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Sikharulidze, G. G.; Lezhnev, A. E.

doi:10.1023/a:1025641318893

Cited by 2 publications

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“…An original ion source with glow discharge has been developed. 348,349 It can operate at a much stronger discharge current, creating more dense plasma, than in sources used before. The authors used the special design of the hollow cathode limited by a diaphragm with a hole.…”

Section: Successes In Developing Units Of Mass Spectrometersmentioning

confidence: 99%

Mass Spectrometry in Russia

Заикин

Сысоев

2013

Eur J Mass Spectrom (Chichester)

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The present review covers the main research in the area of mass spectrometry from the 1990s which was about the same time as the Russian Federation emerged from the collapse of the Soviet Union (USSR). It consists of two main parts-application of mass spectrometry to chemistry and related fields and creation and development of mass spectrometric technique. Both traditional and comparatively new mass spectrometric methods were used to solve various problems in organic chemistry (reactivity of gas-phase ions, structure elucidation and problems of identification, quantitative and trace analysis, differentiation of stereoisomers, derivatization approaches etc.), biochemistry (proteomics and peptidomics, lipidomics), medical chemistry (mainly the search of biomarkers, pharmacology, doping control), environmental, petrochemistry, polymer chemistry, inorganic and physical chemistry, determination of natural isotope ratio etc. Although a lot of talented mass spectrometrists left Russia and moved abroad after the collapse of the Soviet Union, the vitality of the mass spectral community proved to be rather high, which allowed the continuation of new developments in the field of mass spectrometric instrumentation. They are devoted to improvements in traditional magnetic sector mass spectrometers and the development of new ion source types, to analysis and modification of quadrupole, time-of-flight (ToF) and ion cyclotron resonance (ICR) analyzers. The most important achievements are due to the creation of multi-reflecting ToF mass analyzers. Special attention was paid to the construction of compact mass spectrometers, particularly for space exploration, of combined instruments, such as ion mobility spectrometer/mass spectrometer and accelerating mass spectrometers. The comparatively young Russian Mass Spectrometry Society is working hard to consolidate the mass spectrometrists from Russia and foreign countries, to train young professionals on new appliances and regularly holds conferences on mass spectrometry. For ten years, a special journal Mass-spektrometria has published papers on all disciplines of mass spectrometry.

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Section: Successes In Developing Units Of Mass Spectrometersmentioning

confidence: 99%

Mass Spectrometry in Russia

Заикин

Сысоев

2013

Eur J Mass Spectrom (Chichester)

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“…analysis of solids utilizing HCGD ion source is configuration of the sample and its position inside the HC cavity, extraction of ions and transporting them to the analyser. Investigations on reduction of a background level in the new HCGD ion source for MS designed by Sikharulidze and Lezhnev (2003) allowed us to suggest three ways of background reduction: (i) formation of a plasma "stopper" at the top of hollow cathode; (ii) optimization of glow discharge parameters and (iii) simultaneously with sample sputtering in the discharge chamber of so-called "getter metals" (Ti, Ta, Nb, Zr, W, Ba), which effectively absorb hydrides, gases and hydrocarbons. Combination of all these factors allows to reduce background of a glow discharge source by four-five orders of magnitude.…”

Section: Hollow Cathode Glow Discharge Mass Spectrometrymentioning

confidence: 99%

State-of-the-art in analytical characterization of high purity solid samples by different spectroscopic methods

Grazhulene

2005

Bull Mater Sci

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Facilities and some results of several spectroscopic methods which have potential applications in the field of analysis of solid high purity substances and which have been elaborated in Russia, will be discussed in this paper. Laser nondispersive atomic fluorescence method with glow discharge cathode sputtering atomiser, may be used for trace element determination as well as a tool for the investigation of technological processes, viz. deposition of thin films. Investigations on reduction of a background level in the new hollow cathode ion source for mass-spectrometry have been carried out. Laser mass spectrometry with tandem laser mass reflectron is successfully designed and applied for gaseous impurities determination in high pure silicon with limit of detection of 10-3-10-5 ppm wt. Several results of the layer-by-layer and bulk trace analysis of solids by high resolution mass spectrometry with radio frequency powered glow discharge ion source with the limits of detection at 10-1-10-3 ppm wt will be presented here. The traditional arc and spark emission technique still finds considerable use. One of the examples considered in the paper is the analysis of metalfullerenes. To overcome the calibration problem the fluorination process inside the electrode crater using zinc fluoride has been investigated.

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Cited by 2 publications

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Mass Spectrometry in Russia

Mass Spectrometry in Russia

State-of-the-art in analytical characterization of high purity solid samples by different spectroscopic methods

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