Explore how UV/VIS detection works in HPLC, compare fixed-, variable-, multi-wavelength and diode array detectors, and learn their key strengths, limitations and applications.

A practical guide to GC column troubleshooting. Learn how to identify and resolve peak tailing, loss of resolution, ghost peaks, baseline drift, sensitivity issues, and retention time shifts.

Learn how NIST MS Interpreter connects accurate-mass MS/MS fragments with molecular structure, enabling substructure assignment, ppm evaluation, candidate modification, and improved unknown identification.

Injecting water into a GC system can cause backflash, poor vaporization, detector issues, and stationary phase degradation. Learn how to minimize these risks with the right column and injection setup.

Explore the key performance criteria of HPLC detectors, including sensitivity, selectivity, sampling rate, noise, drift, dynamic range, and practical guidance for choosing the right LC detector.

Learn how extracted ion chromatograms support LC–MS/MS identification, quantitation, isotope validation, and troubleshooting in the NIST XIC Analyzer workflow.

Explore the principal HPLC detection technologies, from UV and fluorescence to mass spectrometry, electrochemical, aerosol, and bulk-property detectors, and learn how to select the right option.

Comprehensive two-dimensional gas chromatography (GC×GC) greatly expands separation power for complex mixtures. Explore its principles, applications, limitations, and future trends.

Learn how to recognize and search in-source fragmentation spectra in NIST26 using chromatogram results, Score (Unfiltered), and MS/MS Library Search for compound identification.

How small should measurement uncertainty be? Eurachem explains how target measurement uncertainty helps laboratories ensure results are fit for purpose and support reliable decisions.