Browsing Diploma Papers by Keyword "AAS"
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Analisis Timbal (Pb) pada Lipstik yang Dijual Secara Online menggunakan metode spektrofotometri Serapan Atom (SSA)
(Universitas Sumatera Utara, 2023)Background: Cosmetics are preparations intended for use on the outside of the human body. The most widely used cosmetics product is lipstick. Some lipsticks have been found to contain toxic ingredients such as lead metal ...