Antek 9000VN Total Nitrogen Analyzer (Refurbished)

Overview

The Antek 9000VN Total Nitrogen Analyzer is a high-precision, chemiluminescence-based elemental analyzer engineered for the quantitative determination of total nitrogen content in liquid hydrocarbon samples—including gasoline, diesel, jet fuel, lubricants, and crude oil fractions. Operating on the principle of high-temperature oxidative combustion followed by gas-phase chemiluminescent detection of nitrogen monoxide (NO), the 9000VN delivers trace-level sensitivity (sub-ppm detection limits), excellent linearity across a wide dynamic range (0.01–10,000 ppm N), and high reproducibility essential for refinery QA/QC, regulatory compliance testing, and R&D laboratories. As a refurbished unit sourced and certified by SpectraLab Scientific, this instrument has undergone full functional validation, including combustion furnace calibration, ozone generator performance verification, photomultiplier tube (PMT) response characterization, and system blank stability assessment—ensuring metrological integrity prior to resale.

Key Features

• High-temperature quartz combustion furnace (up to 1100 °C) with precise temperature control for complete sample oxidation
• Integrated chemiluminescence detector utilizing ozone-mediated NO* emission at 1200 nm for selective nitrogen quantification
• Dedicated Windows-based workstation with Antek’s proprietary acquisition and analysis software (v5.x or later)
• Automated sample introduction via programmable liquid autosampler (standard 100-position tray support)
• Robust architecture featuring corrosion-resistant gas pathways, ceramic-lined reaction zones, and sealed optical chamber
• Compliance-ready design supporting audit trails, user access levels, and electronic signature capability per FDA 21 CFR Part 11 requirements when configured with validated software

Sample Compatibility & Compliance

The 9000VN accommodates a broad spectrum of liquid matrices without derivatization: volatile and non-volatile fuels, distillates, biodiesel blends, and process streams with dissolved nitrogen compounds (e.g., pyridines, quinolines, nitriles). It meets the methodological requirements of ASTM D5762 (automated combustion chemiluminescence), ASTM D4629 (for low-nitrogen gasoline), and ISO 14851/14852 (for wastewater and industrial effluents). All refurbished units are verified against certified reference materials (CRMs) traceable to NIST SRMs (e.g., NIST SRM 2724b, 2725a) and documented in a Certificate of Reconditioning that includes as-found/as-left data, calibration history, and preventive maintenance records.

Software & Data Management

The included workstation runs Antek’s native software suite, enabling real-time signal monitoring, peak integration using customizable baseline algorithms, multi-point calibration curve generation (linear, quadratic, or weighted), and automated report export in PDF, CSV, or LIMS-compatible XML formats. Audit trail functionality logs all critical events—including method edits, calibration updates, result approvals, and user logins—with immutable timestamps. Data files are stored with SHA-256 checksums to ensure integrity; optional integration with laboratory information management systems (LIMS) is supported via ODBC or ASTM E1384-compliant interfaces.

Applications

• Refinery product release testing per ASTM D7153 (jet fuel specification)
• Monitoring nitrogen removal efficiency in hydrotreating units
• Quality control of synthetic lubricants and base oils per API RP 2540
• Environmental analysis of nitrogen-containing pollutants in petrochemical wastewater
• R&D studies on nitrogen speciation effects on catalyst deactivation and combustion emissions
• Contract laboratory services requiring GLP-compliant nitrogen reporting under ISO/IEC 17025

FAQ

Is this instrument supplied with original manufacturer documentation?
Yes—each refurbished 9000VN includes scanned copies of the original operation manual, safety guide, and factory calibration certificate, plus SpectraLab’s Certificate of Reconditioning.
What consumables are required for routine operation?
Standard consumables include high-purity oxygen and zero-air supply gases, quartz combustion tubes, PMT ozone scrubbers, and certified nitrogen CRMs for daily calibration verification.
Can the system be upgraded to support total sulfur analysis?
No—the 9000VN is dedicated to nitrogen detection only; Antek’s 9000VS model is required for sulfur analysis using UV fluorescence detection.
Does the 6-month warranty cover labor and parts globally?
Warranty coverage applies to parts and labor within North America; international service agreements can be arranged separately upon request.
Is remote diagnostics support available post-installation?
Yes—SpectraLab provides secure remote access support for software troubleshooting, method validation assistance, and firmware updates during the warranty period.