Nira Dwi Puspita, 1117011040 (2015) STUDI ANALISIS Co MENGGUNAKAN LIGAN BASA SCHIFF (1.5 – DIFENIL KARBAZONA DAN ANILINA) DENGAN SPEKTROFOTOMETRI ULTRAUNGU-TAMPAK. FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM, UNIVERSITAS LAMPUNG.
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Abstrak (Berisi Bastraknya saja, Judul dan Nama Tidak Boleh di Masukan)
ABSTRAK Studi ini dilakukan untuk memeriksa kemungkinan pembentukan kompleks antara logam Co dan ligan basa Schiff sebagai metode untuk mengukur konsentrasi Co dalam larutan. Metode ini diusulkan berdasarkan kemampuan ligan untuk berikatan dengan logam transisi disebabkan adanya elektron tak berpasangan pada atom nitrogennya. Hasil penelitian menunjukkan ion Co membentuk kompleks dengan ligan basa Schiff (1.5 – difenil karbazona dan anilina) pada perbandingan optimum (1:2). Hasil analisis menggunakan Spektrofotometer Ultraungu-Tampak menunjukkan panjang gelombang maksimum kompleks adalah 527 nm. Kompleks ditemukan optimum pada pH=6 dan waktu kestabilan 30 menit. Diketehui juga penambahan ion Ni mempengaruhi serapan karakteristik kompleks. Kata Kunci : Studi Analisis, Kobalt, Ligan Basa Schiff (1.5-Difenil Karbazona dan Anilina), Spektrofotometri Ultraungu-Tampak. ABSTRACT This study was carried out to asses the feasibility of complex formation between Co metal and Schiff base ligand as a method for determination of Co concentration in solution. This proposed method is based on the ability of the ligand to bound with transition metals due to the presence of an unpaired electron in its nitrogen atom. The experimental results indicate that Co ions formed a complex with Schiff base ligand (1.5-dyphenyl carbazone and aniline) at optimum ratio (1:2). Results of analysis using Spectrophotometer Ultraviolet-Visible showed the maximum wavelength of the complex is 527 nm. Complex was found at optimum pH=6 and stability time of 30 minutes. It was also found that addition of Ni ions influence the characteristics absorption of the complex. Key words : Study of Analysis, Cobalt, Schiff Base Ligand (1.5-Dyphenyl Carbazone and Aniline), Spectrophotometry Ultraviolet-Visible.
| Jenis Karya Akhir: | Skripsi |
|---|---|
| Subyek: | > QD Chemistry |
| Program Studi: | FAKULTAS MIPA > Prodi Kimia |
| Pengguna Deposit: | 9638602 . Digilib |
| Date Deposited: | 11 Dec 2015 07:31 |
| Terakhir diubah: | 11 Dec 2015 07:31 |
| URI: | http://digilib.unila.ac.id/id/eprint/15635 |
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