PENETAPAN KADAR HIDROKUINON DALAM SEDIAAN KRIM MALAM PEMUTIH YANG BEREDAR DI SALAH SATU SWALAYAN DI PURWOKERTO

FITRIYANI, . (2011) PENETAPAN KADAR HIDROKUINON DALAM SEDIAAN KRIM MALAM PEMUTIH YANG BEREDAR DI SALAH SATU SWALAYAN DI PURWOKERTO. Bachelor thesis, UNIVERSITAS MUHAMMADIYAH PURWOKERTO.

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Abstract

Hydroquinone has been known as an active ingredient in whitening cosmetics preparations. Six (6) whitening night cream samples has taken randomly from a supermarket in Purwokerto. Hydroquinone in whitening night cream samples were identified by thin layer chromatography (TLC) with methanol : chloroform (1:1) as mobile phase and silica gel F254 as stationary phase. Determination of hydroquinone levels use Ultraviolet-Visible (UV-Vis) spectrophotometry with addition phloroglucinol reagents. The results of the validation of analytical methods including precision, linearity, limit of detection, limit of quantitation, and accuracy showed that the UV-Vis spectrophotometric method can be used to determination of hydroquinone level. The six samples whitening night cream is known that five samples contain hydroquinone with varying levels.

Item Type: Thesis (Bachelor)
Additional Information: Pembimbing: Wiranti Sri Rahayu, M.Si.,Apt dan Pri Iswati Utami, M.Si.,Apt
Uncontrolled Keywords: Hydroquinone, Whitening night cream, TLC, UV-Vis spectrophotometry, Phloroglucinol
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Depositing User: Danarto Kh
Date Deposited: 29 Aug 2017 01:18
Last Modified: 29 Aug 2017 01:18
URI: http://repository.ump.ac.id/id/eprint/3586

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