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Fast Quality Evaluation of Bulk Polymers and Products Using FT-NIR SpectroscopyFT-NIR spectroscopy for the quantitative determination of key physical parameters in bulk polymers and products, including density and melt index (MI). These measurements can often be made with little or no sample preparation.
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The fNIRS Glossary Project: A Community-Sourced Glossary of Key TermsEstablished to develop a community-sourced glossary covering key functional near-infrared spectroscopy (fNIRS) terms, including those related to the continuous-wave (CW), frequency-domain (FD), and time-domain (TD) NIRS techniques, the fNIRS Glossary Project features over 300 terms categorized into six key domains: analysis, experimental design, hardware, neuroscience, mathematics, and physics. It also includes abbreviations, symbols, synonyms, references, alternative definitions, and figures where relevant.
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DNA Adductomic Analysis by Data-Independent Mass SpectrometryA new type of analysis called “wide-selected ion monitoring (SIM)/MS2” scanning, is capable of screening for a wide range of DNA adducts (chemical modifications to genomic DNA). This method has successfully identified DNA adducts from carcinogen exposures and oxidative stress in human prostate and kidney tissues.
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DNA Adductomic Analysis by Data-Independent Mass SpectrometryA new type of analysis called “wide-selected ion monitoring (SIM)/MS2” scanning, is capable of screening for a wide range of DNA adducts (chemical modifications to genomic DNA). This method has successfully identified DNA adducts from carcinogen exposures and oxidative stress in human prostate and kidney tissues.
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DNA Adductomic Analysis by Data-Independent Mass SpectrometryA new type of analysis called “wide-selected ion monitoring (SIM)/MS2” scanning, is capable of screening for a wide range of DNA adducts (chemical modifications to genomic DNA). This method has successfully identified DNA adducts from carcinogen exposures and oxidative stress in human prostate and kidney tissues.
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Targeted Metabolomics Analysis of Type 2 Diabetes Serum Samples Using Mass Spectrometry and a Standardized Quantitative MethodAn important advantage of standardized methods is that they enable comparability between laboratories and across studies. In this work, the author used a standardized targeted kit to demonstrate the accuracy, sensitivity, and reproducibility of the approach, analyzing serum samples obtained from type 2 diabetes study subjects and healthy controls.
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Review of the 66th Conference on Mass Spectrometry and Allied TopicsOur annual review of the ASMS national conference. This year’s event was held June 3–7 in San Diego, California.
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Rapid Classification of Beef Aroma Quality Using SIFT-MSApplication of multivariate statistical analysis to a combined data set demonstrated that SIFT-MS discriminates premium quality beef from eight sensory defects, and, therefore, could be applied as an instrumental grading tool, obviating sensory panel grading.
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Rapid Classification of Beef Aroma Quality Using SIFT-MSApplication of multivariate statistical analysis to a combined data set demonstrated that SIFT-MS discriminates premium quality beef from eight sensory defects, and, therefore, could be applied as an instrumental grading tool, obviating sensory panel grading.
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High-Throughput Analysis of Volatile Compounds in Air, Water, and Soil Using SIFT-MSFor the BTEX compounds, detection limits in the single-digit parts-per-billion concentration range (by volume) are readily achievable within seconds using selected ion flow tube mass spectrometry (SIFT-MS), because sample analysis is achieved without chromatography, preconcentration, or drying.
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Standoff, Wide-Area Explosive and Narcotic Detection Using Shortwave Infared Hyperspectral ImagingShortwave infrared hyperspectral imaging (SWIR HSI) shows great potential in the targeting and identification of explosive and narcotic materials in complex scenes where the target concentration is low. Tunable filter–based SWIR HSI sensors can be configured to use either single-bandpass or multiple-bandpass wavelength tuning to enable hazardous material detection in stationary, moving sensor, or moving target scenarios.
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External Reflection Analysis of Surface CoatingsExternal reflection using IR spectroscopy is effective for examining paintings, polymer-coated metals like soda can coatings, and even bulk polymers. Shiny, metallic surfaces provide a strong specular reflection spectrum that matches standard absorbance spectra very well. Less-reflective surfaces, like dark plastics, may require additional software processing.
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Standoff, Wide-Area Explosive and Narcotic Detection Using Shortwave Infared Hyperspectral ImagingShortwave infrared hyperspectral imaging (SWIR HSI) shows great potential in the targeting and identification of explosive and narcotic materials in complex scenes where the target concentration is low. Tunable filter–based SWIR HSI sensors can be configured to use either single-bandpass or multiple-bandpass wavelength tuning to enable hazardous material detection in stationary, moving sensor, or moving target scenarios.
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FT-IR Spectroscopy for Identification of Biological Stains for Forensic PurposesFor analyzing unknown biological stains in a forensic setting, Fourier transform infrared spectroscopy has many advantages. It can provide confirmatory identification of the fluid type, can estimate the stain’s age, discriminate species, and can be used on samples found on various substrates and exposed to various environmental conditions.
Latest:
Standoff, Wide-Area Explosive and Narcotic Detection Using Shortwave Infared Hyperspectral ImagingShortwave infrared hyperspectral imaging (SWIR HSI) shows great potential in the targeting and identification of explosive and narcotic materials in complex scenes where the target concentration is low. Tunable filter–based SWIR HSI sensors can be configured to use either single-bandpass or multiple-bandpass wavelength tuning to enable hazardous material detection in stationary, moving sensor, or moving target scenarios.
Latest:
Standoff, Wide-Area Explosive and Narcotic Detection Using Shortwave Infared Hyperspectral ImagingShortwave infrared hyperspectral imaging (SWIR HSI) shows great potential in the targeting and identification of explosive and narcotic materials in complex scenes where the target concentration is low. Tunable filter–based SWIR HSI sensors can be configured to use either single-bandpass or multiple-bandpass wavelength tuning to enable hazardous material detection in stationary, moving sensor, or moving target scenarios.
Latest:
FT-IR Spectroscopy for Identification of Biological Stains for Forensic PurposesFor analyzing unknown biological stains in a forensic setting, Fourier transform infrared spectroscopy has many advantages. It can provide confirmatory identification of the fluid type, can estimate the stain’s age, discriminate species, and can be used on samples found on various substrates and exposed to various environmental conditions.
Latest:
Standoff, Wide-Area Explosive and Narcotic Detection Using Shortwave Infared Hyperspectral ImagingShortwave infrared hyperspectral imaging (SWIR HSI) shows great potential in the targeting and identification of explosive and narcotic materials in complex scenes where the target concentration is low. Tunable filter–based SWIR HSI sensors can be configured to use either single-bandpass or multiple-bandpass wavelength tuning to enable hazardous material detection in stationary, moving sensor, or moving target scenarios.
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Advancing Forensic Analyses with Raman SpectroscopyIn recent years, there have been significant advances in the application of vibrational spectroscopy to the analysis of forensic samples. Igor K. Lednev, a professor in the Department of Chemistry at the University at Albany, the State University of New York, has been developing the use of Raman spectroscopy for a variety of forensic applications, including the determining the age of blood stains and linking gunshot residues to specific ammunition–firearm combinations. He recently spoke to Spectroscopy about his work.
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Analysis of alloys of gold alloysThis application note demonstrates the analysis of gold alloys by EDXRF for the determination of gold and silver content, and of base metals and other alloying metals.
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An eye into your process – Specac process flow cells inspire confidence on the frontline of your PAT solution.Discover why Specac is your trusted partner for process analytical technology, especially for challenging liquid and gas samples. Our robust solutions ensure reliable process control, enhancing safety, reducing waste, and supporting the Green transition in industrial chemistry.
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ICP-MS Analysis of Noble Metals at Low Levels in Geological Reference Materials and OresThis study reveals the potential of triple-quadrupole ICP-MS for reliable quantification of noble metals at ultratrace levels even in difficult matrices.The effective use of reactive gases for interference removal and a thorough and effective protocol for sample preparation and handling are essential.
Latest:
ICP-MS Analysis of Noble Metals at Low Levels in Geological Reference Materials and OresThis study reveals the potential of triple-quadrupole ICP-MS for reliable quantification of noble metals at ultratrace levels even in difficult matrices.The effective use of reactive gases for interference removal and a thorough and effective protocol for sample preparation and handling are essential.
Latest:
ICP-MS Analysis of Noble Metals at Low Levels in Geological Reference Materials and OresThis study reveals the potential of triple-quadrupole ICP-MS for reliable quantification of noble metals at ultratrace levels even in difficult matrices.The effective use of reactive gases for interference removal and a thorough and effective protocol for sample preparation and handling are essential.
