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All Journal Alchemy : Journal of Chemistry Jurnal Matematika & Sains JURNAL PENELITIAN SAINTIKA Indonesian Journal of Chemistry Indonesian Journal of Chemical Analysis (IJCA) EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Warta AKAB
Muhammad Bachri Amran
Analytical Chemistry Research Group, Institut Teknologi Bandung, Jl. Ganesha No 10, Bandung 40132, Indonesia
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Environmental Science Materials Science & Nanotechnology Mathematics

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Journal : Jurnal Matematika

 1 
Ekstraksi dan Pemisahan Penisilin G dari Fenilasetat dengan Teknik Membran Cair Emulsi Imam Santoso; Buchari Buchari; Muhammad Bachri Amran; Aminudin Sulaeman
Jurnal Matematika & Sains Vol 12, No 3 (2007)
Publisher : Institut Teknologi Bandung

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Abstract

The separation and purification of penicillin G from phenyl acetic acid (PAA) is very difficult to be carried out becausethe two compounds are weak acids and the two compounds can change from one to another by influence of pH. The aimof this research is to establish the optimal conditions for the extraction and separation of penicillin G from phenylaceticacid using the emulsion liquid membrane technique. The optimal conditions were ratio of internal phase volume tomembrane phase volume of 1:1; time of stiring for emulsion preparation of 1 minute; emulsion contact rate of 300 rpm;emulsion contact time of 15 minutes; rate of stirring of emulsion of 2000 rpm; rest time of emulsion of 13 minutes;concentration of penicillin G as external phase 375 ppm; and concentration of surfactant 5% (v/v). At these conditionspenicillin G can be extracted and separated from phenylacetic acid with a separation factor of 19.3 and a contact timeof 15 minutes. Thus the technique of emulsion liquid membrane may be used as a reasonably effective method toseparate penicillin G from phenylacetic acid.
Spesiasi Senyawa Organotimah dengan Teknik Kromatografi Pasangan Ion-Fasa Terbalik Aman Sentosa Panggabean; Muhammad Bachri Amran; Buchari Buchari; Sadijah Achmad
Jurnal Matematika & Sains Vol 12, No 4 (2007)
Publisher : Institut Teknologi Bandung

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The application of Ion Pair-Reversed Phase chromatography (IP-RP) technique for speciation of dibutyltin (DBT),tributyltin (TBT) and triphenyltin (TPhT) species has been studied. All of the species were able to separate on an ionpair-reversed phase chromatographic column. The eluats were detected online by the use of Hydride Generation-QuartzFurnace Atomic Absorption Spectrophotometry (HG-QFAAS) method. The eluent consisted of a mixture of methanol :water : acetic acid with a composition of 80:19:1, containing 1 mM of decane sulfonate as ion pairing reagent. The pHof the eluent was adjusted with 1 M H2SO4. The separation of all the species at the above conditions was good, whichwas shown by the values of the fundamental chromatographic parameters. The capacity factor (k) for DBT, TBT andTPhT species were 0.27, 2.54 and 5.92 respectively. The resolution (Rs) values for DBT-TBT and TBT-TPhT separationwere 2.92 and 2.42 respectively, while the selectivity for DBT-TBT and TBT-TPhT were 9.76 and 3.50, respectively.These data show the effectiveness of the developed chromatographic system.
Pengaruh Komposisi Asam Bis(2-Etilheksil)Fosfat (D2EHPA) dan Tributil Fosfat (TBP) dalam Resin Amberlite Xad-16 terhadap Sorpsion-Ion La(III), Nd(III) dan Gd(III) Ibnu Khaldun; Buchari Buchari; Muhammad Bachri Amran; Aminudin Sulaeman
Jurnal Matematika & Sains Vol 14, No 1 (2009)
Publisher : Institut Teknologi Bandung

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Abstract

Sorption of La(III), Nd(III), and Gd(III) ions with solven-timpregnated resins using bis(2-ethylhexyl)phosphoric acid (D2EHPA) and tributhylphosphate (TBP) as extractants and Amberlite XAD-16 as a polymeric support has been studied. The impregnated resins containing various amounts of extractants have been prepared by the wet and dry methods. The effects of pH, types, of extractant, extractant content (extractants/resin ratios of 10/90, 20/80, 50/50, 60/40 wt.%) and contact time on sorption of those metalic ions have been investigated by batch method. The sorption capacity of Amberlite XAD-16 resin previously prepared by the wet method with a 60/40 extractant/resin mass ratio for TBP, D2EHPA/TBP, and D2EHPA were 104.3 mg/g, 99.1 mg/g and 86.2 mg/g resin, respectively. Meanwhile, sorption capacity of Amberlite XAD-16 resin previously prepared by dry method was found to be 645 mg/g; 419.16 mg/g, and 386.9 mg/g resin, respectively. The sorption percentage of the studied metal ions was within the range of 90- 99% for TBP, D2EHPA/TBP and D2EHPA XAD-16 resins at 20/80 extractant/resin mass ratio.
Co-Authors Abdul Rohman Aman Sentosa Panggabean Aminudin Sulaeman Anak Agung Istri Sri Wiadnyani Anita Alni Antonio Kautsar Bambang Prajogo Eko Wardoyo Buchari . Buchari Buchari Eti Rohaeti Gina Maulia Herlinawati . Ibnu Khaldun Imam Santoso Indah Puspita Sari Kartika, Siska Ela Lasmaryna Sirumapea Mohamad Rafi Mohammad Ali Zulfikar Nursifa Mawadah Rusnadi, - Sadijah Achmad Syifa Muflihah Utami Dyah Syafitri Wulan Tri Wahyuni