High-precision and high-accuracy measurement of the natural mass-independent variations of 84 Sr/ 86 Sr using thermal ionization mass spectrometry (TIMS) is crucial for understanding the planetary volatile depletion history and the heterogeneous isotopic reservoirs in the early Solar System. The recently reported μ 84 Sr values [defined as 10 6 × (84 Sr/ 86 Sr …
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Thermal Ionization Mass Spectrometry (TIMS) is a highly sensitive analytical technique used primarily for precise measurement of isotopic compositions within materials. This method is especially valuable in the fields of geology, chemistry, and nuclear science, for determining ages of rocks and minerals (geochronology) through isotopic dating ...
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The new TRITON Plus thermal ionization mass spectrometer features new Compact Discrete Dynode electron multipliers having high stability and linearity over a large dynamic range. They are only 6 to 7 mm wide and fit within the multicollector array. Performance is comparable
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Atoms with low ionization potentials can be ionized by contact with the heated surface of a metal, generally a filament, having a high work function (the energy required to …
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A thermal ionization mass spectrometer consists of four main components: an ion source, a series of electrically charged plates used to focus and accelerate ions generated from the source, an electromagnet surrounding a "flight tube" through which the accelerated ions travel, and a detector system for measuring the intensity of ion beams ...
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A TIMS is a magnetic sector mass spectrometer that is capable of making very precise measurements of isotope ratios of elements that can be ionized thermally, usually by passing a current through a thin metal ribbon or ribbons under …
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U-Pb geochronology by Isotope Dilution Thermal Ionization Mass Spectrometry (ID-TIMS) is the gold standard for determining precise and accurate dates and rates of geological events throughout Earth's history (Hanchar and Hoskin, 2003; Bowring et al., 2006; e and Baxter, 2017). The abundance of high-U minerals in most rock types and the ...
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A thermal desorption chemical ionization mass spectrometer has been developed for real time, quantitative chemical analysis of ultrafine particles.
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Thermal Ionization Mass Spectrometer. Share. Tweet Listen. English; Türkçe; General Information. Isotopes are atoms of the same element with the same proton but different numbers of neutrons and, therefore, different masses. Atoms formed by the radioactive decay of other atoms are called radiogenic isotopes. Radiogenic isotopes provide ...
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Thermal desorption ambient ionization mass spectrometry for emergency toxicology. Hung Su, Hung Su. Department of Chemistry, National Sun Yat-Sen University, Kaohsiung, Taiwan. ... Ambient ionization mass spectrometry, a state-of-the-art technology, has been proved to be a fast, accurate, and user-friendly tool for rapidly identifying toxicants ...
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Thermal Ionization Mass Spectrometer (TIMS) is an analytical tool for accurate isotopic ratio measurement of elements. It consists of a thermal ionization source for ionization of the sample, sector magnet for separation of ions and Faraday …
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A mass spectrometric method based on the thermal ionization of lithium tetraborate has been developed for the isotopic analysis of lithium. The measurement of Li/sub 2/BO/sub 2//sup +/ reduces isotopic fractionation during analysis compared to the normal use of Li/sup +/ ions. The technique is capable of achieving a relative precision of 1.3 per thousand (1sigma) in the …
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Thermal ionization mass spectrometry is a highly precise method of measuring the isotopic compositions of target elements, with wide applications in geochemistry, …
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A thermal ionization mass spectrometry (TIMS) method is described for the determination of ultra-trace levels of plutonium isotopes in human urine samples. The method has been validated through ...
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Ion sources are a crucial component of mass spectrometers. 1–3 In the field of high-precision mass spectrometry of exotic nuclei, such as measurements with Multiple-Reflection Time-Of-Flight Mass Spectrometer (MR-TOF-MS) 4–8 or Penning traps, 9,10 they are needed to supply reference ions in a wide range of masses; the reference ions with well-known masses …
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ZMS-DF-TIMS-01 Thermal ionization mass spectrometer Based on many years of experience in the research and design of magnetic mass spectrometer, combined with the latest technological, we developed a thermal ionization mass spectrometer for high-precision isotope ratio analysis. The instrument has excellent linearity and stability, and can provide reliable test data for many …
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Thermal Ionization Mass Spectrometer. Features and Benefits. Fully software-controlled degassing of up to 60 filaments per cycle. ...
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Thermal ionization mass spectrometry (TIMS) is designed to obtain high precision isotopic information. Ions are created by passing a current through a thin metal ribbon or ribbons under vacuum. The ions generated are accelerated under vacuum to a magnetic sector where the ions are separated according to their m/z ratio and a detection system.
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Thermal Ionization Mass Spectrometry (TIMS) is a technique that measures isotopic ratios used in environmental, planetary, geochemistry and nuclear markets. Data produced by our TIMS instrument is of high accuracy and precision. For many elements this is in the low ppm range. The TIMS instrument boasts automatic, unattended, batch analysis of ...
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Thermal ionization mass spectrometry (TIMS) is designed to obtain high precision isotopic information. Ions are created by passing a current through a thin metal ribbon or ribbons under vacuum. The ions generated are accelerated under …
WhatsApp: +86 18221755073
Thermal Ionization Mass Spectrometry (TIMS) is a highly sensitive analytical technique used primarily for precise measurement of isotopic compositions within materials. This method is especially valuable in the fields …
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In this work, the detection characteristics of a large group of common pesticides were investigated using a multi-scheme chemical ionization inlet (MION) with a thermal desorption unit (Karsa Ltd.) connected to an …
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Extract high-precision isotope ratio information from your samples with the Thermo Scientific™ Triton™ Series Multicollector Thermal Ionization Mass Spectrometer (TIMS). The Thermo Scientific™ Triton™ XT TIMS integrates the established field-proven technologies from the Triton Series instruments with the latest developments in ...
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A novel method for the determination of ultra-trace level 90Sr has been recently developed applying thermal ionization mass spectrometry (TIMS). The method includes the chemical separation of Zr ...
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A thermal ionization mass spectrometer consists of four main components : an ion source, a series of electrically charged plates used to focus and accelerate ions generated from the source, an electromagnet surrounding a "flight tube" through which the accelerated ions travel, and a detector system for measuring the intensity of ion beams ...
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The Thermal Ionization Mass Spectrometer (TIMS) is a sophisticated solid source mass spectrometer that can measure very precise isotopic ratios for their applications in various …
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The Thermal Ionization Mass Spectrometry (TIMS) Laboratory is under the supervision of Dr J.D. Walker. The KU TIMS laboratory in Nichols Hall houses a 1987 version, full automated VG Sector variable 6-collector TIMS with a 10-sample turret, Daly multiplier, optical pyrometer, etc. The Sector was purchased with substantial funding from NSF and ...
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A thermal ionization mass spectrometer (TIMS) consists of (1) an ion source (here a solid source), (2) a magnet (analyzer) that splits the ions depending on their mass to charge ratio (momentum filter), and (3) one or multiple collectors that measure the magnitude of the ion beams such that isotopic ratios of a given element can be computed (Nier-type spectrometer, Nier, …
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The Phoenix TIMS (thermal ionization mass spectrometer) is designed to measure isotope ratios of non-gaseous elements with the highest sensitivity and precision. Careful design of the ion extraction optics combined with high vacuum around the ionizing filament results in a highly sensitive instrument, while low-noise, stable detectors that ...
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In addition to thermal ionization mass spectrometry (TIMS), he also discusses applications of ICP-MS. Furthermore, alongside detailed protocols on sample preparation and mass spectrometric measurements, numerous practical hints are given. A must-have handy guide for all isotope geochemists and anyone involved in isotope analysis.
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DOI: 10.1016/S1872-2040(16)60993-3 RESEARCH PAPER Thermal Desorption Low Temperature Plasma Ionization Mass Spectrometry for Rapid and Sensitive Detection of Pesticides in Broomcorn WANG Shuang1,2, WANG Zhe3, HOU Ke-Yong1,*, LI Hai-Yang1,* 1 Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics ...
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Thermal Ionization Mass Spectrometry (TIMS) is used for very precise isotope ratio measurements. Purified samples are thermally ionized by passing a current through a thin metal filament (or filaments). Mass resolved ion beams are directed into multiple collectors and converted into voltage. Ratios of the different voltages yield precise ...
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Thermal ionisation, also known as surface ionisation, was one of the first ionisation techniques developed for mass spectrometry, having been invented as early as 1918. The ionization process, described by the empirically derived "fractionation laws", is widely understood.
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In addition to thermal ionization mass spectrometry (TIMS), he also discusses applications of ICP-MS. Furthermore, alongside detailed protocols on sample preparation and mass spectrometric measurements, numerous practical hints are given. A must-have handy guide for all isotope geochemists and anyone involved in isotope analysis.
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This work describes the first exploration of metal–organic frameworks (MOFs) as "next-generation" ion emitters for thermal ionization mass spectrometry (TIMS). MOFs were identified as promising candidates for this application given the synthetic control over their desired structural properties. This tunability results in well-ordered, high-surface-area, high-porosity …
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