Molecular recognition and quantitative analysis of free and combinative selenium speciation in selenium-enriched millets using HPLC-ESI-MS/MS

2021 ◽  
pp. 104333
Author(s):  
Xiaoshuang Zou ◽  
Keyi Shen ◽  
Can Wang ◽  
Jun Wang
Keyword(s):  
Quantitative Analysis ◽  
Molecular Recognition ◽  
Selenium Speciation ◽  
Esi Ms

Development of quantitative analytical method for volatile thiol compound with LC-ESI-MS as nonvolatile derivative by integrating a thiol-specific derivatization

2021 ◽  
Author(s):  
Yusuke Kawano ◽  
Kengo Suzuki ◽  
Iwao Ohtsu
Keyword(s):  
Quantitative Analysis ◽  
Electrospray Ionization ◽  
Efficient Method ◽  
Analytical Method ◽  
Coffee Bean ◽  
Thiol Compound ◽  
Esi Ms ◽  
Volatile Thiols

Abstract Generally, volatile thiols are hard to be measured with ESI (electrospray ionization)-type LC-MS due to the volatility. Therefore, we here evaluated the pretreatment of their S-bimanyl derivatization by monobromobimane to enable the detection as nonvolatile derivative. Consequently, we successfully developed the convenient and efficient method through the quantitative analysis of 2-furanmethanethiol (volatile thiol odorant of coffee aroma) in coffee bean.

scholarly journals Ion-exchange chromatography followed by ESI-MS for quantitative analysis of sugar monophosphates from glucose catabolism

2006 ◽  
Vol 17 (1) ◽  
pp. 104-107 ◽  
Author(s):  
James J. Walters ◽  
Michael A. Grayson ◽  
Michael L. Gross ◽  
Maureen Hughes ◽  
Georgia Shearer ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Ion Exchange ◽  
Ion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Esi Ms ◽  
Glucose Catabolism

Quality Assessment and Quantitative Analysis of Flavonoids from Tea Samples of Different Origins by HPLC-DAD-ESI-MS

2008 ◽  
Vol 56 (10) ◽  
pp. 3444-3453 ◽  
Author(s):  
Tahira Sultana ◽  
Guenther Stecher ◽  
Robert Mayer ◽  
Lukas Trojer ◽  
Muhammad Nasimullah Qureshi ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Quality Assessment ◽  
Esi Ms ◽  
Different Origins

A rapid HPLC/ESI-MS/MS method for quantitative analysis of isovalerylshikonin in rat plasma

2009 ◽  
pp. n/a-n/a
Author(s):  
MeiXiang Zhu ◽  
Yanbing Gao ◽  
Zhen Wu ◽  
YuFen Zhao
Keyword(s):  
Quantitative Analysis ◽  
Rat Plasma ◽  
Esi Ms

scholarly journals Secondary metabolites of three endemic Centaurea L. species

2014 ◽  
Vol 79 (11) ◽  
pp. 1355-1362 ◽  
Author(s):  
Vele Tesevic ◽  
Ivana Aljancic ◽  
Slobodan Milosavljevic ◽  
Vlatka Vajs ◽  
Iris Djordjevic ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Nmr Spectroscopy ◽  
Secondary Metabolites ◽  
Sesquiterpene Lactone ◽  
1H Nmr ◽  
13C Nmr ◽  
1H Nmr Spectroscopy ◽  
13C Nmr Spectroscopy ◽  
Esi Ms ◽  
Aerial Parts

The aerial parts of three endemic Centaurea L. species, namely C. tomorosii Micevski, C. soskae Hayek and C. galicicae Micevski, afforded sesquiterpene lactone cnicin (1) and seven flavonoids: apigenin (2), isokaempferide (3), hispidulin (4), eupatorin (5), cirsimaritin (6), santaflavone (7) and salvigenin (8). The structures of the isolated compounds were determined by UV, 1H NMR and 13C NMR spectroscopy and HR-ESI-MS spectrometry. 1H NMR spectroscopy was used as a method for quantitative analysis of sesquiterpene lactone cnicin.

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