Pyrolysis study on cattle manure: From conventional analytical method to online study of pyrolysis photoionization time-of-flight mass spectrometry

2020 ◽  
Vol 151 ◽  
pp. 104916
Author(s):  
Sirong He ◽  
Congcong Cao ◽  
Jinglan Wang ◽  
Jiuzhong Yang ◽  
Zhanjun Cheng ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Analytical Method ◽  
Time Of Flight ◽  
Cattle Manure ◽  
Pyrolysis Study ◽  
Online Study ◽  
Flight Mass Spectrometry

Online Study on the Pyrolysis of Polypropylene over the HZSM-5 Zeolite with Photoionization Time-of-Flight Mass Spectrometry

2015 ◽  
Vol 29 (2) ◽  
pp. 1090-1098 ◽  
Author(s):  
Yu Wang ◽  
Que Huang ◽  
Zhongyue Zhou ◽  
Jiuzhong Yang ◽  
Fei Qi ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Time Of Flight ◽  
Online Study ◽  
Flight Mass Spectrometry

scholarly journals Alkaloids Profiling of Fumaria capreolata by Analytical Platforms Based on the Hyphenation of Gas Chromatography and Liquid Chromatography with Quadrupole-Time-of-Flight Mass Spectrometry

2017 ◽  
Vol 2017 ◽  
pp. 1-16 ◽  
Author(s):  
María del Mar Contreras ◽  
Noureddine Bribi ◽  
Ana María Gómez-Caravaca ◽  
Julio Gálvez ◽  
Antonio Segura-Carretero
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Liquid Chromatography ◽  
Analytical Method ◽  
Time Of Flight ◽  
Reversed Phase ◽  
Fragmentation Pattern ◽  
Flight Mass Spectrometry ◽  
Fumaria Capreolata ◽  
Analytical Platforms

Two analytical platforms, gas chromatography (GC) coupled to quadrupole-time-of-flight (QTOF) mass spectrometry (MS) and reversed-phase ultrahigh performance liquid chromatography (UHPLC) coupled to diode array (DAD) and QTOF detection, were applied in order to study the alkaloid profile of Fumaria capreolata. The use of these mass analyzers enabled tentatively identifying the alkaloids by matching their accurate mass signals and suggested molecular formulae with those previously reported in libraries and databases. Moreover, the proposed structures were corroborated by studying their fragmentation pattern obtained by both platforms. In this way, 8 and 26 isoquinoline alkaloids were characterized using GC-QTOF-MS and RP-UHPLC-DAD-QTOF-MS, respectively, and they belonged to the following subclasses: protoberberine, protopine, aporphine, benzophenanthridine, spirobenzylisoquinoline, morphinandienone, and benzylisoquinoline. Moreover, the latter analytical method was selected to determine at 280 nm the concentration of protopine (9.6 ± 0.7 mg/g), a potential active compound of the extract. In conclusion, although GC-MS has been commonly used for the analysis of this type of phytochemicals, RP-UHPLC-DAD-QTOF-MS provided essential complementary information. This analytical method can be applied for the quality control of phytopharmaceuticals containing Fumaria extracts currently found in the market.

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