HiTech HT-1010 Fully Automated Amino Acid Analyzer (Classic)

Overview

The HiTech HT-1010 Fully Automated Amino Acid Analyzer (Classic) is a dedicated high-performance liquid chromatography (HPLC)-based analytical system engineered for precise, reproducible quantification of proteinogenic and non-proteinogenic amino acids in complex biological, food, pharmaceutical, and agricultural matrices. It implements cation-exchange chromatography coupled with post-column derivatization using ninhydrin reagent, followed by dual-wavelength visible absorbance detection at 570 nm (primary for α-amino acids) and 440 nm (secondary for imino acids such as proline). This methodology aligns with internationally recognized reference standards—including AOAC Official Method 982.30, ISO 13903:2005, and USP <621>—and satisfies regulatory requirements for method validation in GLP- and GMP-compliant environments. The HT-1010 is designed as a complete turnkey solution, integrating high-pressure pumping, temperature-controlled autosampling, gradient-capable column oven, thermally regulated post-column reaction, and dual-channel photometric detection—all under unified software control.

Key Features

• High-precision dual-plunger reciprocating pump with chemically resistant wetted materials (e.g., sapphire pistons, PEEK tubing), delivering flow stability ≤0.1% RSD and pressure capability up to 40 MPa—enabling robust operation with high-efficiency cation-exchange columns.
• Full-volume direct injection autosampler with programmable variable volume (0–100 µL), equipped with optional Peltier-based temperature control (4–25 °C) to ensure sample integrity during extended unattended runs.
• Thermoelectric (Peltier) column oven supporting linear or stepwise temperature gradients (ambient to 85 °C), facilitating resolution optimization for challenging amino acid pairs (e.g., leucine/isoleucine, valine/threonine).
• Electrically heated post-column reactor with precise PID-controlled temperature regulation (ambient to 150 °C), ensuring consistent ninhydrin reaction kinetics and minimizing baseline drift.
• Dual-wavelength photometer with fixed 570 nm and 440 nm LED sources and an 8 µL flow cell—eliminating lamp replacement, wavelength calibration drift, and optical alignment maintenance.
• Integrated system management software compliant with FDA 21 CFR Part 11 requirements, including electronic signatures, audit trails, user role-based access control, and automated system suitability testing (SST) protocols.

Sample Compatibility & Compliance

The HT-1010 accommodates hydrolyzed protein digests (6M HCl, 110 °C, 22–24 h), enzymatic hydrolysates, cell culture supernatants, plasma/serum extracts, food hydrolysates, and fermentation broths—following standard sample cleanup procedures (e.g., centrifugation, filtration, solid-phase extraction). All hardware and software components conform to IEC 61010-1 safety standards. Method performance meets or exceeds the precision criteria defined in ISO/IEC 17025 for accredited testing laboratories. The instrument supports full traceability per GLP Annex 11 and GMP Annex 11 guidelines, with timestamped raw data files, parameter logs, and error event records stored in immutable format.

Software & Data Management

The HT-1010 is operated via HiTech AminoSoft™, a modular Windows-based platform available in English or Chinese language variants. Optional pharmacopeial edition includes pre-configured USP/EP/ChP amino acid methods, system suitability templates, and report formats compliant with regulatory submissions. Data acquisition supports real-time peak integration using tangent skim and valley-to-valley algorithms. All chromatograms, calibration curves, and QC reports are exportable in PDF, CSV, and XML formats. The software incorporates automatic system cleaning sequences (e.g., column regeneration, reactor flush, detector cell purge) triggered by user-defined run schedules or failure conditions. Remote diagnostics and firmware updates are supported via secure HTTPS-based network interface.

Applications

• Quantitative profiling of free and total amino acids in infant formula, dairy products, meat, and plant-based proteins per GB 5009.124–2016 and AOAC 982.30.
• Stability-indicating assays for therapeutic peptides and recombinant proteins in biopharmaceutical development.
• Nutritional labeling compliance testing across EU Regulation (EU) No 1169/2011 and FDA 21 CFR Part 101.
• Metabolomic studies requiring high-resolution separation of >30 native amino acids without derivatization pre-treatment.
• Quality control of amino acid supplements, feed additives, and fermentation-derived biochemicals.

FAQ

Does the HT-1010 support gradient elution?
Yes—the thermoelectric column oven enables precise temperature programming, and the dual-pump configuration allows solvent gradient formation via low-pressure mixing when paired with compatible buffer delivery modules.
Is ninhydrin reagent supplied with the instrument?
HiTech provides proprietary ninhydrin-based derivatization reagents in sealed, air-tight bottles with 12–24 month shelf life at ambient storage conditions; no refrigeration required.
Can the system be validated for GMP environments?
Yes—full IQ/OQ/PQ documentation packages, along with 21 CFR Part 11-compliant software validation kits and third-party audit support, are available upon request.
What column types are compatible?
The system is optimized for HiTech’s proprietary high-efficiency cation-exchange columns (e.g., HT-AA-100 series), but also supports industry-standard resins from Bio-Rad, Phenomenex, and Shimadzu when configured with appropriate guard columns and mobile phase compatibility.
Is remote monitoring supported?
Yes—via secure web interface with TLS 1.2 encryption; users can view real-time status, initiate/pause runs, and download logs from any authorized workstation on the local network or via VPN.