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All Journal PROSIDING SEMINAR KIMIA KOVALEN: Jurnal Riset Kimia Jurnal Kimia Mulawarman JURNAL ATOMIK
Bohari Yusuf
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science

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Journal : JURNAL ATOMIK

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PEMBUATAN ETANOL DARI KULIT PISANG MAHULI (Musa paradisiaca. var sapientum) Suaibatul Aslamiah; Bohari Yusuf; Rudi Kartika
JURNAL ATOMIK Vol 1 No 2 (2016)
Publisher : Jurusan Kimia FMIPA UNMUL

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Abstract

Pembuatan etanol dari kulit pisang mahuli (Musa paradisiaca. var sapientum) telah dilakukan. Metode yang digunakan dalam penelitian ini adalah hidrolisis enzimatis yaitu mengubah pati menjadi glukosa dengan bantuan enzim α-amilase dan gluko-amilase, kemudian dilanjutkan dengan penambahan nutrisi urea serta proses fermentasi alkohol dan destilasi. Hasil fermentasi kemudian dianalisa menggunakan Kromatografi Gas. Konsentrasi etanol yang optimum didapatkan pada fermentasi hari keempat sebesar 6,212% dengan konsentrasi urea optimum yaitu 0,5%.
PERBANDINGAN KINERJA ANALITIK HASIL PENENTUAN ION LOGAM Pb DENGAN MENGGUNAKAN SPEKTROFOTOMETER SERAPAN ATOM DI BERBAGAI LABORATORIUM SAMARINDA arifin syam syam; bohari Yusuf; Aman Sentosa Panggabean
JURNAL ATOMIK Vol 6 No 2 (2021)
Publisher : Jurusan Kimia FMIPA UNMUL

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The study about the comparison of analytical performance of the determination of Pb metal ions using Atomic Absorption Spectrophotometer in various laboratories in samarinda has been conducted. The validated methods are linearity, detection limits, quantity and precision limits. The results showed, a standardized regression test obtained by laboratory A, a value of R2 ≥ 0.4103, laboratory B a value of R2 ≥ 0.983 and laboratory C, a value of R2 ≥ 0.000. The detection limit found at laboratory A was 0.6728 µg/L, laboratory B was 0.1989 µg/L and laboratory C was 0.0001 µg/L. The quantization limit obtained by laboratory A was 0.6817 µg/L, laboratory B was 0.6063 µg/L and laboratory C was 0.0001 µg/L. The precision test of laboratory A was 7.2208, laboratory B was 5.4557 and laboratory C was 0,000. The result of determining Pb of gas station soil samples in laboratory A is 0.737 µg/L and laboratory B is 0.391 µg/L, so that means they have exceeded the quality standards set by the Indonesian National Standard (INS).
Co-Authors Agustin Pratiwi Alimuddin Alimuddin Alimuddin Aman Sentosa Panggabean arifin syam syam Azwar Amin Firman Arif Saputra Ika Yekti Lianasari Indra Kurniawan Isma Avessa Lianasari, Ika Yekti Manja’a Khasanah Marlisa Roro Putri Moh Syaiful Arif Moh. Syaiful Arif Nur Asmawati Nurhafida Rahmat Gunawan Rientha Septiana Rudi Kartika, Rudi Rusnawati Rusnawati Saibun Sitorus Savitri Nur Bahriana Selvi Yanti Soerja Koesnarpadi Suaibatul Aslamiah Suci Andriyaningrum Syafrizal Syafrizal Teguh Wirawan Tiara Izza Nafila Yuni Astria