Hydroquinone is potentially carcinogenic and is known to be a skin and respiratory irritant.Hydroquinone is carcinogenic it has been banned in some countries because of fears of a cancer risk[1,2].Animal studies have ...Hydroquinone is potentially carcinogenic and is known to be a skin and respiratory irritant.Hydroquinone is carcinogenic it has been banned in some countries because of fears of a cancer risk[1,2].Animal studies have shown that topically applied retinoic acid can be photocarcinogenic[3].The aim of this study was qualitative and quantitative determination of hydroquinone and retinoic acid contents in facial whitening creams by colour reaction tests,FT-IR after TLC separation and HPLC.展开更多
In this report, the set up, responsibility and objectives of the seismological division of Myanmar are briefly presented. A general description of the seismotectonics and seismicity in Myanmar is given. The activities...In this report, the set up, responsibility and objectives of the seismological division of Myanmar are briefly presented. A general description of the seismotectonics and seismicity in Myanmar is given. The activities of the seismological division in monitoring earthquakes and in international cooperation are also described.展开更多
文摘Hydroquinone is potentially carcinogenic and is known to be a skin and respiratory irritant.Hydroquinone is carcinogenic it has been banned in some countries because of fears of a cancer risk[1,2].Animal studies have shown that topically applied retinoic acid can be photocarcinogenic[3].The aim of this study was qualitative and quantitative determination of hydroquinone and retinoic acid contents in facial whitening creams by colour reaction tests,FT-IR after TLC separation and HPLC.
文摘In this report, the set up, responsibility and objectives of the seismological division of Myanmar are briefly presented. A general description of the seismotectonics and seismicity in Myanmar is given. The activities of the seismological division in monitoring earthquakes and in international cooperation are also described.
