Pengaruh ION Pengganggu AI (III) dan Fe (III) pada Penentuan Zn (II) dengan Alizarin Red S (ARS) secara Spektrofotometri

Sufyani, Fahrullah (2010) Pengaruh ION Pengganggu AI (III) dan Fe (III) pada Penentuan Zn (II) dengan Alizarin Red S (ARS) secara Spektrofotometri. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penentuan Zn dapat dilakukan dengan pengompleksan menggunakan Alizarin Red S (ARS) dan dianalisis secara spektrofotometri UV-Vis pada panjang gelombang 445 run. Kurva kalibrasi linear yang dihasilkan pada konsentrasi Zn 0-20 ppm memiliki fl sebesar 0,995. Penambahan ion Al1+ dan Fe1+ mulai mengganggu pengukuran absorbansi Zn pada konsentrasi masing-masing 15 ppm dan 3 ppm. Metode ini sederhana, sensitif dan tidak mahal, sehingga dapat diterapkan untuk menentukan kadar Zn pada alga merah Eucheuma cottonii, yaitu sebesar 24,2491 mg/kg.
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Zinc determination may be carried out by complexing it with Alizafin Red S (ARS) and analyzed by spectrophotometry UV-Vis at 445 nm wavelength. The linear calibration curve resulted in Zn concentration of 0-20 ppm has r'- = 0,995. Addition of All+ and Fe3+ could start interfening the absorbance measurement of Zn at 15 ppm dan 3 ppm respectively. This method is simple, sensitive, and inexpensive, so it may be applied to dotonnine Zn in a rod soaweed-Eucheuma cottonii, which is 24,2491 mg/kg.

Item Type:	Thesis (Other)
Additional Information:	RSKi 543.55 Suf p
Uncontrolled Keywords:	Seng (Zn), ion pengganggu, Al1+, Fe3+, Alizarin Red S (ARS), spektrofotometri UV-Vis,zinc (Zn), interference ion, All+, Fel+, Alizarin RedS (ARS), spectrophotometry UV-Vis
Subjects:	Q Science > QD Chemistry > QD481 Chemical structure.
Divisions:	Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	magang .
Date Deposited:	08 Oct 2026 08:02
Last Modified:	08 Oct 2026 08:02
URI:	http://repository.its.ac.id/id/eprint/145444

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