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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 reports on the need for a long-term solutions to the sudden shortage to technetium-99M in the U.S. It states that patients in the U.S. received about 2.3 million doses of diagnostic radiopharmaceuticals annually in the past few years. The American Medical Isotopes Production Act if passed would mandate that within seven years of the bill's passing, there would be a U.S.-produced supply of critical medical 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 offers information on Geotraces, a research program which aims to understand how the broad array of trace elements and isotopes in the ocean behave and how their behavior ultimately affects the global carbon cycle and climate. Chemical oceanographers need to characterize distributions of trace elements and isotopes in the ocean to establish a baseline for future comparison before human activities elicit further changes.

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.

The article inform Bruce Power in March 2019 completed its first harvest of medical-grade cobalt-60, which will be used to help diagnose and treat brain and breast cancers. Topic include the power facility receives Co-59 pellets and slugs from a manufacturer (which sources them from a mine), and they are then installed as adjuster rods in a reactor and activated to become Co-60.

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.

Reports on the emergence of biomedical and environmental applications for accelerator mass spectroscopy (AMS). Role of AMS in nutrition research; Measurement of the ratio between radioisotopes and stable isotopes; Removal of interferences with the same nominal mass-to-charge ratio as the radioisotope of interest.

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.

Presents information on the language of isotope effects. Information on isotopes; Reference to a paper published in 1947; Details on what the paper said about isotopes; Identification of how isotopes coexist wit different elements; How it affects the natural world. INSETS: A man of many talents;A woman with a quick mind.

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 focuses on the technology of positron emission tomography (PET) which can help doctors and researchers capture detailed three-dimensional images of molecular processes occurring in the human body. A positron-emitting isotope or radiotracer is injected into patients or animals and record the radiation emitted with a PET scanner. Chemists design tracers containing fluorine-18 to mimic or target molecules or tissues in the body.

The article discusses the benefits of isotope clumping in study of Earth's environment and paleoclimate. Topics discussed include use of mass spectrometers in research works related to isotope clumping, difference in isotope clumping and isotope chemistry; a study by researchers Shuhei Ono and Daniel A. Stolper regarding models for microbial methane production. INSET: ISOTOPE CLUMPING 101.

A letter to the editor is presented in response to the article "Celebrating the Isotope" by George B. Kauffman in the December 2, 2013 issue.

The article reports on the process being developed by researchers at National Research Universal (NRU) in Canada to produce medical isotopes without the need for a nuclear reactor.

The author points out the need to address policy and market failures that could lead to more shortage of medical isotopes. He notes the shortage of the medical isotope molybdenum-99 (Mo-99) in August 2010. He claims that there is little or no action are being taken by producers, users or governments to ensure that there will enough supply of Mo-99. He believes that irradiation and processing services prices should include a realistic margin based on the full costs of production.

The article reports that researchers led by Edward D. Young and Issaku E. Kohl of UCLA have revealed that there was a substantial mixing of water and rock between both planetary bodies during collision, leading to common, averaged oxygen isotope ratios on Earth and the moon-forming debris.

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."

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.

Cites several data on the chemical elements einsteinium and fermium. Atomic masses; Radioactivity of the isotopes of both elements; Description of the appearance of both elements.

The article focuses on a report, which highlights that emission rates of helium has exceed by orders of magnitude the rate at which conventional wisdom indicates that isotope is created via decay of uranium and thorium in the crust of Earth.

The article presents information that the U.S. Government Accountability Office is seeking clarification from the U.S. Department of Energy regarding the setting of prices for the isotopes.

The article focuses on a study which produced medical imaging isotope technetium-99m from hospital cyclotrons. Researchers developed a method to produce technetium-99m that involved the preparation of solid targets of molybdenum-100 and bombardment with protons generated in a cyclotron. They concluded that their method provides hope to address medical imaging isotope shortages.

The article focuses on the different types of items of forensic or economic interest, whose origins can be pinpointed thorough isoscape analysis.

The article reports that House Energy and Commerce Committee submitted the H.R. 3276 Bill on October 14, 2009 regarding the supply of molybdenum-(Mo) 99 in U.S. for medical isotopes. The bill permits the domestic production of Mo along with the elimination of exporting process for uranium within seven years. Moreover, the bill entails a 163 million dollars fund to support the Department of Energy (DOE) in carrying out domestic production of Mo without the utilization of uranium.

The article offers news briefs related to laboratory technology. A 15 million dollar-contract was awarded to PerkinElmer Inc. for its rubidium atomic-frequency standards by the ITT Corp. Systems Divisions. Rigaku Corp. has unveiled its NEX CG, a new benchtop energy dispersive X-ray fluorescence spectrometer. Los Gatos Research has introduced its second-generation Liquid Water Isotope Analyzer that is base on cavity-enhanced laser measurements.

The article focuses on the water vapor isotope data, a valuable tool for an accurate climate modeling. An international research team led by Christian Frankenberg of the Netherlands Institute for Space Research collected the first water vapor isotope data obtained in the lower troposphere, where the majority of water vapor is found, with the use of satellite-based absorption spectroscopy. The researchers generated a global map revealing variations in atmospheric water vapor.

The article focuses on a study which shows that billion years old sulfur isotope signature in rocks might not have been caused by an oxygen-poor atmosphere. It notes that the 2.4 billion-year-old geological boundary has always been used to mark Earth's shift to an oxygen-rich atmosphere. It also discusses geochemistry professor Hiroshi Ohmoto and colleagues' study which suggests that the isotope signature were created by chemisorption processes and could be produced in an oxygenated environment.

The article discusses the asymmetric reaction produced by carbon isotope chirality. According to the study of Kenso Soai and colleagues of Tokyo University of Science in Japan, the addition of zinc alkoxide made from an isotopically substituted alcohol would result to the pyrimidyl alkanol product's enantiomeric excess. Accordingly, the excess would then become amplified due to asymmetric autocatalysis.

The article highlights the results of a chemical isotope analysis which reveal that the vast majority of beef and chicken served in fast-food eateries is raised on a diet of corn, and that corn oil is frequently used to cook fries. The isotope survey is the first study to demonstrate corn's central role in burgers and fries.

The article relates stories on the Internet related to the food industry in 2008. These include an isotope test developed by a scientist from New Zealand for organic foods, another on a movement in Alabama and Tennessee that promotes the consumption of locally produced crops and the appearance of an unidentified virus in tomato processing fields in Northern California.

The article reports on the shortage of medical isotopes in Europe. According to the European Association of Nuclear Medicine, nuclear medicine clinics can no longer carry out a large part of their diagnostic and therapeutic activities due to the shortage of isotopes. The isotopes are used in over 80 percent of routine nuclear-imaging tests for procedures, including cardiac blood-flow imaging and bone scanning.

The article shows that the hydropyrolysis process can detect illicit levels of steroids in urine. Colin Snape, a Nottingham professor of chemical technology and chemical engineering, said that by refining the measurements of carbon 12 and carbon 13, an accurate test on the presence of illegal steroids can be produced. Chemical engineers said that this technique can be available in the market in time for the London Olympics.

The article reports on the results of a study conducted by geochemist Thure E. Cerling and ecologist James R. Ehleringer which reveals that the isotope ratios of human hair correlate with the isotope ratios of local tap water and can be used to track where people have been. The information on isotope values in drinking water could be useful in forensic, anthropological and archaecological studies.

The article reports that a team of researchers at the National Superconducting Cyclotron Laboratory at Michigan State University have expanded the neutron drip lines of magnesium and aluminum by adding neutron-rich isotopes. A description of the experimental setup and measurement method is presented. According to the article, neutron drip line is the limiting number of neutrons that can be bound within an atomic nucleus.

The article features the new nuclear magnetic resonance spectroscopy technique which is useful to measure the dynamics of highly mobile amino acid in proteasome cavity. Invented by postdoc Remco Sprangers and biochemistry professor Lewis E. Kay of the University of Toronto, this technique involves two aspects including isotope-labeling scheme and transverse relaxation optimized spectroscopy.

The article presents information on upcoming conferences related to the nuclear power plant industry. The 6th International Exhibition on Nuclear Power Industry, Nuclear 2005 will be held from April 6-8, 2005 in Shanghaimart, Shanghai. The 5th International Conference on Isotopes, will be held from April 25-29, 2005 in Brussels, Belgium. The International Congress on Advances in Nuclear Power Plants will be organized from May 15-19, 2005 in Seoul, Korea. The 2005 ANS annual meeting, The Next 50 Years: Creating Opportunities, will be held from June 5-9, 2005 in San Diego, California.

Measures rutherfordium fluoride (Rf) distribution coefficients by a rapid chromatographic method. Examination of the relativistic molecular orbital calculations of isotopes; Analysis of the distribution coefficient for Rf on the ion-exchange column; Cause of electron configurations and oxidation states of heavier elements.