Thermodynamic studies on LiNbO 3 (s) and Li 3 NbO 4 (s) using Knudsen effusion quadrupole mass spectrometry and differential scanning calorimetry

2017 ◽  
Vol 714 ◽  
pp. 681-686 ◽  
Author(s):  
Sumanta Mukherjee ◽  
Deepak Rawat ◽  
Smruti Dash
Keyword(s):  
Mass Spectrometry ◽  
Differential Scanning Calorimetry ◽  
Quadrupole Mass ◽  
Scanning Calorimetry ◽  
Knudsen Effusion ◽  
Thermodynamic Studies ◽  
Quadrupole Mass Spectrometry

scholarly journals Solid state and sub-cooled liquid vapour pressures of substituted dicarboxylic acids using Knudsen Effusion Mass Spectrometry (KEMS) and Differential Scanning Calorimetry

2010 ◽  
Vol 10 (10) ◽  
pp. 4879-4892 ◽  
Author(s):  
A. M. Booth ◽  
M. H. Barley ◽  
D. O. Topping ◽  
G. McFiggans ◽  
A. Garforth ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Differential Scanning Calorimetry ◽  
Solid State ◽  
Dicarboxylic Acids ◽  
Estimation Methods ◽  
Scanning Calorimetry ◽  
Knudsen Effusion ◽  
Oh Groups ◽  
Knudsen Effusion Mass Spectrometry ◽  
The Impact

Abstract. Solid state vapour pressures of a selection of atmospherically important substituted dicarboxylic acids have been measured using Knudsen Effusion Mass Spectrometry (KEMS) over a range of 20 K (298–318 K). Enthalpies of fusion and melting points obtained using Differential Scanning Calorimetry (DSC) were used to obtain sub-cooled liquid vapour pressures. They have been compared to estimation methods used on the E-AIM website. These methods are shown to poorly represent – OH groups in combination with COOH groups. Partitioning calculations have been performed to illustrate the impact of the different estimation methods on organic aerosol mass compared to the use of experimental data.

scholarly journals Solid state and sub-cooled liquid vapour pressures of substituted dicarboxylic acids using Knudsen Effusion Mass Spectrometry (KEMS) and Differential Scanning Calorimetry

2010 ◽  
Vol 10 (2) ◽  
pp. 5717-5749
Author(s):  
A. M. Booth ◽  
M. H. Barley ◽  
D. O. Topping ◽  
G. McFiggans ◽  
A. Garforth
Keyword(s):  
Mass Spectrometry ◽  
Differential Scanning Calorimetry ◽  
Solid State ◽  
Dicarboxylic Acids ◽  
Estimation Methods ◽  
Scanning Calorimetry ◽  
Knudsen Effusion ◽  
Oh Groups ◽  
Knudsen Effusion Mass Spectrometry ◽  
The Impact

Abstract. Solid state vapour pressures of a selection of substituted dicarboxylic acids have been measured using Knudsen Effusion Mass Spectrometry (KEMS). Enthalpies of fusion and melting points obtained using Differential Scanning Calorimetry (DSC) were used to obtain sub-cooled liquid vapour pressures. They have been compared to estimation methods used on the E-AIM website. These methods are shown to poorly represent -OH groups in combination with COOH groups. Partitioning calculations have been performed to illustrate the impact of the different estimation methods on organic aerosol mass compared to the use of experimental data.

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