Firjatullah, Fatihatul (2023) Perbandingan Pereduksi Hidroksilamin Hidroklorida, Asam Sitrat, Dan Natrium Nitrit Dalam Penentuan Fe Menggunakan Spektrofotometer Uv-Vis Dengan Pengganggu Ion Ni2+. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian analisis gangguan ion Ni2+ dalam penentuan Fe(II) fenantrolin dengan pereduksi asam sitrat, natrium nitrit dan hidroksilamin hidroklorida pada kondisi optimum menggunakan sprektofotometer UV-vis telah berhasil dilakukan. Kompleks Fe(II) fenantrolin memiliki panjang gelombang pada 510 nm untuk ketiga pereduksi. Pengukuran kurva kalibrasi pada pereduksi asam sitrat memiliki nilai koefisien determinasi (r2) sebesar 0,9979. Pada pereduksi natrium nitrit memiliki nilai koefisien determinasi sebesar 0,9974. Pada pereduksi hidroksilamin hidroklorida kurva kalibrasi didapatkan nilai koefisien determinasi sebesar 0,9998. Ion Ni2+ dapat mengganggu analisis Fe(II) fenantrolin dengan menurunkan absorbansi besi. Pada pereduksi asam sitrat, Ni2+ mulai mengganggu saat penambahan konsentrasi ion Ni2+ sebesar 0,2 ppm dengan %recovery 94,2418%, sedangkan pada pereduksi hidroksilamin hidroklorida, Ni2+ mulai mengganggu pada konsentrasi 0,08 ppm dengan %recovery sebesar 94,46%. Sedangkan untuk pereduksi natrium nitrit, penambahan gangguan ion Ni2+ tidak dapat ditentukan pada konsentrasi berapakah penambahan Ion Ni2+ mulai mengganggu analisis Fe(II) fenantrolin.
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The analysis of Ni2+ ion interference in the determination of Fe(II) phenanthroline with citric acid, sodium nitrite and hydroxylamine hydrochloride reducers at optimum conditions using UV-vis spectrophotometer has been successfully carried out. The Fe(II) phenanthroline complex has a wavelength at 510 nm for all three reducers. Calibration curve measurements on citric acid reducers had a coefficient of determination (r2) of 0.9979. The sodium nitrite reducer had a coefficient of determination of 0.9974. In reducing hydroxylamine hydrochloride, the calibration curve obtained a coefficient of determination of 0.9998. Ni2+ ions can interfere with Fe(II) phenanthroline analysis by reducing the absorbance of iron. In citric acid reducers, Ni2+ began to interfere when adding Ni2+ ion concentration of 0.2 ppm with %recovery of 94.2418%, while in hydroxylamine hydrochloride reducers, Ni2+ began to interfere at a concentration of 0.08 ppm with %recovery of 94.46%. As for the sodium nitrite reducer, the addition of Ni2+ ion interference cannot be determined at what concentration the addition of Ni2+ ion begins to interfere with the analysis of Fe(II) phenanthroline
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Citric Acid, Fe(II) Phenanthroline, Hydroxylamine Hydrochloride, Sodium nitrite, Ni2+, Spectrophotometer UV-Vis,Asam Sitrat, Fe(II) fenantrolin, Hidroksilamin Hidroklorida, Natrium Nitrit,Ni2+, Spektrofotometer UV-VIS |
| Subjects: | Q Science > QD Chemistry > QD75.2 Chemistry, Analytic |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Muhammad Fatihatul Firjatullah |
| Date Deposited: | 08 Aug 2023 01:50 |
| Last Modified: | 08 Aug 2023 01:50 |
| URI: | http://repository.its.ac.id/id/eprint/103854 |
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