[Preparation and chromatographic performance of cardanol-bonded silica stationary phase].

As green, less toxic, widely available, and site-rich functional ligands, natural products are widely used for the development of chromatographic stationary phases. In this work, a novel stationary phase, cardanol-bonded on silica (CBS) was prepared using -glycidoxypropyltrimethoxysilane (KH-560) as the coupling reagent and cardanol as the functional ligand. The synthesized stationary phase was characterized by Fourier transform-infrared spectra (FT-IR), thermogravimetric analysis (TGA), elemental analysis (EA), and N adsorption-desorption analysis.

[The relationships among HBV genotypes, HBV DNA levels and histopathological features in the livers of familial grouped hepatitis B patients in the Tianjin area].

Objective: To analyse the relationships among HBV genotypes, HBV DNA levels and histopathological features of the livers of familial grouped hepatitis B patients in the Tianjin area.

Methods: One hundred familial grouped hepatitis B (CHB) patients were enrolled in this study. Thirty-five of the 100 patients were chronic asymptomatic HBsAg carriers (ASC) and 65/100 were mild CHB patients.

Chemiluminescence detection of isoniazid using Ru(phen)3(2+)-isoniazid-Ce(IV) system.

In our experiment, it was observed that isoniazid could enhance the chemiluminescence (CL) emission of tris-(1,10-phenanthroline)ruthenium(II) (Ru(phen)3(2+))-cerium(IV) (Ce(IV)) system and this enhancement effect was dependent on the concentration of isoniazid, based on which, a novel CL system was established for the detection of isoniazid. Under the optimum experimental conditions, the dynamic range and detection limit are 7.0 x 10(-2) to 6.