Agilent 7500c ICP-MS System with ASX-500 Autosampler

Overview

The Agilent 7500c ICP-MS is a high-performance, quadrupole-based inductively coupled plasma mass spectrometer engineered for ultra-trace elemental analysis in complex matrices. Operating on the fundamental principle of ion generation in a high-temperature argon plasma (~7,000 K), followed by mass separation via a radiofrequency-driven quadrupole mass filter and detection using a secondary electron multiplier, the 7500c delivers robust sensitivity, low background noise, and high mass resolution across the full isotopic range (m/z 5–280). Its integrated Octopole Reaction System (ORS) enables controlled collision/reaction chemistry—using gases such as He, H₂, or NH₃—to mitigate polyatomic interferences (e.g., ⁴⁰Ar¹⁶O⁺ on ⁵⁶Fe⁺, ⁴⁰Ar⁴⁰Ar⁺ on ⁸⁰Se⁺) without compromising transmission efficiency. This architecture extends analytical capability into demanding applications including environmental water analysis, clinical trace metal quantification, semiconductor-grade reagent screening, and geochemical isotope ratio profiling—where conventional quadrupole ICP-MS systems often encounter spectral overlap limitations.

Key Features

• Octopole Reaction System (ORS) with real-time gas selection and pressure control for interference removal in complex sample matrices
• High-transmission ion optics optimized for sensitivity at sub-femtogram-per-liter levels (e.g., ¹¹⁵In LOD ≈ 0.1 fg/L under standard conditions)
• Robust RF generator (27 MHz solid-state) with automatic impedance matching for stable plasma operation across variable matrix loads
• Integrated ASX-500 autosampler with 200-position capacity, programmable rinse cycles, and PTFE/PEEK fluidic path compatible with up to 5% HNO₃, HCl, or H₃PO₄ (HF excluded)
• Thermally stabilized detector housing and analog/digital dual-mode electron multiplier for extended dynamic range (>10⁹)
• Modular vacuum system with turbomolecular pump and dual-stage roughing pump, maintaining base pressure <5×10⁻⁸ Torr during acquisition

Sample Compatibility & Compliance

The Agilent 7500c accommodates liquid samples introduced via concentric nebulizer and quartz cyclonic spray chamber. It supports direct analysis of aqueous standards, digested environmental solids (EPA Method 6020B), biological fluids (diluted serum/plasma), and high-purity acids—provided total dissolved solids (TDS) remain below 0.2% and hydrofluoric acid is strictly avoided. The system complies with key regulatory frameworks governing elemental testing: it meets performance criteria outlined in ASTM D5673 (trace metals in water), ISO 17294-2 (water quality—ICP-MS methods), and USP / (elemental impurities in pharmaceuticals). When configured with audit-trail-enabled software and user-access controls, it supports GLP and GMP environments per FDA 21 CFR Part 11 requirements for electronic records and signatures.

Software & Data Management

Data acquisition and processing are performed using Agilent MassHunter Workstation Software (version B.08.x or later), which provides method development tools, isotope dilution calibration, interference correction algorithms (including ORS reaction mode optimization), and automated report generation. The software supports secure user authentication, configurable permission levels, and full electronic audit trails—including timestamps for method changes, data reprocessing events, and instrument parameter adjustments. Raw data files (.d format) are stored in vendor-neutral formats compatible with third-party statistical packages (e.g., R, Python pandas) for advanced multivariate analysis. All configuration files and calibration records are exportable for internal QA review or external regulatory submission.

Applications

• Environmental monitoring: Quantification of U, Th, Pb, Cd, As in drinking water and wastewater per EPA 200.8 and ISO 17294-2
• Clinical research: Measurement of essential/toxic elements (e.g., Se, Zn, Cu, Pb) in serum, urine, and whole blood
• Materials science: Trace impurity profiling (<0.1 ppq) in high-purity silicon, lithium battery cathode precursors, and catalyst formulations
• Geochemistry: Isotopic ratio determination (e.g., ⁸⁷Sr/⁸⁶Sr) with multi-collector compatibility via optional interface
• Pharmaceutical quality control: Elemental impurity testing of active pharmaceutical ingredients (APIs) and excipients per ICH Q3D guidelines

FAQ

Is this unit fully refurbished and tested prior to shipment?
Yes. Each Agilent 7500c undergoes comprehensive functional verification at SpectraLab Scientific’s ISO 17025-accredited facility, including mass calibration, sensitivity validation, oxide/hydroxide ratio assessment, and ORS gas optimization.
What documentation accompanies the instrument?
A complete set is provided: original Agilent factory manuals, calibration certificates, test reports, service history logs, and a signed warranty agreement covering parts and labor for six months.
Can the system be upgraded to support newer software versions or hardware modules?
All 7500c units retain full backward and forward compatibility with Agilent MassHunter releases through B.10.x and support optional upgrades including collision cell tuning kits, high-efficiency sample introduction kits, and remote diagnostics modules.
Is installation and on-site training included?
Installation support and remote operator training are included; on-site commissioning and hands-on training are available as billable services upon request.
Are consumables and spare parts available post-purchase?
Yes. SpectraLab maintains an inventory of genuine Agilent consumables—including torches, cones, pumps oils, and ORS gas regulators—as well as certified refurbished components for extended system longevity.