor-neutral .CDF format (compatible with OpenLab CDS, Chromeleon, and Empower via conversion utilities). Audit trail records capture all parameter changes, sequence edits, and report generation events with operator ID, timestamp, and reason-for-change fields. Data backups support encrypted network drives and cloud-synced NAS configurations compliant with GDPR Article 32 security standards.

Applications

The S6000ULTRA serves as a primary analytical workhorse in pharmaceutical QC/QA labs for assay, dissolution, impurity profiling, and stability-indicating method development per ICH Q5C and Q1A(R2). In academic and industrial research settings, it enables rapid method scouting for complex natural product extracts, polymer additive screening, and biomarker quantification in plasma/urine matrices using microbore columns and low-flow gradients. Environmental laboratories deploy it for multi-residue pesticide analysis (EPA Method 1694), while food safety labs apply it to mycotoxin detection (AOAC 2007.01) and vitamin profiling (AOAC 992.16). Its high-pressure capability facilitates sub-2 µm particle column operation without backpressure-induced dwell volume distortion, ensuring robustness in UHPLC-MS coupling workflows.

FAQ

What is the maximum recommended operating pressure for routine use?
The system is rated for continuous operation at up to 135 MPa; 150 MPa represents the absolute safety limit under transient conditions and requires validated column hardware and fittings rated to ISO 11542-2 Class 5.

Can the autosampler accommodate non-standard vial formats?
Yes—custom rack adapters are available for 0.3 mL microvials, 96-well plates, and glass insert vials; mechanical alignment tolerances comply with ANSI/SCTE 10.1-2021 specifications.

Is the column oven compatible with active solvent pre-heating during gradient elution?
Yes—the optional pre-heater module maintains mobile phase temperature within ±0.5 °C of setpoint upstream of the column inlet, reducing thermal dispersion effects during steep gradients.

Does the system support 21 CFR Part 11-compliant electronic signatures?
Yes—AcchromChrom™ v4.2 implements role-based signature workflows, biometric authentication integration (via Windows Hello), and cryptographic hash logging of all signed documents and reports.

How is detector wavelength calibration verified?
Each UV-Vis and DAD module undergoes factory calibration using NIST-traceable holmium oxide and didymium oxide filters; users may perform periodic verification using the built-in spectral scan mode and reference library matching.