Fen-Ju Lai

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Although coat color in pigs has no direct relation with economic traits, it affects economic benefit significantly, coat color selection are widely used in pig breeding and production. PCR-Acc II-RFLP, PCR-BspH I-RFLP and PCR-SSCP were used in combination to analyze genotype at MC1R locus among individuals from 16 full-sib pedigrees and 6 Chinese native(More)
Pre-column derivatizations of amino acids often present two major challenges: 1) automation, due to the multi-step manipulations for pH control, reagent addition, mixing and extraction, and 2) effect of matrices in the sample such as salts, buffers and surfactants. Both issues have been addressed in a previous publication on derivatization methods using(More)
Reversed-phase high-performance liquid chromatography, UV detection and reversed-phase solid-phase extraction (SPE) as analytical methods for pharmaceutical compounds face a challenge when the compound is rather polar and lack UV absorptivity. A good example is tobramycin. To overcome these problems, a method has been developed using pre-column(More)
Pre-column derivatization of amino acids is widely practiced today for the HPLC analysis of amino acids. Due to the requirement for pH control, excess reagent removal and multi-step manipulations, automation is a major challenge in the derivatization of amino acids. Another challenge for pre-column chemistries is the effect of matrices in the sample such as(More)
In the liquid chromatographic analysis of pharmaceuticals, two challenges are often encountered: detectivity and chiral separations. Propranolol, a beta adrenergic blocker, is a pharmaceutical compound that faces both of these limitations. In this study, both limitations are overcome simultaneously using derivatization with (+)-1-(9-fluorenyl)ethyl(More)
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