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The following articles are the most accessed digital object identifier (DOI) manuscripts for Spectroscopy and LCGC International during the month of July 2026. Nine articles are ranked here by DOI page views; a tenth entry in the July report (135 views) was recorded against the bare journal-level DOI rather than an individual article and is therefore not attributable to a single manuscript.

How can inductively coupled plasma–mass spectrometry (ICP-MS) detect particles that were missed in initial analyses?

An upcoming poster presentation set to take place at the American Chemical Society (ACS) Fall 2026 Meeting will explore how spectroscopy is being used to distinguish different roasted coffee types.

Can spectroscopy make real-time monitoring in nuclear and radioisotope facilities faster and safer?

An upcoming talk at the American Chemical Society (ACS) 2026 Fall Meeting will address a key question in membrane biophysics.

Welcome to “Analytically Speaking,” the podcast from LCGC International and Spectroscopy. Here in Episode #47, podcast host Dr. Jerry Workman speaks with Dr. Thomas Mayerhöfer from the Leibniz Institute of Photonic Technology (Leibniz IPHT) in Jena, Germany, and Friedrich Schiller University Jena, about “the other half” of the Beer–Lambert law: dispersion theory, the concentration law of the refractive index, and refractive-index and complex-valued chemometrics. Dr. Mayerhöfer, who first joined the podcast for Episode #29 on the history and theory of infrared spectroscopy, returns to explain how Beer’s law falls out of dispersion theory as a limiting case, why the refractive index obeys a concentration law of its own that was mainstream physical chemistry before about 1920 (and helped confirm the Kekulé structure of benzene), and how new refractive-index and complex-valued chemometric methods — in combination with PLS — can outperform conventional absorbance-based calibration by up to an order of magnitude.

Top articles published this week include a preview of an upcoming presentation at the American Chemical Society (ACS) 2026 Fall Meeting in Chicago, Illinois.

Laser-induced breakdown spectroscopy (LIBS) has moved from the laboratory to the field, offering rapid, in situ elemental analysis of minerals, rocks, soils, and meteorites with minimal sample preparation. This practical tutorial covers LIBS instrumentation, field sampling best practices, quantification methods, common pitfalls, and emerging applications in geoscience.

For 170 years, spectroscopists have built quantitative analysis on only one number pulled from every spectrum they ever recorded, discarding its inseparable twin. New dispersion-theory and complex-valued chemometric methods recover that missing half, the refractive index, and in favorable systems cut calibration error by as much as an order of magnitude.

Nearly every diabetic on earth still stabs a finger to measure their blood sugar, but a small army of lasers, infrared beams, and machine-learning algorithms is quietly plotting to end that ritual for good. This review tracks the photons chasing glucose through skin, from near-infrared reflectance to Raman fingerprints, and asks why the “needle-free” promise keeps slipping just out of reach.

How is the water quality in Biscayne Bay? A talk at the American Chemical Society (ACS) Fall 2026 Meeting will explore this.

A technical white paper deriving the classical least squares (CLS) and weighted least squares (WLS) models and showing how generalized least squares (GLS) and extended least squares (ELS) extend CLS to provide clutter suppression for characterized interference signals in spectroscopic and hyperspectral measurements.

Handheld spectroscopy tools are being used to identify food fraud.