Authors
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.
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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.
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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.
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Multisource Correlation Analysis (MuSCA) Applied to Raman Spectroscopy for Biochemical AnalysisJames Piret, and Robin Turner, of Michael Smith Laboratories (Vancouver, BC Canada) and the University of British Columbia (UBC) have been exploring the benefits of extracting and displaying correlated spectrometric and non-spectrometric variables with a proposed method called multisource correlation analysis (MuSCA). Their work has uncovered several advantages of using Raman spectroscopy for these applications. Here, they discuss their efforts to develop an approach that permitted the integration of diverse biochemical information with measured spectra for co-analysis to characterize the spectra and take advantage of the available spectral information.
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LIBS-Based Imaging: Recent Advances and Future DirectionsLIBS-based imaging has a broad range of applications. Here, we demonstrate those capabilities with examples from paleoclimate research and toxicology studies.
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High-Resolution High-Speed LIBS MicroscopyThe use of high-resolution LIBS imaging requires the reduction of acquisition time. The authors describe a new developed system that accomplishes this goal and can be used in various applications where elemental composition and elemental distribution analysis is required.
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LIBS-Based Imaging: Recent Advances and Future DirectionsLIBS-based imaging has a broad range of applications. Here, we demonstrate those capabilities with examples from paleoclimate research and toxicology studies.
Latest:
LIBS-Based Imaging: Recent Advances and Future DirectionsLIBS-based imaging has a broad range of applications. Here, we demonstrate those capabilities with examples from paleoclimate research and toxicology studies.
Latest:
LIBS-Based Imaging: Recent Advances and Future DirectionsLIBS-based imaging has a broad range of applications. Here, we demonstrate those capabilities with examples from paleoclimate research and toxicology studies.
Latest:
LIBS-Based Imaging: Recent Advances and Future DirectionsLIBS-based imaging has a broad range of applications. Here, we demonstrate those capabilities with examples from paleoclimate research and toxicology studies.
Latest:
LIBS-Based Imaging: Recent Advances and Future DirectionsLIBS-based imaging has a broad range of applications. Here, we demonstrate those capabilities with examples from paleoclimate research and toxicology studies.
Latest:
LIBS-Based Imaging: Recent Advances and Future DirectionsLIBS-based imaging has a broad range of applications. Here, we demonstrate those capabilities with examples from paleoclimate research and toxicology studies.
Latest:
A Label- and Enzyme-Free Fluorescent Method for the Rapid and Simple Detection of Hg2+ in Cigarettes Using G-Triplexes as the Signal ReporterA novel method was developed for detecting Hg2+ in tobacco, with potential application to mercury detection in environmental water samples.
Latest:
A Label- and Enzyme-Free Fluorescent Method for the Rapid and Simple Detection of Hg2+ in Cigarettes Using G-Triplexes as the Signal ReporterA novel method was developed for detecting Hg2+ in tobacco, with potential application to mercury detection in environmental water samples.
Latest:
A Label- and Enzyme-Free Fluorescent Method for the Rapid and Simple Detection of Hg2+ in Cigarettes Using G-Triplexes as the Signal ReporterA novel method was developed for detecting Hg2+ in tobacco, with potential application to mercury detection in environmental water samples.
Latest:
A Label- and Enzyme-Free Fluorescent Method for the Rapid and Simple Detection of Hg2+ in Cigarettes Using G-Triplexes as the Signal ReporterA novel method was developed for detecting Hg2+ in tobacco, with potential application to mercury detection in environmental water samples.
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Key Points to Remember When Using Internal Standards for Sample Analysis by ICP-OESUsing internal standards is a common technique to correct for variations in sample matrices and the effect this has on analyte intensities. There are several basic criteria to be considered when using internal standards: selection of appropriate internal standards, the concentration added to the solutions analyzed, setting up in the correct view (axial vs. radial), how to introduce the internal standard to the solutions to be analyzed, and evaluating the resulting data. Each of these topics are considered and suggestions presented.
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Analysis of Packaging Material Using Raman and FT-IRThe combination of FT-IR and Raman analyses of sophisticated packaging systems using laminates, is demonstrated.
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Characterization of Lithium Ore Using Laser-Induced Breakdown Spectroscopy (LIBS)This application note demonstrates the uses of LIBS imaging to provide highly selective and sensitive means of gaining this information from lithium-bearing rocks.
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Looking Below the Surface of Breast Tissue During SurgeryIn this article, we present a method that provides prompt detection of the presence of cancer cells inside the 2-mm margin of tissue surrounding the tumor after excision using spatially offset Raman spectroscopy (SORS). SORS was developed to detect subtle changes in soft tissue spectra in the 100–2000 ?m range and tested on excised breast tissues. The results display a very high specificity and sensitivity (100% and 95%, respectively) of classification between positive and negative tumor margins. SORS is a clinically feasible method, suitable for the real-time, intraoperative assessment of tumor margins at the micrometer level.
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Advances in Trace Element Solid Sample Analysis: Laser Ablation Laser Ionization TOF Mass Spectrometry (LALI-TOF-MS)Recent advances in laser ablation laser ionization TOF mass spectrometry (LALI-TOF-MS) are allowing laboratories to reach required limits of quantitation for trace impurities in solid materials by direct analysis, while avoiding common limitations of other techniques.
