Simple method for determination of urinary mucopolysaccharides.

A simple method for determination of plasma and urinary biotin.

Measurement of biotin in plasma and urine has been stimulated by recent descriptions of inborn errors of biotin metabolism and by newly recognized causes of biotin deficiency. Biotin determination in physiologic fluids to document these conditions has been hindered by lack of a widely useable assay. This paper presents a method which employs tritium-labelled biotin, avidin, and nitrocellulose f...

Simple microplate method for determination of urinary iodine.

BACKGROUND Urinary iodine is a good biochemical marker for control of iodine deficiency disorders. Our aim was to develop and validate a simple, rapid, and quantitative method based on the Sandell-Kolthoff reaction, incorporating both the reaction and the digestion process into a microplate format. METHODS Using a specially designed sealing cassette to prevent loss of vapor and cross-contamin...

A Simple Gravimetric Method for the Determination of Urinary Potassium

A simple method for the determination of serum cholesterol

Simple Automated Method for Urinary Creatinine Estimation.

The increasing numbers of investigations into metabolic processes have necessitated the adaptation to automated principles of a method whereby the efficacy of quantitative urine collections can be tested. The estimation of creatinine (creatine anhydride) for this purpose has several aJvantages over other methods which have been used. Creatinine excretion is fairly constant from day to day (Foli...