Simultaneous determination of E-2-nonenal and β-damascenone in beer by reversed-phase liquid chromatography with UV detection

2004 ◽  
Vol 1032 (1-2) ◽  
pp. 17-22 ◽  
Author(s):  
L.F. Guido ◽  
J.R. Carneiro ◽  
J.R. Santos ◽  
P.J. Almeida ◽  
J.A. Rodrigues ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Simultaneous Determination ◽  
Reversed Phase ◽  
Uv Detection ◽  
Reversed Phase Liquid Chromatography ◽  
Phase Liquid

scholarly journals Determination of Sulfonamides in Swine Meat by Immunoaffinity Chromatography

2000 ◽  
Vol 83 (4) ◽  
pp. 830-836 ◽  
Author(s):  
Jun Suo Li ◽  
Xi Wang Li ◽  
Jian Xiang Yuan ◽  
Xin Wang
Keyword(s):  
Liquid Chromatography ◽  
Reversed Phase ◽  
Immunoaffinity Chromatography ◽  
Uv Detection ◽  
Reversed Phase Liquid Chromatography ◽  
Specific Antibodies ◽  
Coefficients Of Variation ◽  
Phase Liquid ◽  
Immunoaffinity Columns

Abstract A procedure was developed for the preparation of anti-sulfonamide (SA) group-specific antibodies and immunosorbents. Sulfonamide haptens and conjugates were synthesized by building spacer arms on an N1 group of 4-aminobenzensulfonamide. The anti-SA group-specific antibodies and immunosorbents were prepared successfully. After extraction with methanol–water (8 + 2), sulfamonomethoxine, sulfadimethoxine, and sulfaquinoxaline were cleaned up on immunoaffinity columns and determined by reversed-phase liquid chromatography with UV detection at 270 nm. The recoveries from fortified swine meat (10–100 μg/kg) ranged from 70.8 to 94.1%, with coefficients of variation of 3.4–12.9%. Limits of detection were 1–2 μg/kg.

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