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The article discusses the terms of units used worldwide as quadrupole has based inductively coupled plasma–mass spectrometry equipment, also multicollector ICP-MS (MC-ICP-MS) instrumentation has revolutionized many fields. Topics inlcude the MC-ICP-MS has dedicated the high-precision isotopic analysis of metals, the disappointment with MC-ICP-MS the awareness the ionization for high irrespective of the concomitant matrix, and the reliable isotope ratio data has require the target element.

This article describes a novel automated ultratrace gas chromatography-mass spectrometry (GC-MS) method that quantitates the eight toxaphene Parlar congeners as designated in U.S. Environmental Protection Agency (EPA) Method 8276. This method was developed and applied to fish tissue and used a conventional sample preparation approach to extract, clean up, and fractionate selected Parlar congeners. Instrument detection limits for the eight toxaphene Parlar congeners quantitated were calculated in two ways. Quality control (QC) measures that were used to validate the new method are discussed and QC results are presented for these eight Parlar congeners of environmental significance. [ABSTRACT FROM AUTHOR]

The authors discuss the issue of radiation exposure in nuclear power plants. They mention the release of of radiation from corrosion in plant equipment, the kinds of isotopes that may be released, and how to assess and rectify problems.

The article discusses the use of mass cytometry and inductively coupled plasma-mass spectroscopy (ICP-MS) in the field of single-cell biology. Topics discussed include the advantage of mass cytometry in isotope resolution, the components of mass cytometer technology such as time-of-flight (TOF), ICP, and ion optics, and the methods for determining the viable cells.

Laser ablation molecular isotopic spectrometry (LAMIS) involves measuring isotope-resolved molecular emission. Measurements of several key isotopes (hydrogen, boron, carbon, nitrogen, oxygen, and chlorine) in laser ablation plumes were demonstrated. Requirements for spectral resolution of the optical detection system could be significantly relaxed when the isotopic ratio was determined using chemometric regression models. Multiple applications of LAMIS are anticipated in the nuclear power industry, medical diagnostics and therapies, forensics, carbon sequestration, and agronomy studies. [ABSTRACT FROM AUTHOR]

The article focuses on a study related to the use of collision cell for isotope selection in Selected Ion Monitoring (SIM) operational mode. Under the study, isotopic envelope of selenium (Se) was selected for evaluation. The study mentions that Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) instrumentation is used for the analysis of environmental water systems. The study further concludes that collision cooling results in signal attenuation of the analyze ion transmission.

High performance time-of-flight mass spectrometry (TOF-MS) is applied to the analysis and characterization of complex biological samples. High mass accuracy, high resolution, and accurate relative isotope abundance are all applied to the determination of analytes covering a range of concentrations in complex matrices including plasma and urine. Qualitative and quantitative evaluations are provided and include demonstrations of the impact of high- performance MS on sensitivity and selectivity. The ability to leverage high-performance MS in conjunction with a broad dynamic range in rapid ultrahigh-pressure liquid chromatography (UHPLC) analyses to identify unknowns and to propose putative metabolic biomarkers is demonstrated. The impact of speed of analysis and selectivity to the depth of coverage and accuracy of the analyses are discussed. [ABSTRACT FROM AUTHOR]

The article discusses the fuel oil analysis which uses an inductively coupled plasma-mass spectrometry (ICP-MS) for the trace elemental determination in residual fuel oil. The study used the standard and dynamic reaction cell (DRC) modes to demonstrate the ability of ICP-MS to measure low levels of important elements in fuel oil matrices. Figures are presented showing the instrumental parameters used for analysis and isotopes and DRC mode cell parameters.

The article presents a study which examines the origins of extra virgin olive oil through gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS). The study examines six bottles of extra olive oil from different countries and applied linear discriminant analysis (LDA) and hierarchical clustering analysis (HCA) to the carbon isotopes results. The result shows the statistical difference of fatty acid methyl esters (FAMEs) in oils in carbon isotopes.

The article presents an analysis concerning the practical art of mass spectrometry. It focuses on mass accuracy and resolution, interpreting mass spectrometer output, and solvents and caveats for liquid chromatography-mass spectrometry. It determines the role of isotopes play in determining a compound's identity. Moreover, it emphasizes that a comprehensive method of evaluating instrument mass accuracy measurement capability is to calculate the root mean square (RMS) error.

The article focuses on the significance of naturally occurring stable isotopes in mass spectrometry (MS). It presents how the effects can be exploited in quantitative experiments, structural elucidation studies and tracer methodologies. Experiment shows that these isotopes result in a cluster of peaks in the region of the precursor or fragment ion under conditions of unit mass resolution. Isotopologue and isotopomer relative MS intensity can be calculated from element fractional abundances.

The article discusses the importance of high-sensitivity inductively coupled plasma-mass spectrometry (ICP-MS) for the determination of ultra-trace levels of isotopes that do not undergo spectral interferences. High sensitivity ICP-MS is useful in various applications such as laser ablation, isotope ratio measurements, and speciation. However, the detection limits for these isotopes are improved when sensitivity is increased.

The author discusses some simple analogies to describe gas chromatography-mass spectrometry (GC-MS) to an elementary-school student audience using jelly beans. In explaining MS-ionization, he states the concept of isotopes can be introduced with the use of a different number of black jelly beans as neutrons. In explaining MS-mass analysis, he represents jelly beans as atoms of elements, and explains that each elements has a different mass analyzer in the MS.

Secured funding this year and acquired 240 acres of land in the southeastern corner of the state to build a small reactor dedicated to producing medical isotopes. Sandia's concept to produce moly-99 with a small, 2-megawatt reactor requires less maintenance than larger reactors. [Extracted from the article]

The article presents information on the chromatographic separations of archaeological biomolecules. Stable isotopes of lighter elements such as carbon, nitrogen, oxygen and hydrogen can be measured at very high precision using isotope ratio mass spectrometry (IRMS). Currently, the most successful compound specific isotope method in archaeological measurements couples gas chromatography (GC) with IRMS, a technique alternately called isotope ratio monitoring GC-MS or GC-combustion-IRMS. One interesting application of GC-C-IRMS is to the analysis of cholesterol in ancient and modern bone.

An interview with University of British Columbia research director Dominique Weis on multiple-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS) in 2014 is presented. When asked on the plus and minuses of MC-ICP-MS, she replies that it can simultaneously collect masses, but is slow for wide-range scanning. Weis states that analyte-matrix chemical separation removes spectral effects. She notes the critical role of MC-ICP-MS in tracing the fate of metals in the environment.

The article discusses the relationship of the discovery of two isotopes of xenon based on the sampling of aircraft and ground-based collection sites with the detonation of North Korea on October 9, 2006. The discovery of xenon indicates that the detonation was a nuclear weapon test. Despite assertions of the administration of U.S. President George W. Bush that the device was a plutonium-based weapon, an official close to the analysis process is somewhat less certain, suggesting it was most probably a plutonium device.

The article presents information about various new products. Related to the company's popular Super-E brake motors, the new line of Super-Es were designed to handle the rugged service of conveyor use while providing NEMA Premium energy efficiency. SMF 2 series miniature diaphragm pumps are great for high-accuracy dosing of low-viscosity liquids. The infiniton XLi and XLp series XRF analyzers were recently awarded patent approval. The analyzers, or U.S. Patent No, 6,765,986, provide performance superior to that of traditional radioisotope-based XRF analyzers while eliminating the maintenance costs associated with isotope source replacement due to decay.

A list of the journal's webcasts is presented including "Isotope Ratio Techniques to Protect the Quality and Authenticity of Food," "Rapid Speciation and Determination of Vanadium Compounds in Water Samples," and "Fundamentals of Nanoparticle Analysis by ICP-MS."

The article presents various articles of the journal published online including a quiz entitled "How well can you analyze IR spectra?," "Isotope Ratio Techniques to Protect the Quality and Authenticity of Food," and an interview entitled "Advancing Materials Analysis with Imaging."

Focuses on a method developed by Los Alamos National Laboratory scientists to identify isotopes in dirty-bomb debris. Total time that the method can take in identifying the isotopes; Procedures of the method; Drawback of the screening technique.