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All Journal JHTS Jurnal Ilmiah Dr. Aloei Saboe
Dianingsi Hipi
Universitas Bina Mandiri Gorontalo
Education Health Professions Medicine & Pharmacology Nursing Public Health Social Sciences

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IDENTIFICATION OF ALKALIMETRIC LEVELS USING ACID-BASE REACTION PRINCIPLES Dianingsi Hipi; Eka Paramita Daud; Gayatri D. Soga
Journal of Health, Technology and Science (JHTS) Vol. 2 No. 4 (2021): Journal of Health, Technology and Science (JHTS)
Publisher : LPPM Universitas Bina Mandiri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.928 KB) | DOI: 10.47918/jhts.v2i4.247

Abstract

Acidimetry is a titration using a standard solution of an acid to determine a base. The acids that are usually used are HCl, vinegar, oxalic acid, boric acid. While alkalimetry is the opposite of acidimetry, which is a titration that uses a standard solution of a base to determine acid.This study aims to identify the substance in a sample and determine the level is the principle of acid-base reactions. Acidi-alkalimetric titration is a volumetric titration using NaOH as the secondary standard solution and potassium hydrogen phthalate as the primary standard solution and added pp indicator. The end point of the titration is indicated by a change in the color of the solution to a pink color. Alkalimetry is a quantitative determination of the levels of compounds that are acidic by using a standard base. The method used is the experimental method through a quantitative approach. The research method is used to determine the effect of the independent variable or treatment on the dependent or the results under controlled conditions. The results of the study obtained the calculation of the volume of NaOH 28.7 then performed in duplicate to obtain the calculation of the volume of NaOH 29.7. So the calculation of the concentration of Salicylic Acid is0,584 M.
ANALISIS KADAR ZAT PEWRNA RHODAMIN B PADA PEWARNA BIBIR YANG BEREDAR DI PASAR MINGGU KABUPATEN GORONTALO Dianingsi Hipi; Adnan Malaha; Titin Dunggio
Jurnal Ilmiah dr. Aloei Saboe Vol. 2 No. 1 (2022): Jurnal Ilmiah dr. Aloei Saboe
Publisher : LP2M Universitas Bina Mandiri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.692 KB) | DOI: 10.47918/jias.v9i1.1074

Abstract

Penelitian ini bertujuan mengetahui zat pewarna Rhodamin B yang terdapat pada pewarna bibir dan berapa kadar zat pewarna Rhodamin B yang terdapat pada pewarna bibir yang beredar di Pasar Minggu Telaga Kabupaten Gorontalo. Metode penelitian ini menggunakan metode kuantitatif dengan jenis penelitian Eksperimen Laboratorik yaitu menggunakan rapid test kit rhodamin B untuk mengetahui ada tau tidaknya rhodamin B dan menggunakan instrument Spektrofotometri UV-Vis untuk mengetahui kadar dari rhodamin B. Dari 12 sampel yang di uji terdapat 2 sampel yang positif yaitu Sampel G dan Sampel J. Kedua sampel di uji kuantitaf dengan absorbansi 2,6505 nm dan 1,1285 nm. Hasil penetapan kadar rhodamin B Pada Sampel G diperoleh 5,0361 mg/g dan Sampel J diperoleh 2,132 mg/g.
Co-Authors Adnan Malaha Dunggio, Titin Eka Paramita Daud Gayatri D. Soga