A micro method for detecting indol formation.

A method for detecting bubbles in two-phase gas-liquid flow

Detecting bubble in two-phase flow has been a basic issue in two-phase flow systems. A new method for measuring the frequency of bubble formation is presented in this paper. For this purpose, an electronic device was designed and constructed which works based on a change in intensity of laser beam. For this purpose, continues light beam is embedded just above the needle, which is received by a ...

Comparison of Micro Neutralization Test with Hemadsorption-Inhibition Test, and Immunoflrorescence Technique for Detecting Mumps Antibodies

A Simple Method for Detecting and Estimating Indican in the Urine by Means of the Cotton-Wool Plug Test

Indican is derived from indol, and unlike the other ethereal sulphates which are derived in part from metabolism, originates practically wholly from putrefactive processes. It, alone, therefore, and not the total ethereal sulphates, has been taken as an index of such putrefaction (1). The determination of indican depends upon its decomposition and oxidation of the liberated indoxyl into indigo-...

Catalyst and Solvent-Free Microwave Assisted Expeditious Synthesis of 3-Indolyl-3-hydroxy Oxindoles and Unsymmetrical 3,3-Di(indolyl)indolin-2-ones

A simple and efficient method for the synthesis of 3-indolyl-3-hydroxy oxindoles and unsymmetrical 3,3-di(indolyl)indolin-2-ones using microwave irradiation without catalyst and solvent is described. A series of 3-indolyl-3-hydroxy oxindoles and unsymmetrical 3,3-di(indolyl)indolin-2ones have been synthesized in very short reaction times of 5 and 10 minutes and in yields ranging from 31% to 98%...

Investigation of physical conditions in the formation of micro and Nano iron/alginate capsules in the coacervation technique

Microencapsulation is a process in which solid, liquid or gas components are covered with a septum.The present study has focused on the effect of stirring to produce ferric saccharide capsules withalginate coating applying the coacervation method so that we can obtain the best capsules forfortification of hydrated and dehydrated food products. At first, three methods, including stirrer,ultra-so...