Please use this identifier to cite or link to this item: https://repository.unej.ac.id/xmlui/handle/123456789/77303
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dc.contributor.authorAnanda, Risa Wahyu-
dc.contributor.authorKristiningrum, Nia-
dc.contributor.authorRetnaningtyas, Yuni-
dc.date.accessioned2016-11-02T01:33:45Z-
dc.date.available2016-11-02T01:33:45Z-
dc.date.issued2016-11-02-
dc.identifier.issn2355-178X-
dc.identifier.issn2355-178X-
dc.identifier.urihttp://repository.unej.ac.id/handle/123456789/77303-
dc.description.abstractRhodamine B is one of the synthetic dyes that forbidden in cosmetics. The study was conducted to validate TLC-densitometry method for determination Rhodamin B in lipstick at Jember University area. Samples was taken by purposive sampling method. The analyte were dissolved with ethanol 70% and cromatographed on silica Gel GF 254 TLC plate using etil asetat : metanol : amoniak in the ratio (15:3:3) (v/v/v). Then, validation and determination sample can be done using TLC-densitometry with maximum wavelength 554 nm. Method was found linear over the concentration range of 6 – 32 ng with correlation coefficient of 0,9965. Spesificity showed calculation of purity and identity more than 0.99. The limits of detection and quantitation limits obtained 0.558 and 1.86 ng/spot. The precision test which includes precision repeatability and intermediate precision, amounting to RSD 6.57% and test accuracy , resulting % recovery and RSD value of 97.74 % ± 2.54% . Based on these results lipstick sample purposively sampled none containing rhodamine B and safe consumer use.en_US
dc.language.isoenen_US
dc.subjectTLC - densitometryen_US
dc.subjectlipsticken_US
dc.subjectrhodamine Ben_US
dc.subjectthe validation method of analysisen_US
dc.title(Validation TLC-densitometry method for determination of Rhodamine B in Lipstick at Jember University Area)en_US
dc.typeArticleen_US
Appears in Collections:LSP-Jurnal Ilmiah Dosen

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