Cover Image

Effect of copper (ii) and chromium (vi) on crude extract of erythrina crysta-galli and ixora javanica flowers: spectrometric studies / Mazhamiza Ridzuan

Erythrina Crysta-Galli and Ixora Javanica flowers were chosen in these spectrometric studies. Extraction of natural pigments was performed in acidified water at different temperature (50 to 100°C). The crude extract was analyzed using ultraviolet visible spectrophotometer over the range of 400 nm to...

Full description

Saved in:
Bibliographic Details
Main Author: Ridzuan, Mazhamiza
Format: Thesis
Language:English
Published: 2010
Online Access:https://ir.uitm.edu.my/id/eprint/103736/1/103736.pdf
https://ir.uitm.edu.my/id/eprint/103736/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.uitm.ir.103736
record_format eprints
spelling my.uitm.ir.1037362024-09-28T13:37:33Z https://ir.uitm.edu.my/id/eprint/103736/ Effect of copper (ii) and chromium (vi) on crude extract of erythrina crysta-galli and ixora javanica flowers: spectrometric studies / Mazhamiza Ridzuan Ridzuan, Mazhamiza Erythrina Crysta-Galli and Ixora Javanica flowers were chosen in these spectrometric studies. Extraction of natural pigments was performed in acidified water at different temperature (50 to 100°C). The crude extract was analyzed using ultraviolet visible spectrophotometer over the range of 400 nm to 650 nm. Maximum absorbance of Erythrina Crysta-Galli and Ixora Javanica crude extract was obtained at extraction temperature 100°C (1.246) at 511.08 nm and 60°C(1.214) at 513.10 nm respectively. The interaction of Cr(VI) and Cu(II) with crude extract at different concentration was studied. When the concentration of Cr(VI) increased, the absorbance of mixture increases. But, there are no changes in maximum absorbance when the concentration of Cu(II) increased. The maximum absorbance was shifted to shorter wavelength when Cr(VI) ion was added to crude extract of both flowers. When Cu(II) was added into the crude extract, hypsochromic shift was observed for Ixora Javanica and bathochromic shift for Erythrina CrystaGalli. The crude extract of natural pigment was also applied to silk fabric. Different shades of color on silk fabrics were obtained when the cation solution mixed with crude extract of each flowers. 2010 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/103736/1/103736.pdf Effect of copper (ii) and chromium (vi) on crude extract of erythrina crysta-galli and ixora javanica flowers: spectrometric studies / Mazhamiza Ridzuan. (2010) Degree thesis, thesis, Universiti Teknologi MARA.
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
description Erythrina Crysta-Galli and Ixora Javanica flowers were chosen in these spectrometric studies. Extraction of natural pigments was performed in acidified water at different temperature (50 to 100°C). The crude extract was analyzed using ultraviolet visible spectrophotometer over the range of 400 nm to 650 nm. Maximum absorbance of Erythrina Crysta-Galli and Ixora Javanica crude extract was obtained at extraction temperature 100°C (1.246) at 511.08 nm and 60°C(1.214) at 513.10 nm respectively. The interaction of Cr(VI) and Cu(II) with crude extract at different concentration was studied. When the concentration of Cr(VI) increased, the absorbance of mixture increases. But, there are no changes in maximum absorbance when the concentration of Cu(II) increased. The maximum absorbance was shifted to shorter wavelength when Cr(VI) ion was added to crude extract of both flowers. When Cu(II) was added into the crude extract, hypsochromic shift was observed for Ixora Javanica and bathochromic shift for Erythrina CrystaGalli. The crude extract of natural pigment was also applied to silk fabric. Different shades of color on silk fabrics were obtained when the cation solution mixed with crude extract of each flowers.
format Thesis
author Ridzuan, Mazhamiza
spellingShingle Ridzuan, Mazhamiza
Effect of copper (ii) and chromium (vi) on crude extract of erythrina crysta-galli and ixora javanica flowers: spectrometric studies / Mazhamiza Ridzuan
author_facet Ridzuan, Mazhamiza
author_sort Ridzuan, Mazhamiza
title Effect of copper (ii) and chromium (vi) on crude extract of erythrina crysta-galli and ixora javanica flowers: spectrometric studies / Mazhamiza Ridzuan
title_short Effect of copper (ii) and chromium (vi) on crude extract of erythrina crysta-galli and ixora javanica flowers: spectrometric studies / Mazhamiza Ridzuan
title_full Effect of copper (ii) and chromium (vi) on crude extract of erythrina crysta-galli and ixora javanica flowers: spectrometric studies / Mazhamiza Ridzuan
title_fullStr Effect of copper (ii) and chromium (vi) on crude extract of erythrina crysta-galli and ixora javanica flowers: spectrometric studies / Mazhamiza Ridzuan
title_full_unstemmed Effect of copper (ii) and chromium (vi) on crude extract of erythrina crysta-galli and ixora javanica flowers: spectrometric studies / Mazhamiza Ridzuan
title_sort effect of copper (ii) and chromium (vi) on crude extract of erythrina crysta-galli and ixora javanica flowers: spectrometric studies / mazhamiza ridzuan
publishDate 2010
url https://ir.uitm.edu.my/id/eprint/103736/1/103736.pdf
https://ir.uitm.edu.my/id/eprint/103736/
_version_ 1811598323693387776
score 13.211869

Similar Items