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All Journal Al-Kimia Stannum : Jurnal Sains dan Terapan Kimia
Adi Syahputra
Universitas Bangka Belitung
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry

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Pemilihan Monomer Fungsional Terbaik Dalam Molecularly Imprinted Polymer (MIP) Monogliserida Lard Menggunakan Metode Komputasi Adi Syahputra; Nurhadini Nurhadini; Fajar Indah Puspitasari
Al-Kimia Vol 9 No 1 (2021): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v9i1.10893

Abstract

Pemilihan monomer fungsional yang cocok dan dianggap relatif cukup baik selektivitasnya dalam pembuatan MIP dapat dilakukan dengan bantuan komputer (computer aided) untuk mengurangi trial and error. Dimana molekul target (template) dan monomer fungsional dimodelkan dalam bentuk 3D menggunakan software ChemBio Ultra 12 selanjutnya diinteraksikan  menggunakan software AutoDock Tools 1.5.6 dan Pyrx untuk melihat binding interaction yang terjadi dan binding energy serta kemiripan sifat polaritas yang secara teoritis dapat memberikan informasi sebelum dilakukan sintesis MIP. Seleksi monomer fungsional secara bertahap dilakukan berdasarkan ada tidaknya binding interaction, tahap berikutnya dilihat berdasarkan binding energy yang paling besar (negatif) dan terakhir adalah momen dipol. Berdasarkan data tersebut monomer fungsional terpilih adalah molekul Benzo-15-crown-5-acrylamide dengan binding Interaction berupa ikatan hydrogen serta nilai binding energy dan momen dipol paling besar.
Uncertainty Estimation of the Fe Content Measurement in the Clean Water Using UV- Vis Spectrophotometer Adi Syahputra
Stannum : Jurnal Sains dan Terapan Kimia Vol 1 No 1 (2019): Oktober
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (496.11 KB) | DOI: 10.33019/jstk.v1i1.1141

Abstract

Good laboratories should be able to apply procedures uncertainty for measuring of both conventional and instrument equipment. As well as the testing for Fe content using UV-Vis Spectrophotometer. As for the purpose for calculating the uncertainty estimated to determine the range of values within which estimated the true value of the testing standard solution Fe using UV-Vis Spectrophotometer. The uncertainty estimation are influenced by several factors such as sample used, reading of spectrophotometer, repeatability, sample volume. The uncertainty of the calculation obtained a value of ± 0,02 mg/L. Further testing of Fe content in the clean water using UV-Vis Spectrophotometer at the 500 nm wavelength which forms an orange solution as indication of Fe content in the water. The result of Fe content has quality standards according to the spesifications issued by ministry of health Republic of Indonesia in 2010 for drinking water.
Co-Authors Fajar Indah Puspita Sari Nurhadini Nurhadini