Identification of Peptides Using Gold Nanoparticle-Assisted Single-Drop Microextraction Coupled with AP-MALDI Mass Spectrometry

2005 ◽  
Vol 77 (22) ◽  
pp. 7380-7385 ◽  
Author(s):  
Putty-Reddy Sudhir ◽  
Hui-Fen Wu ◽  
Zi-Cong Zhou
Keyword(s):  
Mass Spectrometry ◽  
Gold Nanoparticle ◽  
Maldi Mass Spectrometry ◽  
Single Drop ◽  
Single Drop Microextraction

scholarly journals Headspace Single-Drop Microextraction Gas Chromatography Mass Spectrometry for the Analysis of Volatile Compounds from Herba Asari

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Guan-Jie Wang ◽  
Li Tian ◽  
Yu-Ming Fan ◽  
Mei-Ling Qi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Particle Size ◽  
Volatile Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Extraction Temperature ◽  
Single Drop ◽  
Chromatography Mass Spectrometry ◽  
Single Drop Microextraction ◽  
Sample Amount

A rapid headspace single-drop microextraction gas chromatography mass spectrometry (SDME-GC-MS) for the analysis of the volatile compounds in Herba Asari was developed in this study. The extraction solvent, extraction temperature and time, sample amount, and particle size were optimized. A mixed solvent of n-tridecane and butyl acetate (1 : 1) was finally used for the extraction with sample amount of 0.750 g and 100-mesh particle size at 70°C for 15 min. Under the determined conditions, the pound samples of Herba Asari were directly applied for the analysis. The result showed that SDME-GC–MS method was a simple, effective, and inexpensive way to measure the volatile compounds in Herba Asari and could be used for the analysis of volatile compounds in Chinese medicine.

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