Object

Title: Экстракционно-абсорбциометрическое определение меди бриллиантовым зеленым в вине и коньяке

Publication Details:

Հանդեսը լույս է տեսնում տարին մեկ անգամ:

Journal or Publication Title:

Արցախի պետական համալսարանի գիտական տեղեկագիր. Հասարակական և բնական գիտություններ=Ученые записки Арцахского государственного университета: Социальные и естественные науки=Artsakh state university's Proceedings: Social and natural sciences

Date of publication:

2014

Volume:

1

Official URL:


Additional Information:

Mangasaryan S.

Other title:

Extraction-absorptiometric Determination of Copper by Brilliant Green in Wine and Gognac

Corporate Creators:

Արցախի պետական համալսարան

Contributor(s):

Գլխավոր խմբ.՝ Վալերի Ավանեսյան

Coverage:

127-131

Abstract:

Interaction of cupric chloride anionic complex with threephenylmethane basic dye – brilliant green has been studied. The colored ionic associate is extracted by dichlorethane:toluol (1:4) binary mixture out of pH2 HCl solution. The method is based on the reduction of copper (II) to copper (I) with ascorbic acid. The calibration graph obeyed Beer’s law over the range 0,142-2,5 mkg/ml copper and the apparent molar absorptivity of the extract at 625 nm was 1.215 105 l mol-1cm-1. The molar ratio between copper (I) chloride complex and brilliant green in ionic associate has been determined by Asmuse straight line and shifts of equilibrium methods, which (1:1). The influence of interfering elements on the determination of copper has been studied. The elaborated methods have been applied for the determination of copper in wine and gognac. The proposed method is very sensitive and simple than those reported earlier.

Place of publishing:

Ստեփանակերտ

Format:

pdf

Identifier:

oai:arar.sci.am:364150

Digitization:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան

Location of original object:

Արցախի պետական համալսարան

Object collections:

Last modified:

Jan 12, 2024

In our library since:

Oct 24, 2023

Number of object content hits:

31

All available object's versions:

https://arar.sci.am/publication/393576

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