Laser ablation particle plume compositions are characterized using inductively coupled plasma mass spectrometry (ICP/MS). This study evaluates the mass response characteristics peculiar to ICP/MS detection as a function of laser fluence and frequency. Eva...
National Technical Information Service (NTIS)
-element fractionation in laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) analysis is one is close to 1. Since laser ablation inductively coupled plasma mass spectro- metry (LA-ICP-MS) was �rst) are commonly used as an internal standard for in situ ...
E-print Network
Particle size effects and elemental fractionation in laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) are investigated with nanosecond and femtosecond laser ablation, differential mobility analysis, and magnetic sector ICP-MS. Laser...
On the basis of consulting the home and abroad literatures in recent years, the research progress in the method of laser ablation solid sampling to the inductively coupled plasma source and its application in the analysis of material compositions are described. The present paper emphatically reviewed the influence of the laser-beam ...
PubMed
... with laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) , allowing a combination of high sensitivity and good spatial resolution. ...
NASA Website
LA-ICP-MS, The Laser-Ablation Inductively Coupled Mass Spectrometer Lab was part of the Maryland Geology tour. Drs. Jason Dworkin and Joeseph Nuth, July 8, ...
. simoterum Perca flavescens Percina caprodes Stizostsdion canadense Aplodinotus grunniens Cottus carolinae a
May 13, 2008 ... Atomic Absorption Spectrophotometry � ICP operator and equipment � Inductively Coupled Plasma (ICP) Atomic Emission Spectrometry ...
Jun 20, 2008... several basaltic lunar samples using a combination of solution and laser ablation inductively coupled plasma mass spectrometry (ICP-MS). ...
laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), focused ion beam extractions (FIB), secondary ion mass spectrometry or ion ...
Mar 1, 2011... and 2) analysis of run products with laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), allowing a combination of ...
The ablation properties and analytical behavior of a uranium-zirconium alloy have been examined using tandem laser ablation/pneumatic nebulization sample introduction in conjunction with inductively coupled atomic emission spectrometry (LA-ICP-AES). An apparent change in composition of the laser ...
Energy Citations Database
concentrations obtained by laser-ablation inductively coupled mass-spectrometry (LA-ICP-MS) in olivine concentrations were measured in situ by laser ablation inductively-coupled plasma mass spectrometry (LA-ICP-MS measured by the sample- standard bracketing method using a Nu Plasma multi- ...
The focus of this dissertation is the use of a twin quadrupole inductively coupled plasma mass spectrometer (ICP-MS) for the simultaneous detection of two m/z values. The twin quadrupole ICP-MS is used with laser ablation sample introduction in both the s...
of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) to investigate the chemical or exposure to sunlight. 5.2.1 LA-ICP-MS The concentrations of many trace elements in the zircon samples were determined by single-grain analyses using laser ablation inductively ...
Femtosecond and nanosecond lasers were compared for ablating brass alloys. All operating parameters from both lasers were equal except for the pulse duration. The ablated aerosol vapor was collected on silicon substrates for particle size measurements or sent into an inductively coupled plasma mass spectrometer. ...
Plasma quenching efficiency by ablated vapor of polymers containing nitrogen atom was numerically investigated for the inductively coupled thermal plasma technique. Polyamide66 (PA66), which contains nitrogen atoms, was used for polymer materials, and it is injected into Ar thermal plasma in the numerical simulation. The simulation ...
NASA Astrophysics Data System (ADS)
Laser ablation (LA) with inductively coupled plasma mass spectrometry (ICP-MS) has been demonstrated as a viable technology for sample characterization within the EM complex. Laser ablation systems have been set up at the Hanford Site, Savannah River Plan...
(such as ion probe or laser ablation ICP-MS) are hampered by a lack of well characterized, homogeneous micro-analyses d'�l�ments en trace (par sonde ionique ou ICP-MS avec ablation laser) sont g�n�es par l during laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS) ...
The amount of ablated mass can influence the temperature andexcitation characteristics of the inductively coupled plasma (ICP) andmust be taken into account to ensure accurate chemical analysis. The ICPelectron number density was investigated by using measurements of the Mgionic to atomic resonant-line ratios during laser ...
using laser-ablation MC-ICPMS Emma-Kate Pottera,, Claudine H. Stirlinga, Uwe H. Wiecherta, Alex N-ablation multiple-collector inductively coupled plasma mass spectrometry (LA MC-ICPMS). Utilising a 193 nm excimer ablation; MC-ICPMS; Coral; U-series dating 1. Introduction Late Pleistocene ...
youngest unit of the Chugach accretionary complex in southeastern Alaska. Using laser-ablation inductively coupled plasma mass spectroscopy, we obtained 492 detrital-zircon ages on...
Science.gov Websites
... fidelity in mountain whitefish. Laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) measures relative concentrations of up to 32 elements in micro-samples. This technique was applied to ...
NBII National Biological Information Infrastructure
... Thole, J.T., and Williams, J., 2010, Using laser ablation-inductively couple plasma-mass spectrometry (LA-ICP-MS) to explore geochemical ... ...
age. This study presents geochemical data on sulfide-rich samples, in situ laser-ablation inductively coupled plasma mass spectrometry (LA�ICP�MS) of sulfide minerals, and...
. [1] We used laser ablation inductively coupled plasma mass spectrometry (LA ICP-MS) to analyze Sr laser ablation inductively coupled plasma mass spectrometry (LA ICP-MS) to analyze Sr/Ca ratios along of 6 #12;0.3-mm alumina suspension. Tissue was not removed. We assayed ...
The Zn-to-Cu ratio in brass was measured by laser ablation inductively coupled plasma atomic emission spectroscopy. The influence of laser beam properties (pulse width, wavelength, and power density) on fractional laser ablation was investigated. The behavior of the Zn/Cu ratio vs. laser power density shows that ...
A method and apparatus are disclosed for in situ addition calibration of an inductively coupled plasma atomic emission spectrometer or mass spectrometer using a precision gas metering valve to introduce a volatile calibration gas of an element of interest directly into an aerosol particle stream. The present in situ calibration technique is suitable for ...
A method and apparatus for in situ addition calibration of an inductively coupled plasma atomic emission spectrometer or mass spectrometer using a precision gas metering valve to introduce a volatile calibration gas of an element of interest directly into an aerosol particle stream. The present situ calibration technique is suitable for various remote, ...
DOEpatents
ablation physics to a hypersonic flow simulation is provided. ... of conditions involving coupled radiation and ablation. I. Nomenclature ...
This report describes an innovative technology, laser ablation-inductively couple plasma-mass spectrometry (LA-ICP-MS), operated in a mobile laboratory, to rapidly detect thorium 230 activity levels in soil samples. This technology was demonstrated on-sit...
We investigate particles produced by laser irradiation and their analysis by Laser Ablation Inductively Coupled Plasma Mass Spectroscopy (LA/ICP-MS), with a view towards optimizing particle production for analysis of high level waste materials and waste glass. LA/ICP-MS has consi...
EPA Science Inventory
by laser ablation (LA) inductively coupled plasma mass spectrometry (ICP-MS). A compact computer-MS and the LA via serial RS-232 port. Each LA-ICP-MS analysis at a defined point includes a 60 s pre solution auto-sampler ICP-MS analysis. Each analytical cycle consists of four standards, one control
The ability to use laser ablation for preparation of art pigment samples in quantitative analysis of their elemental composition by atomic emission spectroscopy of inductively coupled plasma is shown. The proposed technique enables one to eliminate errors associated with both the influence of strong acids and the stoichiometric ...
Using the coupled ablation and radiation capability recently included in the LAURA flowfield solver,
NASA Technical Reports Server (NTRS)
Laser ablation particle plume compositions are characterized using inductively coupled plasma mass spectrometry (ICP/MS). This study evaluates the mass response characteristics peculiar to ICP/MS detection as a function of laser fluence and frequency. Evaluation of the ICP/MS mass response allows deductions to be made concerning how ...
DOE Information Bridge
Laser ablation is becoming a dominant technology for direct solid sampling in analytical chemistry. Laser ablation refers to the process in which an intense burst of energy delivered by a short laser pulse is used to sample (remove a portion of) a material. The advantages of laser ablation chemical analysis include direct ...
Laser ablation has become a dominant technology for directsolid sampling chemical analysis. Commonly used detection modalitiesinclude LIBS (laser induced breakdown spectroscopy) for directspectroscopic analysis from the laser-induced plasma at the samplesurface,and ICPMS (inductively coupled plasma mass spectroscopy) in whichthe ...
A laser ablation-inductively coupled plasma-mass spectrometric (LA-ICPMS) technique utilizing a titanium-sapphire (TiS) femtosecond laser (fs-laser) has been developed for elemental and isotopic analysis. The signal intensity profile, depth of the ablation pit and level of elemental fractionation were investigated in order to evaluate ...
Single pulse laser ablation sampling with inductively coupled plasma mass spectrometry (ICP-MS) was assessed for accurate chemical analysis. Elemental fractionation (e.g. Pb/U), the quantity of ablated mass (crater volume), ICP-MS intensity and the particle contribution (spike signal) during single pulse ...
Time-resolved force sensing and intensified charge-coupled device (ICCD) imaging techniques were applied to the study of the effects of laser energy density on impulse coupling coefficient of laser ablation of water for propulsion. A Transversely Excited at Atmospheric pressure (TEA) CO2 laser operated at 10.6 ?m, 30 J pulse energy was ...
Reproducible and sensitive elemental analysis of solid samples is a crucial task in areas of geology (e.g. microanalysis of fluid inclusions), material sciences, industrial quality control as well as in environmental, forensic and biological studies. To date the most versatile detection method is mass-spectroscopic multi-element analysis. In order to obtain reproducible results, this requires ...
Laser ablation (LA) with inductively coupled plasma mass spectrometry (ICP-MS) has been demonstrated as a viable technology for sample characterization within the EM complex. Laser ablation systems have been set up at the Hanford Site, Savannah River Plant, the Pu immobilization program (MD), Los Alamos, and at ...
The symbiotic relationship between laser ablation mechanismsand analytical performance using inductively coupled plasma-atomicemission spectroscopy are addressed in this work. For both cases, it isimportant to ensure that the ICP conditions (temperature and electronnumber density) are not effected by the ablated ...
Laser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS) is a solid sampling technique in continuous expansion in all types of research fields in which direct multi-elemental or isotopic analysis is required. In particular, this technique shows unique characteristics that made its use recommended in many archaeometric applications, where ...
This report describes the installation, testing and acceptance of the Waste Treatment and Immobilization Plant procured laser ablation-inductively coupled plasma-atomic emission spectroscopy (LA-ICP-AES) system for remotely analyzing high-level waste samples in a hot cell environment. The 2005-003; ATS MP 1027, Management Plan for Waste Treatment Plant ...
This report describes the installation, testing, and acceptance of the Waste Treatment and Immobilization Plant (WTP) procured laser ablation-inductively coupled plasma-atomic emission spectroscopy (LA-ICP-AES) system for remotely analyzing high-level waste (HLW) samples in a hot cell environment. The work was completed by the Analytical Process ...
The purpose of this trip to LECO Corporation was to test the non-matrix matched calibration method and the principal component analysis (PCA) method on a laser ablation-inductively coupled plasma-time of flight mass spectrometry (LA-ICP-TOFMS) system. An LA-ICP-TOFMS system allows for multielement single-shot analysis as well as spatial analysis on small ...
Mass spectrometric methods that are able to analyze solid samples or biological materials with little or no sample preparation are invaluable to science as well as society. Fundamental research that has discovered experimental and instrumental parameters that inhibit fractionation effects that occur during the quantification of elemental species in solid samples by laser ...
Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) with multi-element capability is well established for the trace and ultratrace analysis of metals, metalloids and selected non-metals (such as C, P, S) in biological and clinical samples. Nowadays LA-ICP-MS is employed as a sensitive elemental mass spectrometric ...
Laser ablation coupled to inductively coupled plasma mass spectrometry has become a versatile and powerful analytical method for direct solid analysis. The applicability has been demonstrated on a wide variety of samples, where major, minor, and trace element concentrations or isotope ratio determinations have been ...
Pulsed laser ablation (266nm) was used to generate metal particles of Zn and Al alloys using femtosecond (150 fs) and nanosecond (4 ns) laser pulses with identical fluences of 50 J cm{sup -2}. Characterization of particles and correlation with Inductively Coupled Plasma Mass Spectrometer (ICP-MS) performance was investigated. Particles ...
We compared the analytical performance of ultraviolet femtosecond and nanosecond laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS). The benefit of ultrafast lasers was evaluated regarding thermal-induced chemical fractionation, that is otherwise well known to limit LA-ICPMS. Both lasers had a Gaussian beam energy ...
This paper reports the first trace element partition coefficients measured on experimentally produced products (clinopyroxene, garnet, rutile, and glass) by laser ablation microprobe-inductively coupled plasma-mass spectrometry (LAM-ICP-MS). A 266 nm (UV) laser microprobe was used to improve ablation ...
A new analysis procedure for determination of trace impurities in a few milligram noble metal nanoclusters, using on-line isotope dilution in laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) was developed. During the laser ablation of investigated sample simultaneous the dry aerosol of ...
... Title : INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROSCOPY AND ITS APPLICATION IN TESTING AND FAILURE ...
DTIC Science & Technology
An analytical procedure has been proposed for the determination of precise uranium isotope ratios in a thin uranium layer on a biological surface by laser ablation inductively coupled plasma sector field mass spectrometry (LA-ICP-MS). A cooled laser ablation chamber using a Peltier element was developed in order to ...
