EFFECT OF THE U.V RADIATION ON THE ABSORBANCE OF SOME INDICATORS (ALIZARIN RED AND BROMOTHYMOL BLUE AND AT DIFFERENT TIMES)
DOI:
https://doi.org/10.53555/eijas.v6i3.93Keywords:
U.V Irradiation, Alizarin red, Bromothymol blueAbstract
The effect of irradiation period on the λmax and absorbance of some indicator including (Alizarin red and Bromothymol blue) was carried out. The main target of study is to evaluate the optimum time of irradiation which give high absorbance. The measurements were carried out by used U.V lamp in the range of (200-400 nm). The spectra of U.V was obtained by scanning the studied indicators by (spectrophotometer DU 800). The results showed that the absorbance value was increased according to the increasing the concentrations. On the other side the absorbance values showed variations of each period of U.V irradiation.
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. Jump up to: a b The primary madder species from which alizarin historically has been obtained is Rubia tinctorum. See also Vankar, P. S.; Shanker, R.; Mahanta, D.; Tiwari, S. C. (2008). "Ecofriendly Sonicator Dyeing of Cotton with Rubia cordifolia 155
. Linn. Using Biomordant". Dyes and Pigments. 76 (1): 207–212. Doi:10.1016/j.dyepig.2006.08.023.
. UV-Vis Wikipedia Link
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