Potential for an Atmospheric-Pressure Low-Power Microwave-Induced Plasma Ionization Source for Mass Spectrometry

1997 ◽  
Vol 51 (10) ◽  
pp. 1500-1503 ◽  
Author(s):  
Nohora P. Vela ◽  
Joseph A. Caruso ◽  
R. Duane Satzger
Keyword(s):  
Atmospheric Pressure ◽  
Gas Flow ◽  
Direct Injection ◽  
Sample Introduction ◽  
Ionization Source ◽  
Plasma Ionization ◽  
Microwave Induced Plasma ◽  
Flow Adjustment ◽  
Liquid Sample Introduction ◽  
Carrier Gas Flow

The potential for using the microwave-induced plasma (MIP) as an ionization source is further explored. This source operates at atmospheric pressure, minimizing pumping problems and, through power and gas-flow adjustment, offers the possibility of selecting from elemental spectra to fragmentation spectra resembling those from electron impact sources. The effect of microwave power, carrier gas-flow rate, and injector-prob e configuration in the production of fragment ions is demonstrated with the use of perfluorotributylamine and tetramethyltin. Initial potential for liquid-sample introduction to the MIP is accomplished by using a direct-injection nebulizer (DIN) at higher reproducibility levels than in earlier studies.

Evaluation of a Direct-Injection Nebulizer (DIN) for Liquid Sample Introduction in Helium Microwave-Induced Plasma Mass Spectrometry (MIP-MS)

1995 ◽  
Vol 49 (3) ◽  
pp. 314-319 ◽  
Author(s):  
Jeffrey J. Giglio ◽  
Jianshang Wang ◽  
Joseph A. Caruso
Keyword(s):  
Mass Spectrometry ◽  
Direct Injection ◽  
Sample Introduction ◽  
Liquid Sample ◽  
Microwave Induced Plasma ◽  
Doubly Charged Ions ◽  
Plasma Mass Spectrometry ◽  
Liquid Sample Introduction ◽  
Doubly Charged ◽  
Charged Ions

A direct-injection nebulizer (DIN) has been evaluated for liquid sample introduction in helium microwave-induced plasma mass spectrometry (MIP-MS). A short-term stability test with the direct-injection nebulizer was found to give less than 0.5% RSD for twenty minutes. Isotope abundances for K, Ca, Cr, and Se were determined with less than 10% error on all isotopes. All elements have linear dynamic ranges of two to three orders of magnitude. Detection limits are low to sub-ppb for all elements. Ion lens tuning plays an important role in multielement determinations. Oxide, hydroxide, and doubly charged ions are determined for Cr, As, Sr, Cs, Ba, and Pb. The effect of 10% methanol and high-dissolved salts is investigated.

An aerodynamic assisted miniature mass spectrometer for enhanced volatile sample analysis

The Analyst ◽  
2016 ◽  
Vol 141 (18) ◽  
pp. 5404-5411 ◽  
Author(s):  
Yanbing Zhai ◽  
Ting Jiang ◽  
Guangyan Huang ◽  
Yongzheng Wei ◽  
Wei Xu
Keyword(s):  
Mass Spectrometer ◽  
Atmospheric Pressure ◽  
Detection Sensitivity ◽  
Sample Analysis ◽  
Ionization Source ◽  
Plasma Ionization ◽  
Vacuum Plasma ◽  
Miniature Mass Spectrometer ◽  
Voc Detection

Low ppb-level VOC detection sensitivity was achieved by integrating an in-vacuum plasma ionization source into the continuous atmospheric pressure interfaced miniature mass spectrometer.

Atmospheric pressure plasma assisted reaction chemical ionization for analysis of chlorinated compounds separated by liquid chromatography

2017 ◽  
Vol 32 (9) ◽  
pp. 1757-1765 ◽  
Author(s):  
Joseph E. Lesniewski ◽  
William P. McMahon ◽  
Kunyu Zheng ◽  
Haopeng Wang ◽  
Hamid Badiei ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Atmospheric Pressure ◽  
Chemical Ionization ◽  
Atmospheric Pressure Plasma ◽  
High Sensitivity ◽  
Sample Introduction ◽  
Liquid Sample ◽  
Pressure Plasma ◽  
Liquid Sample Introduction ◽  
High Sensitivity Detection

We report development of an atmospheric pressure plasma assisted reaction chemical ionization (PARCI) source with liquid sample introduction, enabling high sensitivity detection of chlorine in LC-separated compounds.

Atmospheric pressure soft ionization for gas chromatography with dielectric barrier discharge ionization-mass spectrometry (GC-DBDI-MS)

The Analyst ◽  
2017 ◽  
Vol 142 (11) ◽  
pp. 1909-1915 ◽  
Author(s):  
Mario F. Mirabelli ◽  
Jan-Christoph Wolf ◽  
Renato Zenobi
Keyword(s):  
Gas Chromatography ◽  
Dielectric Barrier Discharge ◽  
Atmospheric Pressure ◽  
Barrier Discharge ◽  
Ionization Mass ◽  
Ionization Source ◽  
Dielectric Barrier ◽  
Plasma Ionization ◽  
Orbitrap Mass Spectrometer ◽  
Dielectric Barrier Discharge Ionization

In this study, a gas chromatography (GC) system was interfaced to a high-resolution Orbitrap mass spectrometer by means of an active capillary plasma ionization source, based on dielectric barrier discharge ionization (DBDI).

Sign in / Sign up

Export Citation Format

Share Document