Studi Gangguan Hg(II) Dalam Analisa Besi (III) Dengan Pengompleks 1,10-Fenantrolin Pada Ph 3,5 Secara Spektrofotometri UV-VIS

Setyowati, Wiwik (2017) Studi Gangguan Hg(II) Dalam Analisa Besi (III) Dengan Pengompleks 1,10-Fenantrolin Pada Ph 3,5 Secara Spektrofotometri UV-VIS. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

Text 1413100016-Undergraduate-Thesis.pdf - Published Version Restricted to Repository staff only Download (1MB)

Abstract

Pada penelitian ini telah dilakukan studi gangguan ion
Hg(II) dalam analisa besi(III) dengan pengompleks 1,10-
Fenantrolin pada pH 3,5 secara spektrofotometri UV-Vis.
Kompleks Fe(III)-Fenantrolin menyerap sinar pada serapan
panjang gelombang maksimum 320 nm dengan nilai absorbansi
0,296. Sedangkan, kompleks Hg(II)-Fenantrolin menyerap sinar
pada panjang gelombang maksimum 317 nm dengan nilai
absorbansi 0,274. Pada penentuan kurva kalibrasi diperoleh
persamaan garis linier yaitu y = 0,08488x + 0,02548 dengan nilai
koefisien korelasi (r) adalah 0,998 dan koefisien determinasi (r2)
adalah 0,996. Hasil analisa gangguan ion Hg2+ menunjukkan
bahwa ion Hg2+ mulai mengganggu analisa kompleks Fe(III)-
Fenantrolin pada konsentrasi 0,3 ppm dengan % recovery sebesar
67,8% dan nilai RSD 41,72 ppt serta CV 4,1 %.
==================================================================================================================
This research has been conducted interference study of
Hg(II) on iron(III) determination with 1,10-phenanthroline at pH
3,5 by Spectrophotometry UV-Vis method. Fe(III)-
Phenanthroline complex absorb light at the wavelenght of
absorption maximum at 320 nm with absorbance value is 0,296.
Meanwhile, the Hg(II)-Phenanthroline complex absorb light at a
wavelength 317 nm with a maximum absorbance value is 0,274.
In determining the calibration curve obtained linier equation is y
= 0,08488x + 0,02548 with correlation coefficient (r) is 0,998 and
determination coefficient (r2) is 0,996. Ion interference of Hg2+
analysis results indicated that ion Hg2+ began to interfere with the
Fe(III)-Phenanthroline complex at concentrations of 0,3 ppm to
%recovery is 67,8% and the value of RSD 41,72 ppt and CV
4,1%.

Item Type:	Thesis (Undergraduate)
Additional Information:	RSKi 543.55 Set s-1
Uncontrolled Keywords:	Besi(III), 1,10-Fenantrolin, Hg(II), Spektrofotometri UV-Vis.
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Users 13 not found.
Date Deposited:	15 May 2017 07:29
Last Modified:	28 Dec 2017 08:47
URI:	http://repository.its.ac.id/id/eprint/41265

Actions (login required)

View Item