Development of a mass spectrometry method for the characterization of a series of chitosan

2019 ◽  
Vol 121 ◽  
pp. 89-96 ◽  
Author(s):  
Jingfeng Li ◽  
Lifang Chen ◽  
Zhiyun Meng ◽  
Guifang Dou
Keyword(s):  
Mass Spectrometry ◽  
Spectrometry Method ◽  
Mass Spectrometry Method

An improved capillary isoelectric focusing-mass spectrometry method for high-resolution characterization of monoclonal antibody charge variants

2022 ◽  
Author(s):  
Tian Xu ◽  
Linjie Han ◽  
Alayna M. George Thompson ◽  
Liangliang Sun
Keyword(s):  
Mass Spectrometry ◽  
Monoclonal Antibody ◽  
High Resolution ◽  
Isoelectric Focusing ◽  
Capillary Isoelectric Focusing ◽  
Spectrometry Method ◽  
Mass Spectrometry Method ◽  
Charge Variants

Routine and high-resolution characterization of monoclonal antibody (mAb) charge variants is vital for controlling mAb quality as therapeutics. Capillary isoelectric focusing-mass spectrometry (cIEF-MS) has emerged as a powerful tool for...

GC/MS characterization of volatile components of hydrocolloids from Irvingia gabonensis and Mucuna sloanei seeds

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Gas Chromatography ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Spectrometry Method ◽  
Mass Spectrometry Method ◽  
Chromatography Mass Spectrometry ◽  
Irvingia Gabonensis

Irvingia gabonensis and Mucuna sloanei seeds are among the known soup thickeners used in the preparation of different kinds of soups and local delicacies in Southeast Nigeria. The thickening substances which are hydrocolloids have been isolated and partially characterized using gas chromatography-mass spectrometry method. Eighteen constituents were identified in I. gabonensis comprising aromatic (0.76 %), hydrocarbons (7.19 %), ketones (1.53 %), carboxylic/fatty acids (79.47 %) and esters (11.04 %). Twenty-one constituents were identified in M. sloanei comprising hydrocarbons (22.58 %), esters (19.42 %), fatty acids (45.64 %), amide (5.77 %), aldehyde (4.69 %) and ketones (1.89 %). This research reveals that the seed hydrocolloids of M. sloanei contain more volatile phytochemicals than that of I. gabonensis.

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