Gas Chromatography–Mass Spectrometry Analysis of High-Purity Volatile Inorganic Hydrides

Sozin, А. Yu.; Krylov, V. A.; Chernova, O. Yu.; Sorochkina, T. G.; Kotkov, A. P.; Grishnova, N. D.; Skosyrev, A. I.; Pushkarev, G. V.

doi:10.1134/s1061934821030126

Cited by 5 publications

(3 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Introductionmentioning

confidence: 99%

“…With the rapid development of the national economy, the gas industry, especially high-purity, ultra-high-purity gases, and the electronic gas industry, is also booming [1][2][3] . In various fields, including semiconductor, medical, aerospace, energy, and chemical industries, the demand for various industrial gases is increasing day by day, not only in terms of quantity but also quality, that is, the demand for high-purity gases is more and more [4,5] . The detection of trace impurities in gases is a key link in the production of high-purity gases and gases for the electronics industry, and the analysis of trace impurities in these gases has always been a difficult point for chromatographic analysis [6,7] .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Research on the minimum detection limit for measuring high-purity gases by gas chromatography

Liu,

Cheng,

Han

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

At present, the application fields of high-purity gases (purity reached 99.999% and above) include the semiconductor manufacturing industry, chemical analysis, fuel cells, aerospace, medicine, etc., and the quality and purity requirements of high-purity gases are also getting higher and higher. As the only detector that can detect ppb-level trace impurities, the pulsed discharge helium ionization detector (PDHID) is the most used detector in the field of high-purity gases. The minimum detection limit of existing PDHID-related analysis methods is usually calculated theoretically. In order to verify the actual minimum detection limit of PDHID, a multi-group gas distribution system was used in this paper to dilute the permanent gas components in the high-purity gas, and the gas chromatograph with pulsed discharge helium ionization detector (GC-PDHID) was used to detect the obtained different concentrations of standard gases. The experimental results showed that PDHID possessed high sensitivity, good linearity, and a wide linear range. The actual minimum detection limit for the permanent gas components in the high-purity gas could reach the ng/g (ppb) level, which could realize the detection of ultra-low concentration samples, and further verify the actual minimum detection limit of PDHID. This experiment provides a reference basis for the analysis of trace gases in the gas industry, especially in industries such as high-purity and ultra-high-purity gases and gas for the electronics industry, and is of great significance in actual production work.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on the minimum detection limit for measuring high-purity gases by gas chromatography

Liu,

Cheng,

Han

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…One of the important instruments in the field of analytical chemistry is the gas chromatograph mass spectrometer (GC-MS) [1,2]-an instrument that is able to separate, detect and identify many compounds that reside within analyzed samples. The GC vaporizes the compounds, separates them in time and then outputs them into the MS [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. In the common quadrupole based MS [20,21] the molecules are ionized and are then focused by a series of ion-lenses and guided into the quadrupole mass filter, which has a scan like operating procedure: the voltages on its rods, if kept constant, allow only a small range of m/z values to pass and reach the ion detector, while all other ions collide with the rods and neutralize.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Controller for Super Sonic Molecular Beam Gas Chromatograph Mass Spectrometer

Flaxer

2022

Separations

View full text Add to dashboard Cite

This paper presents a new, comprehensive digital circuit used for the control of a novel gas chromatograph mass spectrometer (GC-MS) interface that is based on supersonic molecular beam (SMB). The circuit includes a Texas Instruments 150 MHz digital signal controller (DSC), high voltage amplifiers for 8 independent channels and 4 independent channels of high resolution pulse width modulation (PWM). The circuit, along with a sophisticated embedded program and a custom made personal computer (PC) application, control all aspects of the interface: smart filament emission-current stabilization, static and scanning mass-dependent ion-source voltages, transfer-line heater proportional integral differential (PID) controls with thermocouple feedbacks, on/off valves, relays and several peripheral device controls that enable the full operation of a turbo-molecular vacuum pump, and of gas flow and pressure controllers. All aspects of this comprehensive controller were successfully tested. The signal for the 450 Th ion (C32H66) for example increased by 123% which is a significant increase. It is obvious that correctly tuned dynamic voltages can guarantee the optimal signal for each mass.

show abstract

Prospects for the Development of Methods for the Analysis of High-Purity Volatile Substances

et al. 2023

View full text Add to dashboard Cite

Gas Chromatography–Mass Spectrometry Analysis of High-Purity Volatile Inorganic Hydrides

Cited by 5 publications

References 36 publications

Research on the minimum detection limit for measuring high-purity gases by gas chromatography

Research on the minimum detection limit for measuring high-purity gases by gas chromatography

Comprehensive Controller for Super Sonic Molecular Beam Gas Chromatograph Mass Spectrometer

Prospects for the Development of Methods for the Analysis of High-Purity Volatile Substances

Contact Info

Product

Resources

About