Use of triacylglycerol profiles established by high performance liquid chromatography with ultraviolet–visible detection to predict the botanical origin of vegetable oils

2011 ◽  
Vol 1218 (42) ◽  
pp. 7521-7527 ◽  
Author(s):  
M.J. Lerma-García ◽  
R. Lusardi ◽  
E. Chiavaro ◽  
L. Cerretani ◽  
A. Bendini ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Vegetable Oils ◽  
High Performance ◽  
Botanical Origin ◽  
Triacylglycerol Profiles

Rapid and Sensitive Detection of Aflatoxin B1, B2, G1 and G2 in Vegetable Oils Using Bare Fe3O4 as Magnetic Sorbents Coupled with High-Performance Liquid Chromatography with Fluorescence Detection

2020 ◽  
Vol 58 (7) ◽  
pp. 678-685
Author(s):  
Hui-Xian Zhang ◽  
Ping Zhang ◽  
Xiao-Fang Fu ◽  
You-Xiang Zhou ◽  
Xi-Tian Peng
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Vegetable Oil ◽  
Vegetable Oils ◽  
Aflatoxin B1 ◽  
High Performance ◽  
Solid Phase ◽  
Simultaneous Detection ◽  
Fluorescence Detector ◽  
Relative Standard

Abstract This paper reports a simple, sensitive and reliable method for the simultaneous detection of aflatoxin B1, B2, G1 and G2 in vegetable oils. Aflatoxins were extracted by magnetic solid phase extraction followed by high-performance liquid chromatography, then postcolumn photochemical derivatization and finally detected by fluorescence detector. Vegetable oil samples were first diluted with hexane and then commercial bare Fe3O4 nanoparticles were directly employed as sorbents to extract aflatoxins from complex vegetable oil samples, which significantly simplified the procedure of sample preparation and largely improved the sample analysis throughput. The effects of various parameters such as the amount of sorbent, loading, washing and eluting conditions were carefully optimized to improve the extraction efficiencies of aflatoxins. Under the optimal conditions, the limits of detection of four aflatoxins ranged from 0.01 μg/kg to 0.16 μg/kg, and squared regression coefficients (R2) >0.9990 were obtained within the linear range of 0.1–20 μg/kg (except for aflatoxin G2 with 0.5–20 μg/kg). Furthermore, the recoveries spiked at four concentration levels in a blank vegetable oil sample were from 82.6 to 106.2%, with inter- and intraday relative standard deviations <9.8%, indicating good accuracy and precision of the proposed method.

Rapid determination of vitamin E in vegetable oils by reversed-phase high-performance liquid chromatography

2000 ◽  
Vol 881 (1-2) ◽  
pp. 251-254 ◽  
Author(s):  
E Gimeno ◽  
A.I Castellote ◽  
R.M Lamuela-Raventós ◽  
M.C de la Torre ◽  
M.C López-Sabater
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Vitamin E ◽  
Vegetable Oils ◽  
High Performance ◽  
Rapid Determination ◽  
Reversed Phase
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