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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Kesehatan
Samsuar Samsuar
Tulang Bawang University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Health Professions Materials Science & Nanotechnology Physics Public Health

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Analisis Kadar Timbal (Pb) pada Rambut Pekerja Bengkel Tambal Ban dan Ikan Mas di Sepanjang Jalan Soekarno-Hatta Bandar Lampung Secara Spektrofotometri Serapan Atom Samsuar Samsuar; M Kanedi; Sherly Pebrice; Widhalita Ari P
Jurnal Kesehatan Vol 8, No 1 (2017): Jurnal Kesehatan
Publisher : Politeknik Kesehatan Tanjung Karang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (422.016 KB) | DOI: 10.26630/jk.v8i1.406

Abstract

Lead is often referred to as a lead or of lead, the metal is denoted by Pb.Heavy metal lead can cause poisoning and accumulate in the human body.Process of entry into the body can lead through food and drink, the air and the penetration of the skin.Absorption through the skin may occur due to these compounds soluble in oils and fats.Lead through the air into the respiratory tract to be absorbed and binds to lung blood is then circulated to all the tissues and organs of the body, while by foods possible cause fish was foods source of protein had bepouled of lead.On the hair can be bound to sulfhydryl groups so that the lead content in the hair can be an indicator of lead contamination.This study aims to analyze the levels of lead in the hair tire repair shop workers and goldfish keep in along the Soekarno-Hatta Airport Lampung.Examination conducted quantitative analysis using Atomic Absorption Spectrophotometry.The determination of the concentration of lead in Atomic Absorption Spectrophotometry obtained linear regression equation of lead standard solution is y: 0.0100x - 0.00933, the correlation coefficient (rx,y) of 0.999.Lead provides maximum absorption at a wavelength of 283.3 nm.The results showed that the positive tire repair shop workers have polluted lead.The highest lead level is 4.813 ppm while the lowest lead content was 0.258 ppm. In fish gills and meat of goldfish the highest lead level ware 0.15878 and 0.1160 ppm while the lowest lead content ware 0.1136 and 0.0539 ppm.
Formulasi, Stabilitas, dan Uji Aktivitas Krim Tabir Surya dari Ekstrak Batang Kaktus (Opuntia Cochenillifera (L.) Mill) Menggunakan Spektrofotometer Ultraviolet-Visible. Samsuar Samsuar; Nopiayansyah Nopiayansyah; Indra Hidayatullah
Jurnal Penelitian Pendidikan IPA Vol 12 No 5 (2026): In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i5.15183

Abstract

Sunlight has several health benefits, but it also has certain negative impacts. Sunscreen is a cosmetic product that protects the skin from ultraviolet rays, which can cause a number of skin health problems. Phenolic compounds, particularly flavonoids, have the potential to be used in sunscreen cosmetics. The goal of this research is to develop a sunscreen cream using the active ingredient Centong cactus stem extract (Opuntia cochenillifera (L.) Mill) and evaluate its stability and Sun Protection Factor (SPF) using a spectrophotometer. The results showed that the formulation of Centong cactus stem extract sunscreen cream met the criteria set regarding its physical and chemical properties based on the Indonesian National Standard (SNI) 2016-4399-1996. These properties include organoleptic characteristics, homogeneity, spreadability, adhesion, pH, viscosity, and stability. The sunscreen activity test resulted in an SPF rating of 7.04 ± 0.32 for the first f ormulation (FI) for extra protection, 12.02 ± 0.34 for the second formulation (FII) for maximum protection, and 18.03 ± 0.31 for the third formulation (FIII) for ultra protection. The results of this initial study indicate that Centong cactus stem extract sunscreen cream has good stability and ultra-sun protection factor FIII (15%) activity, which is very good for further research.
Co-Authors Indra Hidayatullah M Kanedi Nopiayansyah Nopiayansyah Sherly Pebrice Widhalita Ari P