Selectivity in the base-catalyzed hydrolysis of p-nitrophenyl esters within a reversed-phase liquid chromatography column

1988 ◽  
Vol 53 (17) ◽  
pp. 3985-3988 ◽  
Author(s):  
David A. Jaeger ◽  
Malgorzata Wegrzyn Clennan
Keyword(s):  
Liquid Chromatography ◽  
Reversed Phase ◽  
Reversed Phase Liquid Chromatography ◽  
Chromatography Column ◽  
Phase Liquid ◽  
Hydrolysis Of

Immunoaffinity clean-up of mycotoxins with organic solvent-free elution

2014 ◽  
Vol 7 (2) ◽  
pp. 115-120 ◽  
Author(s):  
J. Stroka ◽  
J. Seidler
Keyword(s):  
Liquid Chromatography ◽  
Organic Solvent ◽  
Ochratoxin A ◽  
Organic Solvents ◽  
Reversed Phase ◽  
Solvent Free ◽  
Reversed Phase Liquid Chromatography ◽  
Chromatography Column ◽  
Phase Liquid

A novel immunoaffinity (IA) clean-up procedure for the isolation of mycotoxins from maize extracts is described. Commonly, mycotoxins are eluted with organic solvents from IA columns after isolation. The new procedure uses water at 70 °C as alternative. The resulting eluate is suitable for direct and complete injection onto a reversed-phase liquid-chromatography column. Evaporation, reconstitution or dilution are not required. The procedure has been tested for a variety of mycotoxins, including deoxynivalenol (DON) zearalenone, T-2 and HT-2 toxins, aflatoxins and ochratoxin A in an array of different matrices. The example of DON in maize is discussed in more detail and evaluated for repeatability (5%, n=10) and recovery (95%, n=10).

Development of an accelerated low-pH reversed-phase liquid chromatography column stability test

2004 ◽  
Vol 1060 (1-2) ◽  
pp. 153-163 ◽  
Author(s):  
Brian C. Trammell ◽  
Cheryl A. Boissel ◽  
Christina Carignan ◽  
Daniel J. O’Shea ◽  
Christopher J. Hudalla ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Reversed Phase ◽  
Low Ph ◽  
Stability Test ◽  
Reversed Phase Liquid Chromatography ◽  
Chromatography Column ◽  
Phase Liquid

Selectivity of aromatic chlorination reactions within a reversed-phase liquid chromatography column

1987 ◽  
Vol 28 (41) ◽  
pp. 4805-4808 ◽  
Author(s):  
David A. Jaeger ◽  
Malgorzata Wegrzyn Clennan ◽  
Donald E. Leyden ◽  
R.S.Shreedhara Murthy
Keyword(s):  
Liquid Chromatography ◽  
Reversed Phase ◽  
Reversed Phase Liquid Chromatography ◽  
Chromatography Column ◽  
Phase Liquid
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