Rapid classification of White Oak (Quercus alba) and Northern Red Oak (Quercus rubra) by using pyrolysis direct analysis in real time (DART™) and time-of-flight mass spectrometry

2012 ◽  
Vol 95 ◽  
pp. 134-137 ◽  
Author(s):  
Robert B. Cody ◽  
A. John Dane ◽  
Benjamin Dawson-Andoh ◽  
Emmanuel Oluwatosin Adedipe ◽  
Kofi Nkansah
Keyword(s):  
Mass Spectrometry ◽  
Real Time ◽  
Quercus Rubra ◽  
Time Of Flight ◽  
Direct Analysis ◽  
Quercus Alba ◽  
Northern Red Oak ◽  
White Oak ◽  
Flight Mass Spectrometry

scholarly journals Thermal Properties, Isothermal Decomposition by Direct Analysis in Real-Time-Of-Flight Mass Spectrometry and Non Isothermal Crystallization Kinetics of Poly(Ethylene-Co-Vinyl Alcohol)/Poly(ε-Caprolactone) Blend

Crystals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 292
Author(s):  
Abdulaziz Ali Alghamdi ◽  
Hussain Alattas ◽  
Waseem Sharaf Saeed ◽  
Abdel-Basit Al-Odayni ◽  
Ahmed Yacine Badjah Hadj Ahmed ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Real Time ◽  
Crystallization Kinetics ◽  
Isothermal Crystallization ◽  
Vinyl Alcohol ◽  
Time Of Flight ◽  
Direct Analysis ◽  
Isothermal Crystallization Kinetics ◽  
Flight Mass Spectrometry ◽  
Poly Ethylene

A series of poly(ethylene-co-vinyl alcohol)/poly(ε-caprolactone) blends with different compositions were prepared using solvent casting. The miscibility of this pair of polymers was investigated using differential scanning calorimetry (DSC), and proved by a negative Flory interaction parameter value calculated from the Nishi–Wang equation. The miscibility of this blend was also confirmed by scanning electronic microscopy (SEM). The thermal behaviors of the obtained materials were investigated by DSC, thermogravimetric analysis, and direct analysis in real-time–time-of-flight mass spectrometry and the results obtained were very relevant. Furthermore, the crystalline properties of the obtained materials were studied by DSC and X-ray diffraction where the Ozawa approach was adopted to investigate the non-isothermal crystallization kinetics. The results obtained revealed that this approach described the crystallization process well.

Ionization characteristics of glycosides by direct analysis in real time quadrupole-time of flight mass spectrometry

2017 ◽  
Vol 41 (3) ◽  
pp. 1103-1109 ◽  
Author(s):  
Hongmei Yang ◽  
Ge Gao ◽  
Yihan Wang ◽  
Jinrong Liu ◽  
Zongjun Li ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Real Time ◽  
Time Of Flight ◽  
Direct Analysis ◽  
Molecular Ion ◽  
Ion Formation ◽  
Flight Mass Spectrometry

Glycosides were ionized via various different reactions including (de)protonation, molecular ion formation, ISD fragmentation, and the formation of adducts.

Screening of psychoactive components in fresh khat using direct analysis in real time-time of flight-mass spectrometry

2018 ◽  
Vol 1 (3) ◽  
pp. 45 ◽  
Author(s):  
AbdulrhmanM Dhabbah ◽  
AYacine Badjah-Hadj-Ahmed ◽  
AliI Alawi ◽  
WaleedAbdulaziz Al Angari ◽  
BaselF Alrayes
Keyword(s):  
Mass Spectrometry ◽  
Real Time ◽  
Time Of Flight ◽  
Direct Analysis ◽  
Flight Mass Spectrometry

Characterization of Solid Counterfeit Drug Samples by Desorption Electrospray Ionization and Direct-analysis-in-real-time Coupled to Time-of-flight Mass Spectrometry

ChemMedChem ◽  
2006 ◽  
Vol 1 (7) ◽  
pp. 702-705 ◽  
Author(s):  
Facundo M. Fernández ◽  
Robert B. Cody ◽  
Michael D. Green ◽  
Christina Y. Hampton ◽  
Rose McGready ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Real Time ◽  
Time Of Flight ◽  
Desorption Electrospray Ionization ◽  
Direct Analysis ◽  
Counterfeit Drug ◽  
Flight Mass Spectrometry

Validation of Direct Analysis Real Time source/Time-of-Flight Mass Spectrometry for organophosphate quantitation on wafer surface

Talanta ◽  
2015 ◽  
Vol 144 ◽  
pp. 1163-1170 ◽  
Author(s):  
Nathalie Hayeck ◽  
Sylvain Ravier ◽  
Rachel Gemayel ◽  
Sasho Gligorovski ◽  
Irène Poulet ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Real Time ◽  
Time Of Flight ◽  
Direct Analysis ◽  
Wafer Surface ◽  
Flight Mass Spectrometry
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