29 research outputs found
A bi-directional HPTLC development method for the detection of low levels of aflatoxin in maize extracts
No full textA bi-directional high performance thin layer chromatography (HPTLC) method for the determination of low levels of aflatoxin in extracts of maize has been evaluated. The method, using diethylether and chloroform:xylene:acetone (6∶3∶1) as the two developing solvents was found to have a limit of detection of 0.8 (B1), 0.4 (B2), 1.7 (G1) and 0.4 (G2) μg/kg respectivety, with CVs equal or less than 1.7% (B1), 2.5% (B2), 3.1% (G1), and 3.1% (G2). Inter-plate variation was significantly greater than intra-plate variation.
Compared with two-dimensional HPTLC methods, a 15 to 30 fold improvement in the sample capacity per plate is achieved and positioning errors are much reduced during densitometry
Antiallergic effect of an aqueous leaf extract of Pistia stratiotes in murine model of ovalbumin-induced allergic conjunctivitis
No full textLa distribuzione dell'acido l-ascorbico nelle foglie di piante officinali italiane. Aspetti quantitativi e tassonomici
No full textA Maillard Approach to 2-Formylpyrroles: Synthesis of Magnolamide, Lobechine and Funebral
No full text
