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New Spectroscopic Techniques Offer Breakthrough in Analyzing Ancient Chinese Wall Paintings
October 29th 2024This new study examines how spectroscopic techniques, such as attenuated total reflection Fourier transform infrared spectroscopy (ATR FT-IR), ultraviolet–visible–near-infrared (UV-Vis-NIR) spectroscopy, and Raman spectroscopy, were used to analyze the pigments in ancient Chinese wall paintings.
Best of the Week: SciX 2024, Environmental Analysis, Advancing Forensic Science
October 25th 2024Top articles published this week include insights into machine learning and chemometrics presented at the SciX Conference, a compilation of recent studies in environmental analysis, and a news article highlighting the latest research in mineral classification.
Emerging Leader Highlights Innovations in Machine Learning, Chemometrics at SciX Awards Session
October 23rd 2024Five invited speakers joined Joseph Smith, the 2024 Emerging Leader in Molecular Spectroscopy, on stage to speak about trends in hyperspectral imaging, FT-IR, surface enhanced Raman spectroscopy (SERS), and more during the conference in Raleigh.
Best of the Week: Hyperspectral Imaging, ICP-MS Analysis of Geological Samples, Product Roundup
October 18th 2024Top articles published this week include an article about hyperspectral imaging in human skin research, a peer-reviewed article about analyzing geological samples using atomic spectroscopy techniques, and an equipment roundup piece about the latest products in the industry.
Geographical Traceability of Millet by Mid-Infrared Spectroscopy and Feature Extraction
October 18th 2024The study developed an effective mid-infrared spectroscopic identification model, combining principal component analysis (PCA) and support vector machine (SVM), to accurately determine the geographical origin of five types of millet with a recognition accuracy of up to 99.2% for the training set and 98.3% for the prediction set.
Analyzing Mercury Isotopes: A SciX Interview with Frank Vanhaecke, Part 2
October 17th 2024In this preview to the upcoming SciX 2024 conference next week, Spectroscopy sat down with Frank Vanhaecke to discuss about his educational background and what he is looking forward to about the upcoming conference.
Simultaneous Determination of 50 Elements in Geological Samples by ICP-MS Combined with ICP-OES
October 15th 2024A method combining inductively coupled plasma–mass spectrometry (ICP-MS) with inductively coupled plasma–optical emission spectrometry (ICP-OES) was developed for multielement determination of 50 species of major, minor, micro, and trace, rare earth, and rare elements in geological samples.
The Big Review II: The Physical Mechanism of Infrared Absorbance and Peak Types
October 10th 2024In the second installment of “The Big Review,” we discuss the physical mechanism behind how molecules absorb infrared (IR) radiation. Because light can be thought of as a wave or a particle, we have two equivalent pictures of IR absorbance. We also discuss the quantum mechanics behind IR absorbance, and how this leads to the different peak types observed in IR spectrum.