PENETAPAN KADAR HIDROKUINON DALAM SEDIAAN KRIM MALAM PEMUTIH DI KLINIK KECANTIKAN PURWOKERTO

ASTUTI, TITIS ARUM IKA YUNI (2011) PENETAPAN KADAR HIDROKUINON DALAM SEDIAAN KRIM MALAM PEMUTIH DI KLINIK KECANTIKAN PURWOKERTO. Bachelor thesis, UNIVERSITAS MUHAMMADIYAH PURWOKERTO.

Preview	Text COVER_TITIS ARUM IKA Y.A._FARMASI'11.pdf Download (1MB) | Preview
Preview	Text BAB I_TITIS ARUM IKA Y.A._FARMASI'11.pdf Download (597kB) | Preview
Preview	Text BAB II_TITIS ARUM IKA Y.A._FARMASI'11.pdf Download (681kB) | Preview
	Text BAB III_TITIS ARUM IKA Y.A._FARMASI'11.pdf Restricted to Repository staff only Download (650kB)
	Text BAB IV_TITIS ARUM IKA Y.A._FARMASI'11.pdf Restricted to Repository staff only Download (805kB)
	Text BAB V_TITIS ARUM IKA Y.A._FARMASI'11.pdf Restricted to Repository staff only Download (589kB)
Preview	Text DAFTAR PUSTAKA_TITIS ARUM IKA Y.A._FARMASI'11.pdf Download (592kB) | Preview
	Text LAMPIRAN_TITIS ARUM IKA Y.A._FARMASI'11.pdf Restricted to Repository staff only Download (737kB)

Abstract

Research on the identification and assay of hydroquinone in the preparation of whitening night cream in Purwokerto beauty clinic has been studied. Ultravioletvisible spectrophotometry method was used with the addition of phloroglucin as forming a color complex. The results were linearity value (r) 0.99322, the limit of detection 1.08 μg/mL; limit of quantitation 3.6 μg/mL; recovery 99.62% and precission with a coefficient of variation value 0.88%. The method was applied to assay of four samples taken with simple random sampling obtained hydroquinone levels of 0.00344, 2.53, 2.84 and 3.36%.

Actions (login required)

View Item