Confident Data Collection in the QC Lab: Spectrometer Performance Assurance

Spectrometer Performance Assurance with the Thermo Scientific Nicolet iS20

Importance of the topic

Quality control (QC) and quality assurance (QA) laboratories depend on spectroscopic measurements that are demonstrably reliable, traceable and auditable. Instrument performance verification is a prerequisite for defensible identity and purity assessments of raw materials and finished products, and it is increasingly mandated by regulatory and legal frameworks. Integrated, automated validation tools reduce operator burden, minimize downtime, and strengthen confidence in spectral evidence used for product release, supplier disputes, forensic testimony or regulatory filings.

Objectives and overview of the application note

This application note describes the design rationale and implemented features of the Thermo Scientific Nicolet iS20 mid-level FTIR spectrometer that make instrument validation and routine system performance verification (SPV) a core capability. It outlines how embedded traceable standards, automated SPV routines, system suitability tests and optional ValPro validation software address needs of regulated laboratories and routine QC environments.

Used instrumentation

The note discusses the following instrumentation and software ecosystem:

• Thermo Scientific Nicolet iS20 FTIR spectrometer (mid-level, factory‑equipped for validation)
• Internal validation wheel containing NIST-traceable polystyrene film and NPL-traceable NG11 glass
• OMNIC software with System Performance Verification (SPV) tools and QCheck functionality
• Smart Accessories family including the Smart iTX ATR accessory
• ValPro validation package (optional add-on) providing DQ, IQ, OQ, PQ and pharmacopeia-compliant testing

Physical and operational features noted include sealed and desiccated windows, two regenerable desiccant packs, compatibility with instrument purging, and easy access to the source without removing the sample compartment cover.

Methodology and embedded verification workflows

The SPV concept is embedded in both hardware (internal validation wheel) and software (OMNIC SPV suite). Key elements include:

• SPV shield (visual status indicator) — green when all checks are current and passed, yellow to warn of approaching expiration, red when checks have expired or failures occurred.
• SPV control panel — monitors Instrument Status, Scheduled Maintenance, System Suitability, Performance Verification and Spectral Quality; records dates and expiration windows for each function.
• Performance Verification (PV) — automated ASTM-based tests executed using the internal wheel (polystyrene and NG11 glass) to verify wavenumber accuracy, intensity response and instrument noise without an external accessory present.
• System Suitability — configurable by the laboratory to use representative real sample standards (example: LDPE on diamond ATR) to check contamination, throughput, signal-to-noise in critical regions, peak positions and peak intensities against stored references.
• QCheck — OMNIC function for rapid spectral comparison and semi-quantitative checks to complement suitability testing and increase sensitivity to sample-specific features.
• Audit trail integration — SPV status and dates are written into experiment metadata so each spectrum carries verification details for traceability.

The ValPro package extends PV capability with trend-charting, pharmacopeial test sets (ASTM, Chinese, European, Japanese and US Pharmacopeias) and formal DQ/IQ/OQ/PQ documentation for heavily regulated laboratory environments.

Main results and discussion

The described system delivers several practical outcomes for QC laboratories:

• Out-of-the-box readiness for audited environments because each Nicolet iS20 ships with traceable internal standards; no additional hardware purchases are required for baseline PV.
• Automation of PV and suitability checks reduces operator dependence and the risk of human error associated with ‘‘open cockpit’’ spectrometer operation.
• Customizable system suitability using representative materials (e.g., LDPE on ATR) ensures that instrument responsiveness is validated for the specific sample types encountered in a lab, not only against generic standards.
• Continuous monitoring and date-based alerting (SPV shield) support scheduled maintenance and timely corrective actions, improving uptime and data integrity.
• Audit-ready metadata captured with each measurement strengthens defensibility of spectral data in regulatory, supplier dispute or forensic contexts.

Figures described in the note illustrate the internal validation wheel, the SPV shield and control panel, the system suitability configuration window (LDPE example), a performance verification report and a procedural flow chart that connects checks, decisions and corrective actions.

Benefits and practical applications

The integrated SPV capability benefits laboratories by:

• Providing a verification workflow that is quick, repeatable and documented, aligning with QA/QC SOPs.
• Minimizing additional training and specialized operator knowledge required to perform routine performance checks.
• Supporting compliance efforts through built-in traceable standards, pharmacopeial test options (via ValPro), and audit trails.
• Enabling method confidence for sample comparison, spectral library matching and semi‑quantitative screening across industries such as pharmaceuticals, food & beverage, packaging QC and forensics.

Future trends and potential applications

Based on the capabilities discussed, likely future directions include:

• Broader adoption of embedded, automated verification tools across spectrometer product lines to meet rising regulatory expectations.
• Enhanced connectivity of verification logs with laboratory information management systems (LIMS) and centralized QA dashboards for enterprise-level oversight.
• Expansion of sample-aware suitability tests and machine-learning assisted alerts that predict instrument drift or contamination before specification failures occur.
• Increased use of instrument-embedded validation for remote auditing and digital evidence chains in regulatory and forensic workflows.

Conclusion

The Nicolet iS20 architecture integrates traceable physical standards and software-driven verification to make instrument performance assurance an intrinsic part of routine FTIR operation. Automation of ASTM-based PV tests, laboratory-configurable system suitability, QCheck screening and optional ValPro validation provide a comprehensive verification strategy that reduces operator dependence, strengthens auditability and improves confidence in QC decisions. These features help laboratories meet regulatory expectations and reduce risk associated with disputed analytical outcomes.

Reference

Thermo Fisher Scientific. Application Note TN51508_E 0520 M. Thermo Scientific Nicolet iS20: Spectrometer Performance Assurance. 2020.