Analisis Senyawa Rhodamin B pada Lipstik yang Dijual di Pasar Tradisional Andalas

Eliskawati M Alinti, Ishak Isa, Hendri Iyabu

Abstract


Rhodamine B is a dangerous synthetic dye and its use is prohibited in cosmetic products because it is toxic and carcinogenic. This study aims to analyze the Rhodamine B content in lipsticks sold at Andalas Traditional Market, Gorontalo City. The method used is UV-Vis spectrophotometry. Three samples of lipstick without a distribution permit and with a striking red color were analyzed quantitatively. Sample preparation was carried out by dissolving it using methanol and hydrochloric acid, then measuring the absorbance at a maximum wavelength of 548 nm. A calibration curve was prepared using a standard Rhodamine B solution with a concentration of 2–10 ppm and produced a linear regression equation y = 0.021 + 0.020x with a correlation coefficient (r) = 0.991. The results of the analysis showed that the three samples contained Rhodamine B at levels of 0.0374%, 0.0333%, and 0.0343%, respectively. Although the values are relatively low, the presence of Rhodamine B still violates BPOM regulations which prohibit its use in cosmetics. These findings indicate that hazardous cosmetic products are still circulating on the market and may pose health risks to consumers.

Keywords


Rhodamine B; Lipstick; UV-Vis Spectrophotometry; Traditional Market

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DOI: https://doi.org/10.37905/je.v20i2.34002

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