Enrichment, Resolution, and Identification of Nickel Porphyrins in Petroleum Asphaltene by Cyclograph Separation and Atmospheric Pressure Photoionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

2010 ◽  
Vol 82 (1) ◽  
pp. 413-419 ◽  
Author(s):  
Kuangnan Qian ◽  
Kathleen E. Edwards ◽  
Anthony S. Mennito ◽  
Clifford C. Walters ◽  
J. Douglas Kushnerick
2009 ◽  
Vol 81 (7) ◽  
pp. 2799-2803 ◽  
Author(s):  
Markus Haapala ◽  
Jeremiah M. Purcell ◽  
Ville Saarela ◽  
Sami Franssila ◽  
Ryan P. Rodgers ◽  
...  

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