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Latest:
Ionization Efficiency for Environmentally Relevant Compounds Using Atmospheric Pressure Photoionization Versus Electrospray IonizationIn this study, atmospheric pressure photoionization (APPI) is compared to the default ionization method, electrospray ionization (ESI), for solution-phase samples. These mass spectrometry methods are compared and optimized relative to artificial wastewater for the detection and quantitation of pharmaceuticals frequently found as environmental contaminants.
Latest:
Ionization Efficiency for Environmentally Relevant Compounds Using Atmospheric Pressure Photoionization Versus Electrospray IonizationIn this study, atmospheric pressure photoionization (APPI) is compared to the default ionization method, electrospray ionization (ESI), for solution-phase samples. These mass spectrometry methods are compared and optimized relative to artificial wastewater for the detection and quantitation of pharmaceuticals frequently found as environmental contaminants.
Latest:
Ionization Efficiency for Environmentally Relevant Compounds Using Atmospheric Pressure Photoionization Versus Electrospray IonizationIn this study, atmospheric pressure photoionization (APPI) is compared to the default ionization method, electrospray ionization (ESI), for solution-phase samples. These mass spectrometry methods are compared and optimized relative to artificial wastewater for the detection and quantitation of pharmaceuticals frequently found as environmental contaminants.
Latest:
Ionization Efficiency for Environmentally Relevant Compounds Using Atmospheric Pressure Photoionization Versus Electrospray IonizationIn this study, atmospheric pressure photoionization (APPI) is compared to the default ionization method, electrospray ionization (ESI), for solution-phase samples. These mass spectrometry methods are compared and optimized relative to artificial wastewater for the detection and quantitation of pharmaceuticals frequently found as environmental contaminants.
Latest:
Ionization Efficiency for Environmentally Relevant Compounds Using Atmospheric Pressure Photoionization Versus Electrospray IonizationIn this study, atmospheric pressure photoionization (APPI) is compared to the default ionization method, electrospray ionization (ESI), for solution-phase samples. These mass spectrometry methods are compared and optimized relative to artificial wastewater for the detection and quantitation of pharmaceuticals frequently found as environmental contaminants.
Latest:
Adsorbate-Induced Morphological Changes of PVD-Deposited Nano Island Film SERS SubstratesThe morphology and gap spacing of nano-island film SERS substrates are key factors defining the properties of analyte‒substrate interactions. These results of the study described here have implications for understanding signal variation in SERS and in designing future SERS assays.
Latest:
Raman Scattering for Label-Free Chemical ImagingAn inside look at the fundamentals of Raman microscopy and how Raman can be utilized in chemical imaging and analysis, from its inception to modern applications.
Latest:
High Performance ICP-OES Sample Introduction: How to Choose and Use the Best Nebulizer for Your AnalysisNebulizer selection is a critical but often overlooked aspect of inductively coupled plasma–optical emission spectroscopy (ICP-OES) analyses. There are many different nebulizers available for ICP-OES, and choosing the optimal one can be confusing and difficult. To achieve peak performance from your ICP, it is essential to choose the proper nebulizer based on your sample types in addition to any necessary accessories to maintain long-term performance. In this study, we compare the performance of Glass Expansion’s most popular concentric nebulizer designs for ICP-OES applications as well as a parallel-path nebulizer from another vendor, providing a complete selection guide based on performance and design.
Latest:
Good Water Practices for Reliable LC–MS and ICP-MS AnalysesIn this webcast, Dr. Estelle Riche will discuss how water is purified for the most sensitive analytical techniques, will provide guidance on how to select the optimal water purification solution, and will give tips on preventing water contamination for optimal experimental results. Live: Tuesday, Dec. 3, 2019 at 11am EST | 8am PST | 4pm GMT | 5pm CET On demand available after final airing Dec. 3, 2020 Register free
Latest:
Leading the Way in Atomic Spectroscopy: An Interview with PerkinElmerLearn about PerkinElmer’s key innovations for trace elemental analysis.
Latest:
Chromium Speciation in Toys with the NexSAR HPLC-ICP-MSThis work shows a method for the measurement of hexavalent chromium in different toy material categories in accordance with method EN 71-3 Category II, leveraging PerkinElmer's NexSARTM HPLC-ICP-MS speciation solution.
Latest:
Particle Count and Elemental Analysis of In-Service Lubricants in One RunThis application note discusses the hyphenation of a new in-line particle counter (PerkinElmer LPC 500TM) to an ICP-OES (PerkinElmer Avio® 500) for combined particle counting and wear metals analysis of in-service oils in a single run.
Latest:
Chromium Speciation in Toys with the NexSAR HPLC-ICP-MSThis work shows a method for the measurement of hexavalent chromium in different toy material categories in accordance with method EN 71-3 Category II, leveraging PerkinElmer's NexSARTM HPLC-ICP-MS speciation solution.
Latest:
Particle Count and Elemental Analysis of In-Service Lubricants in One RunThis application note discusses the hyphenation of a new in-line particle counter (PerkinElmer LPC 500TM) to an ICP-OES (PerkinElmer Avio® 500) for combined particle counting and wear metals analysis of in-service oils in a single run.
Latest:
High-Precision Analysis of Battery Materials with a Truly Simultaneous ICP-OESThis application note shows the ability of PerkinElmer's Avio® 500 ICP-OES to achieve RSDs < 0.1% for matrix elements in simulated battery materials, thanks to its ability to perform true simultaneous measurements.
Latest:
Drinking Water Analysis by ICP-MS using High Throughput Sample IntroductionThis work demonstrates a high throughput method for drinking water testing following EPA 200.8 leveraging PerkinElmer's NexION® HTS sample introduction module, delivering 3-5 times faster sample-to-sample analysis.
Latest:
Multi-Quadrupole ICP-MS: Pushing Limits of Detection to the Next DecimalFor a number of elements, spectroscopic interferences can have a significant impact on the ability to achieve low detection limits in ICP-MS. We investigate the mechanisms in multi-quadrupole ICP-MS that are designed to remove these interferences.
Latest:
Quantum Cascade Laser Infrared Microscopy and 2D IR Correlation Spectroscopy Improves Crystallization Screening of a Protein ComplexWell-diffracting crystals are essential for X-ray diffraction of crystallized protein for structural determination. A quantum cascade laser (QCL) infrared microscope is used to determine protein aggregation, distinct from self-association, for the success of the crystallization effort.
Latest:
Quantum Cascade Laser Infrared Microscopy and 2D IR Correlation Spectroscopy Improves Crystallization Screening of a Protein ComplexWell-diffracting crystals are essential for X-ray diffraction of crystallized protein for structural determination. A quantum cascade laser (QCL) infrared microscope is used to determine protein aggregation, distinct from self-association, for the success of the crystallization effort.
Latest:
Application of WDXRF and FT-IR for Human Tooth AnalysisIn this study, WDXRF and FT-IR are used to analyze a tooth sample of a renal patient, and to compare the results to healthy patients. The quantities of multiple elements are reported using the XRF technique, and FT-IR spectroscopy is used to extract relevant information about the molecular contents of the sample with the important absorption bands identified.
Latest:
Application of WDXRF and FT-IR for Human Tooth AnalysisIn this study, WDXRF and FT-IR are used to analyze a tooth sample of a renal patient, and to compare the results to healthy patients. The quantities of multiple elements are reported using the XRF technique, and FT-IR spectroscopy is used to extract relevant information about the molecular contents of the sample with the important absorption bands identified.
Latest:
EDX and LIBS Studies on Gallstones Using Partial Least Squares Discriminant Analysis (PLS-DA)Understanding gallstone formation requires examining their elemental composition. Here, EDS and LIBS were used with PLS-DA to quantify elements found in human gallstones.
Latest:
Application of WDXRF and FT-IR for Human Tooth AnalysisIn this study, WDXRF and FT-IR are used to analyze a tooth sample of a renal patient, and to compare the results to healthy patients. The quantities of multiple elements are reported using the XRF technique, and FT-IR spectroscopy is used to extract relevant information about the molecular contents of the sample with the important absorption bands identified.
Latest:
Rick Russo Speaks at University at Buffalo as Part of SAS Tour Speaker SeriesOn Tuesday and Wednesday, November 4 and 5, 2019, the State University of New York at Buffalo Chapter of the Society for Applied Spectroscopy (SAS) had the pleasure of hosting Dr. Rick Russo as part of the 2019 SAS Tour Speaker Series.
Latest:
Is Your Spectrophotometer Still “Pharma Compliant”? A Review of the Latest USP ChapterThe U.S. and European Pharmacopeia chapters covering ultraviolet and visible spectroscopy have recently undergone significant revision, leading to important differences between them. We explain how those changes affect the steps you need to take to qualify your instruments.
Latest:
Book Review: Spectroscopy: Principles and Instrumentation, by Mark F. VithaThis slender volume belongs on the bookshelf of every experimental spectroscopist, and offers an alternative to a large, comprehensive textbook for an undergraduate instrumental chemistry course.
Latest:
Improvement of the Limits of Detection for P, S, and Ca Nanoparticle Size in the Absence of Dissolved Analyte Using a Mixed-Gas Plasma in Single-Particle Inductively Coupled Plasma–Mass SpectrometryThis study shows, for the first time, that limits of detection (LOD) can be improved for P, S and Ca nanoparticles by the addition of N2 to the plasma flow for single-particle inductively coupled plasma–mass spectrometry (spICP-MS). The work also examined the relative LOD differences using Ar-N2 and Ar-N2-H2 mixed-gas plasmas.
Latest:
High Performance ICP-OES Sample Introduction: How to Choose and Use the Best Nebulizer for Your AnalysisNebulizer selection is a critical but often overlooked aspect of inductively coupled plasma–optical emission spectroscopy (ICP-OES) analyses. There are many different nebulizers available for ICP-OES, and choosing the optimal one can be confusing and difficult. To achieve peak performance from your ICP, it is essential to choose the proper nebulizer based on your sample types in addition to any necessary accessories to maintain long-term performance. In this study, we compare the performance of Glass Expansion’s most popular concentric nebulizer designs for ICP-OES applications as well as a parallel-path nebulizer from another vendor, providing a complete selection guide based on performance and design.
Latest:
Raman and FTIR Microscopy in Perfect HarmonyShimadzu’s AIRsight infrared Raman microscope delivers more accurate results and improves operational efficiency by enabling both infrared and Raman measurements from the same position without moving the sample. This combined system saves valuable bench space while providing for easier operation with software that easily switches between infrared and Raman measurements via the same window.
