Agilent 7500 ICP-MS Used Inductively Coupled Plasma Mass Spectrometer

Overview

The Agilent 7500 ICP-MS is a high-sensitivity, quadrupole-based inductively coupled plasma mass spectrometer engineered for ultra-trace elemental analysis and isotopic ratio measurement in complex matrices. Operating on the principle of ionization in a high-temperature argon plasma (~7,000–10,000 K), followed by mass separation via a robust quadrupole mass filter and detection using a secondary electron multiplier (SEM), this instrument delivers sub-femtogram-per-liter detection limits for most elements across the periodic table. Designed for laboratory environments requiring regulatory compliance and long-term operational stability, the 7500 platform features a collision/reaction cell (CRC) architecture to mitigate polyatomic interferences—particularly critical for analyses involving Cl-, S-, and Ar-based species (e.g., ⁴⁰Ar³⁵Cl⁺ on ⁷⁵As⁺). Its RF-driven interface, optimized ion optics, and vacuum system architecture support consistent signal stability over extended acquisition periods, making it suitable for routine environmental monitoring, clinical trace metal quantification, and geological isotope dilution workflows.

Key Features

• Quadrupole mass analyzer with mass range 1–260 u, enabling full elemental coverage from Li to U
• Dynamic reaction cell (DRC) technology with selectable reactive/collision gases (He, H₂, NH₃, O₂) for interference removal
• Robust RF plasma interface with automatic torch alignment and water-cooled sampler and skimmer cones
• Dual-mode detector: analog mode for high-intensity signals and pulse-counting mode for low-abundance isotopes
• Integrated autosampler compatibility (e.g., Agilent G4219A) supporting programmable sample introduction, rinse cycles, and internal standard addition
• Front-panel touchscreen interface with embedded diagnostics and real-time plasma status monitoring
• Compliance-ready architecture supporting audit trails, user access levels, and electronic signature capability when paired with compliant software

Sample Compatibility & Compliance

The Agilent 7500 ICP-MS accepts liquid samples introduced via nebulization (cross-flow or microflow) and compatible with standard PFA, quartz, or sapphire sample introduction systems. It supports direct analysis of aqueous standards, digested environmental solids (EPA Methods 200.8, 6020B), biological fluids (after dilution or chelation), and semiconductor-grade acids (SEMI C37). The system meets key performance criteria outlined in ISO/IEC 17025:2017 for testing laboratories and aligns with method validation requirements under US EPA, ASTM D5673, and ISO 17294-2. When operated with Agilent MassHunter Workstation v4.4 or later under controlled IT environment configurations, it supports data integrity practices consistent with FDA 21 CFR Part 11 and EU Annex 11 expectations—including secure user authentication, immutable audit logs, and electronic record retention.

Software & Data Management

Data acquisition and processing are performed using Agilent MassHunter Workstation software (v4.3+), which provides quantitative and semi-quantitative workflows, isotope ratio calculation modules, interference correction algorithms (e.g., mathematical correction, CRC tuning), and customizable reporting templates. Raw data files (.d format) are stored in a hierarchical directory structure with metadata embedding (acquisition time, instrument parameters, calibration history). The software supports LIMS integration via ASTM E1384-compliant export protocols and enables batch processing of up to 200 samples per sequence. All instrument control parameters—including RF power, gas flows, detector voltage, and dwell times—are fully scriptable and version-controlled within method files, facilitating SOP adherence and reanalysis reproducibility.

Applications

• Environmental testing: quantification of heavy metals (Pb, Cd, As, Hg) and rare earth elements (REEs) in drinking water, wastewater, soil leachates, and airborne particulates
• Clinical research: trace element profiling in serum, urine, and tissue homogenates for nutritional assessment or toxicology screening
• Geochemical analysis: U-Pb, Lu-Hf, and Sm-Nd isotope ratio measurements in zircon and apatite following acid digestion and column separation
• Pharmaceutical quality control: elemental impurity testing per ICH Q3D guidelines, particularly for catalyst residues (Pd, Pt, Ni, Rh)
• Materials science: characterization of dopants and contaminants in high-purity silicon, lithium battery cathode materials, and optical glass

FAQ

Is this unit refurbished and certified to original Agilent specifications?
Yes. Each Agilent 7500 ICP-MS undergoes full functional verification including sensitivity testing (e.g., >1 × 10⁶ cps/ppq In), oxide rate (<1.5%), and background equivalent concentration (BEC) validation against NIST SRM 3100 series standards.
What documentation accompanies the instrument?
A complete set includes factory service records, calibration certificates traceable to NIST, operation manuals, MassHunter software license transfer documentation, and a post-installation performance qualification (PQ) report.
Can the system be integrated into an existing lab network with LIMS?
Yes—via MassHunter’s ODBC-compliant database export and ASTM E1384-compliant ASCII output formats; network configuration requires static IP assignment and firewall port mapping for remote diagnostics.
What maintenance support is available after purchase?
Technical support and spare parts supply are provided through authorized Agilent service partners in North America and Europe; optional annual service contracts include preventive maintenance, software updates, and priority response.