Metal organic frameworks CAU-1 as new photocatalyst for photochemical vapour generation for analytical atomic spectrometry

2015 ◽  
Vol 30 (2) ◽  
pp. 339-342 ◽  
Author(s):  
Jia Jia ◽  
Zhou Long ◽  
Chengbin Zheng ◽  
Xi Wu ◽  
Xiandeng Hou
Keyword(s):  
Metal Organic Frameworks ◽  
Atomic Spectrometry ◽  
Atomic Fluorescence Spectrometry ◽  
Ultrasensitive Detection ◽  
Vapor Generation ◽  
Atomic Fluorescence ◽  
Analytical Atomic Spectrometry ◽  
Metal Organic ◽  
Photochemical Vapor Generation ◽  
Vapour Generation

CAU-1 MOFs was used as a new photocatalyst for Se-containing photochemical vapor generation from Se(vi) for its ultrasensitive detection by atomic fluorescence spectrometry.

scholarly journals Photochemical vapor generation: a radical approach to analyte introduction for atomic spectrometry

2017 ◽  
Vol 32 (12) ◽  
pp. 2319-2340 ◽  
Author(s):  
Ralph E. Sturgeon
Keyword(s):  
Reaction Mechanisms ◽  
Atomic Spectrometry ◽  
Sample Introduction ◽  
Vapor Generation ◽  
Future Outlook ◽  
Analytical Atomic Spectrometry ◽  
Photochemical Vapor Generation ◽  
Radical Approach

A tutorial review of photochemical vapor generation for enhanced sample introduction with analytical atomic spectrometry is presented, covering experimental hardware, reaction mechanisms, products, interferences and future outlook.

Miniature High Temperature Laminar Diffusion Flames for Analytical Atomic Spectrometry

1981 ◽  
Vol 35 (1) ◽  
pp. 26-35 ◽  
Author(s):  
S. K. Hughes ◽  
R. C. Fry
Keyword(s):  
High Temperature ◽  
Diffusion Flames ◽  
Alkali Halides ◽  
Atomic Spectrometry ◽  
Sample Introduction ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence ◽  
Laminar Diffusion Flames ◽  
Analytical Atomic Spectrometry ◽  
Laminar Diffusion

Miniature high temperature laminar diffusion flames are described for analytical atomic spectrometry. Fuel flow rates below 0.2 liters/min are used and temperatures in excess of 2500 K are maintained in a stable, fuel-rich combustion environment of low background emission. The internal atomizer chamber volume is 1.5 ml (below the burner top). A graphite cup atomizer is used for sample introduction and is “fired” inside the miniature burner head in the presence of “fuel only.” Oxidant diffuses into the fuel zone above the burner top. Compared to conventional electrothermal atomizers, the miniature N2O → H2 diffusion flame greatly reduced particulate light scattering in continuum excited atomic fluorescence spectrometry. In atomic absorption spectrometry, the hot miniature flame serves to effectively reduce the molecular spectral interference due to gaseous diatomic alkali halides. The enhanced gas phase concentration of atomic products presently results in a concentration sensitivity improvement of 30 times over conventional premixed flames used in Eimac continuum excited atomic fluorescence. The improvement in absolute weight sensitivity is 140 times for atomic fluorescence.

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