Objective To investigate the prevalence of hyperuricemia and its associated factors including purine-rich food,obesity, and drinking in some population in Beijing.

High purine diet,drinking habit and diuretic use are important risk factors.

Review of purine derivatives in urine to estimate rumen microbial protein production;

Effect of different dietary levels on excretion of urinary purine derivatives in young buffalo

The chromatographic behavior of purine derivatives on a new cucurbit[6]uril monorotaxane-bonded silica stationary phase(CB6MRBS) was studied using high performance liquid chromatography both under normal and reversed-phase modes.

Tentative study on adsorbents to absorb purine compounds in beer;

The analytic method (HPLC) of purine compounds content in beer was developed.

The absorption methods of purine compounds in beer by several kinds of absorbents had been developed.

Study on Low-purine-compound Beer;

Four purine bases were separated by reversed-phase ion pair chromatography.

Some kinds of determination methods of purine compounds in beer were reviewed in this paper.

8 g/head/d) of supplemental lanthanum chloride to evaluate the effects of different lanthanum chloride levels on ruminal pH,NH3-N,VFA,nutrients degradability and purine derivatives of urine.

A method of high performance liquid chromatography(HPLC) coupled with UVD was developed for the determination of purine derivatives(PD),including allantoin,creatinine,uric acid,xanthine and hypoxanthine,and creatinine in white yak\'s urine and plasma samples.

【Objective】The objective of this study was to evaluate the effects of glycerol supplementation on rumen fermentation, urinary excretion of purine derivatives, nutrients digestibility, energy metabolism and nitrogen balance of steers.