Thermal Ionization Mass Spectrometry | SpringerLink

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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Thermal Ionization Mass Spectrometry (TIMS)

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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Thermal Ionization Mass Spectrometry | KU Geology

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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Coupling Filter-Based Thermal Desorption Chemical Ionization Mass

Filter-based thermal desorption (F-TD) techniques, such as the filter inlet for gases and aerosols, are widely employed to investigate the molecular composition and physicochemical properties of secondary organic aerosol (SOA). Here, we introduce an enhanced capability of F-TD through the combination of a customized F-TD inlet with chemical ionization mass …

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Accurate and precise determination of 90Sr at femtogram level in …

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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DG60 TIMS Thermal Ionization MS

Thermal Ionization Mass Spectrometer. Features and Benefits. Fully software-controlled degassing of up to 60 filaments per cycle. ...

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A compact ion source combining electron-impact and thermal ionization

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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An improved ion source for thermal ionization mass spectrometer

The thermal ionization mass spectrometry (TIMS), owing to its sensitivity, selectivity and precision, is the widely accepted analytical technique for precise and accurate measurements of isotope ratios of various elements in the periodic table [1], [2], [3], [4].TIMS is the work horse for many strategic applications in the nuclear industry and also in the field of geochronology.

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Lithium isotope analysis by thermal ionization mass spectrometry …

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 Spectrometer (TIMS) – …

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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CHAPTER 14: Thermal Ionisation Mass Spectrometry

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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A thermal dissociation–chemical ionization mass spectrometry …

[1] We have developed a thermal dissociation–chemical ionization mass spectrometry (TD-CIMS) technique for fast measurements of a series of peroxyacyl nitrates and dinitrogen pentoxide. Thermally generated acylperoxy radicals react with I − to produce a carboxylate ion that is unique for each parent species. NO 3 resulting from the decomposition …

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Thermal Ionization Mass Spectrometry (TIMS)

Teaching activities, labs, and resources pertaining to Thermal Ionization Mass Spectrometry (TIMS). Application of Sr Isotopic Data to Tuolumne Intrusive Series, Sierra Nevada, CA - In this problem set students are given Rb/Sr and 87 Sr/ 86 Sr data for whole rock and mineral samples from three granitic intrusions in the Sierra Nevada. They use ...

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Thermal Ionization Mass Spectrometry | SpringerLink

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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Mass Spectrometry Ionization Techniques | PPT

3. Introduction of MS Although ionization and desorption/desolvation are usually separate processes, the term "ionization method" is commonly used to refer to both ionization and desorption (or desolvation) methods. The choice of ionization method depends on the nature of the sample and the type of information required from the analysis.

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How does a thermal ionization mass spectrometer work

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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Thermal Ionization Mass Spectrometry

Thermal ionization mass spectrometry (TIMS) is well suited for the precise measurement of isotopic ratios with a precision better than 0.01% (Platzner, 1997). For TIMS measurements, a …

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Finnigan MAT 262 TIMS | SIGMA Shared Lab Facility

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 Ionization Mass Spectrometry (TIMS)

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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Another step ahead in TIMS

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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Pesticide Residue Fast Screening Using Thermal

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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Thermal Ionization Mass Spectrometer

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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Thermal Ionization Mass Spectrometry (TIMS)

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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Thermal Ionization Mass Spectrometer (TIMS) | SpringerLink

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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Phoenix TIMS Thermal Ionization MS | Isotope Ratio MS | Isotopx

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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Thermal Ionization Mass Spectrometer (TIMS) | SpringerLink

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 …

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Portable solvent-assisted thermal desorption ionization mass

Download Citation | On Feb 1, 2025, Sifang Wu and others published Portable solvent-assisted thermal desorption ionization mass spectrometry for highly sensitive detection of illicit drugs in hair ...

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High precision tungsten isotope measurement by thermal ionization mass

In the late 1990s, the first high-precision W isotopic compositions of geological materials were measured for iron meteorites [25], [26] using negative thermal ionization mass spectrometry (N-TIMS), a technique developed earlier by Heumann et al. [27] and Völkening et al. [28].Repeated measurements of W standards on first generation, multiple-collector TIMS …

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Thermal Desorption Low Temperature Plasma Ionization Mass Spectrometry

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 Spectrometer (TIMS) | SpringerLink

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 1940).

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