Dian Wuri Astuti
College of Health Sciences Guna Bangsa Yogyakarta

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Hydroquinone Identification in Whitening Creams Sold at Minimarkets in Minomartini, Yogyakarta Astuti, Dian Wuri; Prasetya, Hieronimus Rayi; Irsalina, Dina
Journal of Agromedicine and Medical Sciences Vol 2, No 1 (2016)
Publisher : Medical Faculty of Jember University (Fakultas Kedokteran Universitas Jember)

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Abstract

Whitening cream is a cosmetic which is contains chemicals and other materials that can etiolate black (brown) stain on the skin. Hydroquinone is a supplemental ingredient in whitening cream. Hydroquinone is the active ingredient that can control the production of uneven pigment, rather serves to reduce or inhibit the formation of melanin. The use of hydroquinone in cosmetics should not be more than 2%.The excessive use of hydroquinone can cause oochronosis,a rough, speckled bluish skin. The purpose of this study is to determine whether or not there are any hydroquinone in whitening cream sold at Minimarket in Minomartani, Yogyakarta. If found, further testing is done to determine the level of hydroquinone in it. This research describes the presence or absence of hydroquinone in the whitening creams and find out how much the percentage is. The method used is Thin Layer Chromatography (TLC) and serimetri titration. The qualitative study test results that 64% of the samples positively contain hydroquinone, whereas from the quantitative assay it is obtained that 89% of the samples are not suitably qualified according to Permenkes No.445/MENKES/PER/V/1998. There are 9 out of 14 whitening cream brands that contain hydroquinone and 8 of them contain levels of hydroquinone more than normal (> 2 %).Keywords: face whitening cream, hydroquinone, Thin Layer Chromatography, serimetri titration.
PENETAPAN KESADAHAN TOTAL (CaCO3) AIR SUMUR DI DUSUN CEKELAN KEMUSU BOYOLALI DENGAN METODE KOMPLEKSOMETRI Astuti, Dian Wuri; Rahayu, Muji; Rahayu, Dewi Sri
Kes Mas: Jurnal Fakultas Kesehatan Masyarakat Vol 9, No 2 (2015): Kes Mas: Jurnal Fakultas Kesehatan Masyarakat
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (213.031 KB) | DOI: 10.12928/kesmas.v9i2.2273

Abstract

Background: Water is a basic requirement for human life, both in terms of quantity and quality have not been fulfilled can have a large impact on the problems that are often found in water service that the quality of groundwater and river water used by the people who are less qualified as clean water even in some places even unfit for use. One of the chemical parameters in terms of water quality is the number of the element content of Mg2+ and Ca2+ in the presence of water commonly called water hardness. Hardness in water is not desired either for domestic use or for industrial use. This study aims to determine the total hardness of water wells in the village Cekelan District of Kemusu Boyolali, whether in accordance with PERMENKES RI 416/Menkes/PER/IX/1990 on water quality standards. Methods: This was a descriptive observational study. The sample under study is taken directly from the existing wells in the village Cekelan random as many as 44 samples. Laboratory tests by the titration method complexometry. Results: The total hardness (CaCO3) water wells that have been examined is 2.0 mg/L to 520 mg/L. Conclusion: Total hardness (CaCO3) water wells in village Cekelan Kemusu Boyolali indicates that there are 11,36% samples were ineligible and 88,64% samples qualify. Keywords: Total hardness (CaCO3), Water well, Complexometry