SPECTRO GREEN Inductively Coupled Plasma Optical Emission Spectrometer

Overview

The SPECTRO GREEN is a high-performance, full-spectrum direct-reading inductively coupled plasma optical emission spectrometer (ICP-OES) engineered for trace elemental analysis in complex matrices. It operates on the fundamental principle of atomic emission spectroscopy: liquid samples are nebulized into an argon plasma at ~6,000–10,000 K, where elements are atomized and excited; emitted photons are dispersed by a high-resolution echelle optical system and detected simultaneously across the full spectral range (165–770 nm). Unlike sequential or limited-range instruments, the SPECTRO GREEN captures the entire emission spectrum in a single exposure—enabling multi-element quantification without wavelength scanning, thereby maximizing throughput and analytical flexibility. Designed and manufactured in Germany, it integrates decades of SPECTRO’s expertise in plasma source engineering, optical design, and robust laboratory instrumentation.

Key Features

• Vertical Synchronized Dual-View Optical Interface (DSOI): A proprietary optical architecture that employs two precisely aligned optical paths and an enhanced reflective mirror to collect emission signals from both lateral sides of a vertically oriented plasma torch. This configuration delivers >3× higher sensitivity than conventional radial-view systems—without compromising stability or introducing spectral interferences typical of legacy dual-view designs.
• GigE High-Speed Readout System: Enables complete spectral acquisition and data transfer in <100 ms per measurement, significantly reducing dwell time between samples and supporting high-throughput routine labs (e.g., environmental monitoring, regulatory testing).
• LDMOS RF Generator: Solid-state, air-cooled generator with rapid plasma ignition (<10 min warm-up), stable power delivery (27.12 MHz), and inherent tolerance to high-dissolved-solids (TDS) and organic matrices—eliminating the need for sample dilution in applications involving brines, digested soils, petrochemicals, or biological extracts.
• Sub-0.008 nm Optical Resolution: Achieved via a thermally stabilized, vacuum-enclosed echelle spectrometer with high-density CCD detector, ensuring baseline separation of adjacent emission lines (e.g., As 193.696 nm / Al 193.696 nm) and minimizing spectral overlap in multi-element analyses.
• Robust Mechanical Architecture: All-optical path components are housed in a rigid, temperature-stabilized monolithic frame; optical alignment is factory-locked and requires no user intervention during routine operation.

Sample Compatibility & Compliance

The SPECTRO GREEN is validated for direct analysis of aqueous solutions, acid-digested solids (EPA Method 200.7, 6020B), organic solvents (with oxygen ashing), and high-salt matrices (up to 25% w/v NaCl). Its DSOI design and LDMOS generator enable reliable quantification of trace metals (e.g., Cd, Pb, As, Hg, Cr) in challenging sample types including wastewater, soil leachates, fertilizer extracts, pharmaceutical excipients, and food digestates—without matrix-matched calibration or offline dilution. The system supports compliance with ISO/IEC 17025:2017 analytical method validation requirements, ASTM D1976, USP /, and EU Directive 2009/48/EC (Toy Safety). Data integrity is reinforced through audit-trail-enabled software adhering to FDA 21 CFR Part 11 principles.

Software & Data Management

Pre-installed SPECTRO ICP Analyzer Pro v4.x provides a role-based, workflow-driven interface compliant with GLP/GMP environments. Key capabilities include automated calibration curve generation (linear, quadratic, weighted), internal standard correction, spectral interference correction (using reference line libraries), real-time background subtraction, and customizable report templates (PDF/CSV/XLSX export). All instrument parameters, raw spectra, processing logs, and user actions are timestamped and stored with immutable audit trails. Remote diagnostics and firmware updates are supported via secure HTTPS connection; data export conforms to LIMS-compatible formats (ASTM E1381, ASTM E1482).

Applications

• Environmental laboratories: Quantification of regulated metals in drinking water (EPA 200.7), wastewater (ISO 11885), sediments (EN 13656), and airborne particulates (EN 14902).
• Agricultural & food safety: Multi-element screening in fertilizers, feedstuffs, infant formula, and canned goods per Codex Alimentarius standards.
• Pharmaceutical QA/QC: Elemental impurity testing (ICH Q3D) in active pharmaceutical ingredients (APIs) and excipients.
• Industrial process control: Monitoring catalyst poisons (e.g., V, Ni, Na) in crude oil fractions; alloy verification in metallurgical scrap.
• Academic research: Isotope ratio-independent speciation studies using spectral deconvolution algorithms and kinetic plasma monitoring.

FAQ

What plasma viewing configuration does the SPECTRO GREEN use?
It employs Vertical Synchronized Dual-View (DSOI), not radial or axial viewing—providing superior sensitivity for refractory elements while maintaining robustness against matrix-induced signal drift.
Is the instrument suitable for high-salt samples without dilution?
Yes. The LDMOS generator and DSOI optical design enable direct analysis of samples with up to 25% total dissolved solids, including seawater, brine extracts, and industrial effluents.
Does the system support regulatory-compliant data handling?
Yes. SPECTRO ICP Analyzer Pro includes electronic signatures, audit trails, and configurable user access levels aligned with FDA 21 CFR Part 11 and ISO/IEC 17025 requirements.
What is the typical warm-up time before analysis?
Plasma ignition and stabilization require approximately 10 minutes; no external chiller or coolant circulation is needed due to the air-cooled LDMOS generator.
Can the instrument be integrated into a laboratory information management system (LIMS)?
Yes. Native support for ASTM E1381-compliant data export and optional OPC UA connectivity enables seamless bidirectional integration with major LIMS platforms.