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All Journal CHEMICA Jurnal Teknik Kimia GRADIEN PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) Ideas: Jurnal Pendidikan, Sosial dan Budaya Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Molluca Journal of Chemistry Education (MJoCE) Indonesian Journal of Community Empowerment and Service Aceh International Journal of Science and Technology Andromeda: Jurnal Pengabdian Masyarakat Rafflesia Bencoolen Journal of Pharmacy Rafflesia Journal of Natural and Applied Sciences (RJNAS) Jurnal Abdimas Bencoolen
Devi Ratnawati
Department Of Chemistry Faculty Of Mathematics And Natural Sciences Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Journal : PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia)

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Validitas Penetapan Kadar Tembaga dalam Sediaan Tablet Multivitamin dengan Metode Sperktrofotometri UV-VIS Wiranti Sri Rahayu; Asmiyenti Djaliasrin Djalil; Devi Ratnawati
PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) Jurnal Pharmacy, Vol. 05 No. 02 Agustus 2007
Publisher : Pharmacy Faculty, Universitas Muhammadiyah Purwokerto

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Abstract

Penetapan kadar tembaga dengan metode spektrofotometri ultraviolet-visibel didasarkan pada efek katalitik dari Cu dalam reaksi redoks antara biru metiled dan asam askorbat, dimana absorbasinya dimonitor pada panjang gelombang 666 nm. Kurva kalibrasi dengan rentang konsentrasi antara 0,5-1,3 ppm dengan kondisi optimum mempunyai nilai regresi linear -0,9739, limit deteksi 0,385 ppm dan recovery 100%. Koefisien variasi adalah 1,91 % (<2%).
Co-Authors Abdul Rahman Afriana Mayang Sentani Agus Martono Agus Martono Agus Martono Hadi Putranto Agus Martono HP Asmiyenti Djaliasrin Djalil Charles Banon Cindy Wulandari Devi Rizanty Dwi Sutanto, Teja Dwita Oktiarni Dyah Fitriani Eni Widiyati Eni Widiyati Evi Maryanti Fadilah Sari Ghufira Ghufira Hadi Putranto Ibdal Satar Lesta Nurul Jayanti Lusiana . Martono Hadi Putranto, Agus Morina Adfa Nadia Arum Pangestu Nurhadi, Nurhadi Ria Nurwidiyani Sari, Yanci Novita Syalfinaf Manaf Teja Dwi Sutanto Totok Eka Suharto Triawan, Deni Agus Wahidah Fitriyanti Wiranti Sri Rahayu