scholarly journals Retention behavior of alkyl bonded superficially porous silica in the separation of alkylbenzenes with high pressure liquid chromatography.

1977 ◽  
Vol 25 (5) ◽  
pp. 1157-1158 ◽  
Author(s):  
FUSAKO TAKANO ◽  
TAKENORI TANIMURA
Keyword(s):  
High Pressure ◽  
Liquid Chromatography ◽  
High Pressure Liquid Chromatography ◽  
Porous Silica ◽  
Retention Behavior

Resolution of Aflatoxins B1, B2, G1, and G2 by High-Pressure Liquid Chromatography

1976 ◽  
Vol 59 (1) ◽  
pp. 101-105 ◽  
Author(s):  
Walter A Pons
Keyword(s):  
High Pressure ◽  
Liquid Chromatography ◽  
High Pressure Liquid Chromatography ◽  
Porous Silica ◽  
Peak Height ◽  
Coefficients Of Variation ◽  
Highly Sensitive ◽  
Porous Silica Gel ◽  
Water Saturated ◽  
The Relationship

Abstract Aflatoxins were completely resolved as sharp peaks in the order B1-B2-G1-G2 by high-pressure liquid chromatography on a small particle (10 μm) porous silica gel column in 7–13 min (B1 through G2) by a water-saturated chloroform-cyclohexane-acetonitrile elution solvent (25+7.5+1.0), with detection by ultraviolet absorbance at 360 nm. The relationship between peak height and amount injected was linear over a 5–400 ng range for each aflatoxin. Both retention times and peak heights were highly reproducible, multiple injections of mixed standards giving coefficients of variation of 1.0–1.4% (retention time) and 1.6–2.8% (peak height) for the 4 aflatoxins. Detection was highly sensitive, with mean peak height, mm/ng, of 7.1 (B1), 6.4 (B2), 4.5 (G1), and 4.1 (G2), allowing detection of 1–2 ng of each aflatoxin.

Historical chemical annotations of Cinchona bark collections are comparable to results from current day high-pressure liquid chromatography technologies

2020 ◽  
Vol 249 ◽  
pp. 112375 ◽  
Author(s):  
Nataly Allasi Canales ◽  
Tobias Nikolaj Gress Hansen ◽  
Claus Cornett ◽  
Kim Walker ◽  
Felix Driver ◽  
...  
Keyword(s):  
High Pressure ◽  
Liquid Chromatography ◽  
High Pressure Liquid Chromatography
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