... BOTH THE PARTICLE LEVITATION AND MASS ANALYSIS WILL BE CARRIED OUT WITHIN THE SAME QUADRUPOLE TRAP. ...

Laser desorption mass spectrometry is a useful method for interrogating materials and events at or near surfaces. Laser desorption/ablation combined with Resonance Ionization Mass Spectrometry (RIMS) provides a powerful tool to obtain information on chemi...

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...

laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), focused ion beam extractions (FIB), secondary ion mass spectrometry or ion ...

The field of the invention is atmospheric pressure mass spectrometry (MS), and more specifically a process and apparatus which combine infrared laser ablation with electrospray ionization (ESI).

This image-rich website from Indiana University's Laboratory of Spectrochemistry provides a brief description of laser ablation and mass spectrometry.

-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 multi-element ...

The laser ablation-ion funnel (LAIF) is being developed to ionize rock samples in the ambient Martian environment. The LAIF will then efficiently capture, transport and inject the product ions into a mass spectrometer for in situ analysis.

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...

Typically, in real-time aerosol mass spectrometry (RTAMS), individual airborne particles are ablated and ionized with a single focused laser pulse. This technique yields information that permits bulk characterization of the particle, but information about the particle's sur...

This paper describes the use of double-pulse laser ablation to improve ICP-MS internal precision (temporal relative standard deviation, %TRSD). Double pulse laser ablation offers reduced fractionation, increased sensitivity, and improved signal to noise ratios. The first pulse is used to ablate a large quantity of ...

... Title : New Technique for Analyzing Small Inclusions Using Transmission Electron Microscopy and Laser Ablation Microprobe Mass Spectrometry. ...

... with laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) , allowing a combination of high sensitivity and good spatial resolution. ...

Theory and results are presented for RIMS diagnostics of a variety of laser-materials interactions. 5 refs. 3 figs.

... France, is the CRPG team leader for investigating nitrogen isotopes in gold on sapphire wafers using laser ablation and static mass spectrometry. ...

Jun 20, 2008... several basaltic lunar samples using a combination of solution and laser ablation inductively coupled plasma mass spectrometry (ICP-MS). ...

Mar 1, 2011... and 2) analysis of run products with laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), allowing a combination of ...

. simoterum Perca flavescens Percina caprodes Stizostsdion canadense Aplodinotus grunniens Cottus carolinae a

Laser ablation mass spectrometry and surface-enhanced Raman spectroscopy have been used to characterize both modern and 150 year old daguerreotypes. Such investigations are a necessary prelude to attempts to clean them of tarnish by laser ablation. A demonstration of the successful cleaning of a damaged ...

Trace quantities of laser ablated organic polymers were analyzed by using commercial capillary column gas chromatography/mass spectrometry; the instrument was modified so that the laser ablation products could be introduced into the capillary column directly and the constituents of each peak in the chromatogram ...

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 ...

The history of laser ablation studies begins with the birth of the laser itself. Throughout the 1960's, a surprisingly diverse array of studies appeared which presaged most modern applications of laser ablation. The number of studies grew linearly in the seventies but exploded around 1985 with the popularization of applications such as thin film ...

The history of laser ablation studies begins with the birth of the laser itself. Throughout the 1960's, a surprisingly diverse array of studies appeared which presaged most modern applications of laser ablation. The number of studies grew linearly in the seventies but exploded around 1985 with the popularization of applications such as thin film growth, ...

Techniques have been developed to volatilize intact massive DNA molecules using pulsed laser ablation of thin frozen films of aqueous DNA solutions. Electrophoresis assay of the ablated DNA shows that molecules as massive as approximately 400,000 Da can be ablated intact. It has been possible to obtain time-of-flight ...

Ever since the first report of laser action, it has been recognized that laser ablation (evaporation/volatilization) may provide a useful sampling mechanism for chemical analysis. In particular, laser ablation is rapidly gaining popularity as a method of sample introduction for mass spectrometry. Since its original ...

Laser ablation of bulk high-temperature superconductor (HTS) material provides a useful means of producing high-quality HTS thin films. Mass spectrometric probes of the ablation plume provide a microscopic understanding of the ablation event and plume development as well as providing a process monitor for the ...

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- ...

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...

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 coupled plasma ...

Laser ablation of bulk High Temperature Superconductor (HTS) material promises to provide a useful means of producing high quality HTS thin films. Mass spectrometric probes of the ablation plume provide a microscopic understanding of the ablation event and plume development as well as providing a process monitor ...

Sample ablation by pulsed lasers is one option for removing material from a sample surface for in situ depth profiling during imaging mass spectrometry, but ablation is often limited by laser-induced damage of the remaining material. A preliminary evaluation was performed of sub-100 fs, 800 nm pulsed laser ...

Sample ablation by pulsed lasers is one option for removing material from a sample surface for in situ depth profiling during imaging mass spectrometry, but ablation is often limited by laser-induced damage of the remaining material. A preliminary evaluation was performed of sub-100 fs, 800 nm pulsed laser ...

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 ...

This report describes efforts to harness mass spectrometry as a rapid means to sequence DNA. Synthetic oligonucleotides (8--60 base pairs) were employed to evaluate several approaches including ablation/ionization of DNA from ice films, DNA ablation from UV chromophore matrices, comparisons of ice and UV ...

A method for the real-time detection of individual bacteria is described. Airborne bacteria and bacterial spores are directly sampled by laser ablation in an ion trap mass spectrometer with an atmospheric pressure inlet system. either positive or negative...

Time of flight mass spectrometry offers an extremely rapid and accurate alternative to gel electrophoresis for sizing DNA fragments in the Sanger sequencing process, if large single-stranded DNA molecules can be volatilized and ionized without fragmentation. A process based on pulsed laser ablation of thin frozen films of DNA solutions ...

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) ...

We have investigated the precision of strontium isotope analysis by Laser Ablation-assisted Resonance Ionization Mass Spectrometry(LA-RIMS). We have confirmed that the mass discrimination effect on the {sup 87}Sr/{sup 86}Sr measurement was reduced by the internal correction method. For the present system, the ...

We have investigated the precision of strontium isotope analysis by Laser Ablation-assisted Resonance Ionization Mass Spectrometry(LA-RIMS). We have confirmed that the mass discrimination effect on the 87Sr/86Sr measurement was reduced by the internal correction method. For the present system, the precision of the ...

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...

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 ...

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 ...