Assay of Eucodal in Eucodal-Hydrocotarnine Injection using 2, 4-Dinitrophenylhydrazine

A Note on Eucodal Habit in India

A simplified 2, 4-dinitrophenylhydrazine assay for Flavonoids and its comparison with a Standard flavonoid assay

A simplified version of the 2, 4-DNPH assay for flavonoids has been improvised. The assay includes incubating test sample with DNPH in a 4.5 mL reaction volume in hot water at about 80 C containing 2 mL methanol at about 0.2 N HCl, cooling samples to room temperature, adding 3 mL 1M NaOH, and monitoring red color at 470 nm at 10-15 minutes. The reagent has been found capable of assaying both fl...

Embryo transfer in days 2 to 4 following intracytoplasmic sperm injection: a prospective cohort study

  Background: Improvement of assisted reproductive technique (ART) results in higher pregnancy rates from positive Beta HCG to take home baby statistics. Despite developments in culture media allowing blastocyst stage transfer, some centers apply second, third and sometimes fourth day post injection for embryo transfer. This study aimed to compare their reproductive outcomes.   Methods : This p...

Determination of Formaldehyde in Human Tissue through Derivatization with 2 , 4 - Dinitrophenylhydrazine by Square Wave Polarography Method

The polarographic behaviour of formaldehyde (FA) was studied using cyclic and square wave polarography (SWP) methods. FA was derivatized with 2.4-dinitrophenylhydrazine (DNPH). The influence of several variables (including nature of the buffer, pH, concentration, scan rate, drop size, etc.) was examined in SWP method for FA. The best SWP responses were obtained in acetate buffer pH 5.0. The pea...

hazard evaluation of incinerators in mobin petrochemical company using hazop method

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