Gravimetric Method for the Determination of Lithium with Zinc Uranyl Acetate Reagent

A Simple Gravimetric Method for the Determination of Urinary Potassium

A Rapid Method for Cholesterol Determination with a Single Reagent.

published a modification of Pearson’s method, in which a mixture of all the reagents was added at once. In our laboratory, we introduced a method which also requires only a single reagent. The density of the green color (Lieberman-Burchard reaction) is read in the Klett-Summerson photocolorimeter, using a 600-rn/A filter. In the normal range (140-280 mg./100 ml.), the values obtained with the n...

Application of Differential Kinetic Method Using ANN with a New Synthetic Reagent for Simultaneous Spectrophotometric Determination of Mercury and Palladium

A new selective reagent was used for simultaneous determination of mercury and palladium in real samples with their different kinetic spectrophotometric properties. The method is based on the difference in the rate of the oxidation reaction of the recently synthesized reagent, nitro benzoyl diphenylmethylen phosphorane (N-BDMP), with Hg2+ and Pd2+. The kinetic profiles were monitored and record...

Gravimetric determination of pipette errors

In chemical measurements (for instance in titrimetric analysis) it is very important to precisely measure amount of liquid, the measurement is performed with use of various measuring vessels. Presently laboratories use all kinds of glass measuring vessels like: beakers, flasks, etc., for measurement of bigger volumes of liquid, and in case of small volumes glass pipettes. Glass pipettes have be...

2 - Hydroxy - 4 - n - propoxy - 5 - bromoacetophenone oxime ( HnPBAO ) as analytical reagent for the gravimetric determination of Pd ( II )

2-Hydroxy-4-n-5-bromoacetophenone oxime (HnPBAO) was developed as a new analytical reagent for the gravimetric determination of divalent palladium ion. In the pH range of 2.0 to 5.0, the reagent gave a light brown precipitate with Pd(II). Job’s method and mole ratio method revealed that the stoichiometry of the complex is 1:2 (metal : ligand). Beer’s law is obeyed upto 37.25 ppm of Pd(II) at 45...