Determination of progesterone and 17-hydroxyprogesterone by high performance liquid chromatography after pre-column derivatization with 4, 4-difluoro-5, 7-dimethyl-4-bora-3a, 4a-diaza-s-indacene-3-propionohydrazide.
Katayama M, et al.
Analyst, 123(11), 2339-2342 (1998)
Jinmao You et al.
Analytica chimica acta, 636(1), 95-104 (2009-02-24)
A pre-column derivatization method for the sensitive determination of aldehydes using the tagging reagent 2-[2-(7H-dibenzo[a,g] carbazol-7-yl)-ethoxy] ethyl carbonylhydrazine (DBCEEC) followed by high-performance liquid chromatography with fluorescence detection and APCI-MS identification has been developed. The chromophore of fluoren-9-methoxy-carbonylhydrazine (Fmoc-hydrazine) reagent was...
Journal of Chromatography A, 646, 45-45 (1993)
High-performance liquid chromatographic determination of neutral and amino monosaccharides by ultraviolet and fluorescence detection of sugar 9-fluoroenylmethoxycarbonyl hydrazones and 9-fluoroenylmethoxycarbonyl amino sugars at picomole and sub-picomole levels.
Zhang R, et al.
Journal of Chromatography A, 646(1), 45-52 (1993)
D R Rooyakkers et al.
Journal of chromatography. A, 730(1-2), 99-105 (1996-04-12)
Enteral intake of a mixture of inert, non-metabolic monosaccharide and disaccharide probes, followed by measurement of their urinary probe ratio, is a well known method to investigate gut permeability. However, most applications lack sensitivity, thus a large amount of especially...