scholarly journals Easily fabricated ion source for characterizing mixtures of organic compounds by direct analysis in real time mass spectrometry

2017 ◽  
Vol 9 (34) ◽  
pp. 5065-5074 ◽  
Author(s):  
Kathleen T. Upton ◽  
Katherine A. Schilling ◽  
J. L. Beauchamp
Keyword(s):  
Mass Spectrometry ◽  
Real Time ◽  
Organic Compounds ◽  
Direct Analysis ◽  
Ion Source ◽  
Ambient Mass Spectrometry ◽  
Assembly Cost

The EZ-DART ion source for ambient mass spectrometry, with simplified construction, minimal assembly cost, and versatile sampling capabilities, is described.

scholarly journals Coupling of planar chromatography with Direct Analysis in Real Time mass spectrometry

2012 ◽  
Vol 10 (3) ◽  
pp. 703-710 ◽  
Author(s):  
Gertrud Morlock ◽  
Elena Chernetsova
Keyword(s):  
Mass Spectrometry ◽  
Real Time ◽  
Gas Flow ◽  
Direct Analysis ◽  
Ion Source ◽  
Ionization Mass ◽  
Planar Chromatography ◽  
Ionization Source ◽  
Desorption Ionization ◽  
Developing Area

AbstractDirect Analysis in Real Time mass spectrometry (DART-MS) is an emerging and rapidly developing area of ambient desorption ionization mass spectrometric techniques. Its coupling with planar chromatography is especially promising, as compared to other ambient desorption ionization techniques, because it does not require the use of liquids that may distort the shape of a spot by diffusion effects. In the first publications on TLC/HPTLC-DART-MS, due to the fixed, horizontally aligned supply of the gas flow from the DART ionization source to the MS inlet, the introduction of HPTLC/TLC plates as cut strips was inconvenient for quantitation, and the repeatability was very low due to the manual positioning. Recently a new version of the DART ion source was suggested, which allows adjusting the angle of the DART gas stream and the use of a motorized rail, thereby, improving highly the capabilities of TLC/HPTLC-DART-MS. This comprehensive review describes the development and analytical capabilities of TLC/HPTLC-DART-MS, and the general DART-MS perspectives for surface analysis or imaging MS.

scholarly journals Direct Analysis in Real Time Mass Spectrometry for the Nondestructive Investigation of Conservation Treatments of Cultural Heritage

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Marcello Manfredi ◽  
Elisa Robotti ◽  
Greg Bearman ◽  
Fenella France ◽  
Elettra Barberis ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Cultural Heritage ◽  
Real Time ◽  
Direct Method ◽  
High Sensitivity ◽  
Direct Analysis ◽  
Dead Sea ◽  
Ion Source ◽  
Conservation Strategies ◽  
Analytical Methodology

Today the long-term conservation of cultural heritage is a big challenge: often the artworks were subjected to unknown interventions, which eventually were found to be harmful. The noninvasive investigation of the conservation treatments to which they were subjected to is a crucial step in order to undertake the best conservation strategies. We describe here the preliminary results on a quick and direct method for the nondestructive identification of the various interventions of parchment by means of direct analysis in real time (DART) ionization and high-resolution time-of-flight mass spectrometry and chemometrics. The method has been developed for the noninvasive analysis of the Dead Sea Scrolls, one of the most important archaeological discoveries of the 20th century. In this study castor oil and glycerol parchment treatments, prepared on new parchment specimens, were investigated in order to evaluate two different types of operations. The method was able to identify both treatments. In order to investigate the effect of the ion source temperature on the mass spectra, the DART-MS analysis was also carried out at several temperatures. Due to the high sensitivity, simplicity, and no sample preparation requirement, the proposed analytical methodology could help conservators in the challenging analysis of unknown treatments in cultural heritage.

Temperature-dependent release of volatile organic compounds of eucalypts by direct analysis in real time (DART) mass spectrometry

2009 ◽  
Vol 23 (15) ◽  
pp. 2241-2246 ◽  
Author(s):  
Simin D. Maleknia ◽  
Teresa M. Vail ◽  
Robert B. Cody ◽  
David O. Sparkman ◽  
Tina L. Bell ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Volatile Organic Compounds ◽  
Real Time ◽  
Organic Compounds ◽  
Direct Analysis ◽  
Temperature Dependent ◽  
Dart Mass Spectrometry ◽  
Volatile Organic
Sign in / Sign up

Export Citation Format

Share Document