3,176 results match your criteria Applied spectroscopy[Journal]


EXPRESS: Ultraviolet Spectral Analysis and Quantitative Detection of CFN in CFN/CO Gas Mixture.

Appl Spectrosc 2019 Feb 8:3702819833702. Epub 2019 Feb 8.

Electric Power Research Institute, China Southern Power Grid.

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http://dx.doi.org/10.1177/0003702819833702DOI Listing
February 2019

EXPRESS: Elemental Mapping of Lithium Diffusion in Doped Plant Leaves Using Laser-Induced Breakdown Spectroscopy (LIBS).

Appl Spectrosc 2019 Jan 30:3702819830394. Epub 2019 Jan 30.

E O Lawrence Berkeley National Laboratory.

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http://dx.doi.org/10.1177/0003702819830394DOI Listing
January 2019
1.875 Impact Factor

EXPRESS: Structural and Optical Characteristics of Aqueous Solutions of Acetic Acid.

Appl Spectrosc 2019 Jan 30:3702819831325. Epub 2019 Jan 30.

Tashkent State Technical University.

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http://dx.doi.org/10.1177/0003702819831325DOI Listing
January 2019
1 Read

Digital Staining of High-Definition Fourier Transform Infrared (FT-IR) Images Using Deep Learning.

Appl Spectrosc 2019 Jan 18:3702818819857. Epub 2019 Jan 18.

Department of Electrical and Computer Engineering, University of Houston, Houston, TX, USA.

Histological stains, such as hematoxylin and eosin (H&E), are routinely used in clinical diagnosis and research. While these labels offer a high degree of specificity, throughput is limited by the need for multiple samples. Traditional histology stains, such as immunohistochemical labels, also rely only on protein expression and cannot quantify small molecules and metabolites that may aid in diagnosis. Read More

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http://dx.doi.org/10.1177/0003702818819857DOI Listing
January 2019
1 Read

EXPRESS: Online Characterization of Single Airborne Carbon Nanotube Particles Using Optical Trapping Raman Spectroscopy.

Appl Spectrosc 2019 Jan 17:3702819828809. Epub 2019 Jan 17.

US Army Research Laboratory.

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http://dx.doi.org/10.1177/0003702819828809DOI Listing
January 2019
1 Read

EXPRESS; A Review of Chinese Raman Spectroscopy Research Over the Past Twenty Years.

Appl Spectrosc 2019 Jan 15:3702819828360. Epub 2019 Jan 15.

China Jiliang University.

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http://dx.doi.org/10.1177/0003702819828360DOI Listing
January 2019
2 Reads

EXPRESS: Deep Learning with Laser-Induced Breakdown Spectroscopy (LIBS) for Predicting Lead in Soil.

Appl Spectrosc 2019 Jan 9:3702819826283. Epub 2019 Jan 9.

Zhejiang University School of Biosystems Engineering and Food Science.

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http://dx.doi.org/10.1177/0003702819826283DOI Listing
January 2019
11 Reads

Combined Microspectroscopic Characterization of a Red-Colored Granite Rock Sample.

Appl Spectrosc 2019 Feb 7:3702818823555. Epub 2019 Feb 7.

Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan.

Combined microspectroscopic mapping have been conducted on a red-colored Tenzan granite sample by using an original visible-fluorescence-Raman microspectrometer together with a low vacuum scanning electron microscopy-energy dispersive spectrometry (SEM-EDS) without coating. Visible darkfield reflectance spectra were converted to L*a*b* color values and Kubelka-Munk (KM) spectra. Large a* value (red) positions correspond to large band areas at 500-560 nm, possibly due to hematite-like iron oxide, while large b* value (yellow) positions to large band areas at 450-500 nm, due to epidote-like mineral. Read More

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http://dx.doi.org/10.1177/0003702818823555DOI Listing
February 2019
1 Read

EXPRESS: Nondestructive Chemical Analysis of the Iron-Containing Protein Ferritin Using Raman Microspectroscopy.

Appl Spectrosc 2018 Dec 17:3702818823203. Epub 2018 Dec 17.

Technische Universitat Munchen Fakultat fur Chemie.

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http://dx.doi.org/10.1177/0003702818823203DOI Listing
December 2018
1 Read

EXPRESS: An On-Off-On Fluorescence Probe Based on Coumarin for Cu, Cysteine and Histidine Detections.

Appl Spectrosc 2018 Dec 7:3702818821329. Epub 2018 Dec 7.

Guilin University of Technology.

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http://dx.doi.org/10.1177/0003702818821329DOI Listing
December 2018
1 Read

EXPRESS: Two-Dimensional Correlation Spectroscopy (2D-COS) for Analysis of Spatially Resolved Vibrational Spectra.

Appl Spectrosc 2018 Nov 29:3702818819880. Epub 2018 Nov 29.

University of Delaware.

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http://dx.doi.org/10.1177/0003702818819880DOI Listing
November 2018
1 Read

EXPRESS: Measurement of Laser-Induced Plasma: Stark Broadening Parameters of Pb(II) 2203.5 and 4386.5 Å Spectral Lines.

Appl Spectrosc 2018 Nov 13:3702818816305. Epub 2018 Nov 13.

Universidad Politécnica de Madrid.

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http://dx.doi.org/10.1177/0003702818816305DOI Listing
November 2018
2 Reads

EXPRESS: An Optimizing Dynamic Spectrum Differential Extraction Method for Noninvasive Blood Component Analysis.

Appl Spectrosc 2018 Nov 9:3702818815508. Epub 2018 Nov 9.

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http://dx.doi.org/10.1177/0003702818815508DOI Listing
November 2018
2 Reads
1.880 Impact Factor

EXPRESS: Application of Different Fourier Transform Infrared (FT-IR) Methods in the Characterization of Lime-Based Mortars with Oxblood.

Appl Spectrosc 2018 Nov 9:3702818815693. Epub 2018 Nov 9.

Istituto per la Conservazione e Valorizzazione dei Beni Culturali Consiglio Nazionale delle Ricerche.

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http://dx.doi.org/10.1177/0003702818815693DOI Listing
November 2018
1 Read

EXPRESS: Polarizability of Aspirin at Terahertz Frequencies Using Terahertz Time Domain Spectroscopy (THz-TDS).

Appl Spectrosc 2018 Nov 5:3702818815177. Epub 2018 Nov 5.

University of Iowa.

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http://dx.doi.org/10.1177/0003702818815177DOI Listing
November 2018
1 Read

EXPRESS: Influence of Line Pair Selection on Flame Tomography Using Infrared Absorption Spectroscopy.

Appl Spectrosc 2018 Nov 5:3702818815181. Epub 2018 Nov 5.

The Chinese University of Hong Kong.

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http://dx.doi.org/10.1177/0003702818815181DOI Listing
November 2018
1 Read
1.880 Impact Factor

Quantification of Lipid Phase Order of In Vivo Human Skin Using Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) Spectroscopy and Multivariate Curve Resolution Analysis.

Appl Spectrosc 2018 Nov 16:3702818812738. Epub 2018 Nov 16.

1 Unilever Research & Development, Trumbull, CT, USA.

A new analysis methodology utilizing multivariate curve resolution (MCR) has been successfully combined with Fourier transform infrared (FT-IR) measurement of in vivo human skin to resolve lipid phase constituents in the spectra relative to high and low chain ordering. A clinical study was performed to measure lipid order through different depths of stratum corneum of human subjects. Fourier transform IR spectra were collected through the top 10 layers of the skin on four sites on the left and right forearm of 12 individuals. Read More

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http://dx.doi.org/10.1177/0003702818812738DOI Listing
November 2018
3 Reads

EXPRESS: Development of a New Kinetic Spectrophotometric Method for the Determination of Chromium with an Optical Probe.

Appl Spectrosc 2018 Oct 23:3702818812401. Epub 2018 Oct 23.

Faculty of Science, University of Pavol Jozef Šafárik in Košice.

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http://dx.doi.org/10.1177/0003702818812401DOI Listing
October 2018
1 Read

Investigation of Issues for the Accurate and Precise Measurement of an Analyte Using Surface-Enhanced Raman Scattering (SERS).

Appl Spectrosc 2018 Nov 30:3702818811389. Epub 2018 Nov 30.

1 Department of Chemical Engineering, University of Utah, Salt Lake City, UT, USA.

This paper builds on an earlier examination of the influence of sampling size and analyte surface density on the accuracy and precision of measurements using surface-enhanced Raman scattering (SERS) to read out heterogeneous immunoassays. Quantitation using SERS typically relies on interrogating a small area on the sample surface by using a micrometer-sized laser spot for signal generation. The information obtained using such a small portion of sample is then projected as being representative of the much larger sample, which can compromise the accuracy and precision of the measurement due to undersampling. Read More

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http://dx.doi.org/10.1177/0003702818811389DOI Listing
November 2018
1 Read

Gas Chromatography-Mass Spectrometry (GC-MS) and Gas Chromatography-Infrared (GC-IR) Analyses of the Chloro-1- n-pentyl-3-(1-naphthoyl)-Indoles: Regioisomeric Cannabinoids.

Appl Spectrosc 2018 Nov 16:3702818809998. Epub 2018 Nov 16.

1 Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA.

The analytical differentiation of the indole ring regioisomeric chloro-1- n-pentyl-3-(1-naphthoyl)-indoles is described in this report. The regioisomeric chloroindole precursor compounds, N- n-pentyl chloroindole synthetic intermediates, and the target chloro-substituted naphthoylindoles showed the equivalent gas chromatographic elution order based on the position of chlorine substitution on the indole ring. The regioisomeric chloro-1- n-pentyl-3-(1-naphthoyl)-indoles yield electron ionization mass spectra having equivalent major fragments resulting from cleavage of the groups attached to the central indole nucleus. Read More

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http://dx.doi.org/10.1177/0003702818809998DOI Listing
November 2018
10 Reads
1.880 Impact Factor

A Two Components Approach for Long Range Remote Raman and Laser-Induced Breakdown (LIBS) Spectroscopy Using Low Laser Pulse Energy.

Appl Spectrosc 2018 Nov 20:3702818812144. Epub 2018 Nov 20.

Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, Honolulu, HI, USA.

The remote detection of chemicals using remote Raman spectroscopy and laser-induced breakdown spectroscopy (LIBS) is highly desirable for homeland security and NASA planetary exploration programs. We recently demonstrated Raman spectra with high signal-to-noise ratio of various materials from a 430 m distance during daylight with detection times of 1-10 s, utilizing a 203 mm diameter telescopic remote Raman system and 100 mJ/pulse laser energy at 532 nm for excitation. In this research effort, we describe a simple two-components approach that helps to obtain remote Raman and LIBS spectra of targets at distance of 246 m with 3 mJ/pulse in daytime. Read More

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http://journals.sagepub.com/doi/10.1177/0003702818812144
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http://dx.doi.org/10.1177/0003702818812144DOI Listing
November 2018
3 Reads
1.880 Impact Factor

EXPRESS: Process Pattern-Based Near Infrared (NIR) Spectroscopy Fault Detection Using a Potential Function.

Appl Spectrosc 2018 Oct 22:3702818809996. Epub 2018 Oct 22.

Jiangnan University.

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http://dx.doi.org/10.1177/0003702818809996DOI Listing
October 2018
2 Reads

Measurement of Dysprosium Stark Width and the Electron Impact Width Parameter.

Appl Spectrosc 2018 Nov 14:3702818807923. Epub 2018 Nov 14.

2 IEAv-Instituto de Estudos Avançados (Institute for Advanced Studies), São José dos Campos/SP, Brazil.

In this work, we suggest a methodology to determine the impact parameter for neutral dysprosium emission lines from the characterization of the plasma generated by laser ablation in a sealed chamber filled with argon. The procedure is a combination of known consistent spectroscopic methods for plasma temperature determination, electron density, and species concentration. With an electron density of 3. Read More

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http://dx.doi.org/10.1177/0003702818807923DOI Listing
November 2018
1 Read

Infrared Reflectance Spectroscopic Evaluation of Inkjet Printed Standards of Cyclotrimethylenetrinitramine (RDX) on Aluminum Substrates.

Appl Spectrosc 2018 Nov 14:3702818809944. Epub 2018 Nov 14.

2 United States Army Research Laboratory, Adelphi, MD, USA.

The Department of Defense (DOD) and first responder communities are evaluating and developing optical systems for the detection and identification of explosives and components used for assembling homemade explosives (HMEs). Emerging detection technologies must be evaluated with authentic hazard material concentrations to ensure their accurate and reliable use in the field. In this work, infrared (IR) reflectance spectra over the spectral rage of 1000-1700 cm were collected for different concentrations of inkjet-printed RDX (cyclotrimethylenetrinitramine) samples deposited onto aluminum substrates. Read More

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http://dx.doi.org/10.1177/0003702818809944DOI Listing
November 2018
2 Reads

Single-Cell and Bulk Fluorescence Excitation Signatures of Seven Phytoplankton Species During Nitrogen Depletion and Resupply.

Appl Spectrosc 2018 Nov 15:3702818812090. Epub 2018 Nov 15.

1 Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, USA.

Phytoplankton play a vital role as primary producers in aquatic ecosystems. One common approach to classifying phytoplankton is fluorescence excitation spectroscopy, which leverages the variation in types and concentrations of pigments among different phytoplankton taxonomic groups. Here, we used a fluorescence imaging photometer to measure excitation ratios ("signatures") of single cells and bulk cultures of seven differently pigmented phytoplankton species as they progressed from nitrogen N-replete to N-depleted conditions. Read More

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http://dx.doi.org/10.1177/0003702818812090DOI Listing
November 2018
2 Reads

Detecting Temporal Changes of Self-Absorption in a Laser-Induced Copper Plasma from Time-Resolved Photomultiplier Signal Emission Profiles.

Appl Spectrosc 2018 Nov 14:3702818812087. Epub 2018 Nov 14.

1 Department of Chemistry, University of Florida, Gainesville, FL, USA.

This work reports an investigation on the feasibility of using a photomultiplier tube (PMT) to follow the time evolution of self-absorption of copper resonance transitions at 324.7 nm and 327.4 nm. Read More

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http://dx.doi.org/10.1177/0003702818812087DOI Listing
November 2018
2 Reads

Correlation of Trace Silicone Contamination Analyses on Epoxy Composites Using X-ray Photoelectron Spectroscopy (XPS) and Laser-Induced Breakdown Spectroscopy (LIBS).

Appl Spectrosc 2019 Feb 16;73(2):229-235. Epub 2018 Nov 16.

2 NASA Langley Research Center, Hampton, VA, USA.

Surface treatment and surface characterization techniques are critical to ensure that adherends are chemically activated and free of contaminants before adhesive bonding. Silicone contamination from mold release agents and other sources can interfere with interfacial bonding, decreasing the durability and performance of bonded composite structures. It is necessary to have tools and methods that can be used in a production environment to reliably detect low levels of contaminants in a rapid, simple, and cost-effective manner to improve bond reliability. Read More

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http://dx.doi.org/10.1177/0003702818809928DOI Listing
February 2019
3 Reads

EXPRESS: Determination of Triacetone Triperoxide and Hexamethylene Triperoxide Diamine in Various Matrices Using Infrared Spectroscopy.

Appl Spectrosc 2018 Oct 22:3702818811911. Epub 2018 Oct 22.

Vysoka skola chemicko-technologicka v Praze Fakulta chemicke technologie.

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http://dx.doi.org/10.1177/0003702818811911DOI Listing
October 2018
2 Reads

Atmospheric Aerosol Multiband Synthesis Imaging Spectrometer.

Appl Spectrosc 2019 Feb 14;73(2):221-228. Epub 2018 Nov 14.

1 State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, China.

According to the characteristics of the spectrum distribution for atmospheric aerosol detection, a multiband synthesis imaging spectrometer system based on Czerny-Turner configuration is designed and proposed in this paper. Using a grating array instead of a traditional single grating, and together with a filter array, the proposed configuration can achieve hyperspectral imaging with the spectral resolution of 0.16 nm, 0. Read More

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http://dx.doi.org/10.1177/0003702818809474DOI Listing
February 2019
4 Reads

Quick Test for Transgenic Components in Rice Using Terahertz Spectra.

Appl Spectrosc 2019 Feb 16;73(2):171-181. Epub 2018 Nov 16.

2 Grain Information Processing and Control, Key Laboratory of Ministry of Education, Henan University of Technology, Zhengzhou, China.

The terahertz (THz) spectrum of 0.2-1.6 THz (6. Read More

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http://dx.doi.org/10.1177/0003702818812085DOI Listing
February 2019
2 Reads
1.880 Impact Factor

EXPRESS: Portable Spectroscopy.

Authors:
Richard Crocombe

Appl Spectrosc 2018 Oct 18:3702818809719. Epub 2018 Oct 18.

Crocombe Spectroscopic Consulting.

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http://dx.doi.org/10.1177/0003702818809719DOI Listing
October 2018
2 Reads

An Adaptive and Fully Automated Baseline Correction Method for Raman Spectroscopy Based on Morphological Operations and Mollification.

Appl Spectrosc 2018 Nov 14:3702818811688. Epub 2018 Nov 14.

2 The Dodd-Walls Centre for Photonic and Quantum Technologies, Dunedin, New Zealand.

Baseline drift is a commonly identified and severe problem in Raman spectra, especially for biological samples. The main cause of baseline drift in Raman spectroscopy is fluorescence generated within the sample. If left untreated, it will affect the following qualitative or quantitative analysis. Read More

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http://dx.doi.org/10.1177/0003702818811688DOI Listing
November 2018
1 Read

Multiwavelength Regression Algorithm for Eliminating Chamber Surface Effects of Microfluidic Chips.

Appl Spectrosc 2018 Oct 15:3702818798044. Epub 2018 Oct 15.

1 State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, China.

An ultraviolet visible (UV-Vis) spectrophotometric and multiwavelength linear regression (MLR) method was developed for eliminating the influence of the surface quality of centrifugal microfluidic chips on the accuracy of their absorbance detection. The regression model is based on scalar scattering theory. The method was validated with cuvettes with different surface quality and Orange G (orange gelb) dye. Read More

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http://dx.doi.org/10.1177/0003702818798044DOI Listing
October 2018
10 Reads

Characterization of Oxide Layers on Technical Copper Material Using Ultraviolet Visible (UV-Vis) Spectroscopy as a Rapid On-Line Analysis Tool.

Appl Spectrosc 2018 Oct 11:3702818797959. Epub 2018 Oct 11.

2 Reutlingen University, Process Analysis and Technology, Reutlingen, Germany.

An ultraviolet visible (UV-Vis) spectroscopy method was developed that can quantitatively characterize a technical copper surface to determine oxide layers and organic impurities. The oxide layers were produced by a heating step at 175 ℃ for four different times (range = 1-10 min). Partial least squares (PLS) regression was used to establish a relation between the UV-Vis spectra and film thickness measurements using Auger electron spectroscopy depth profiles. Read More

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http://dx.doi.org/10.1177/0003702818797959DOI Listing
October 2018
3 Reads

Pittcon 60th Anniversary Sessions Summary.

Authors:

Appl Spectrosc 2018 Sep;72(1_suppl):89-90

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http://dx.doi.org/10.1177/0003702818794313DOI Listing
September 2018
2 Reads

Preview of LIBS 2018 Matthieu Baudelet, University of Central Florida, and 2018 LIBS General Chair.

Authors:

Appl Spectrosc 2018 Sep;72(1_suppl):95-96

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http://dx.doi.org/10.1177/0003702818795993DOI Listing
September 2018
1 Read