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ITS » Undergraduate Theses » Fisika
Posted by dewi007 at 08/08/2008 11:50:50  •  5166 Views


PENGARUH AGEN PENOPENG ASAM TARTARAT DAN EDTA PADA ANALISA BESI MENGGUNAKAN PENGOMPLEKS 110-FENANTROLIN DENGAN KEHADIRAN ION ZN II PADA PH 45 SECARA SPEKTROFOTOMETRI UV-VIS

THE EFFECT OF TARTARIC ACID AND EDTA AS MASKING AGENT ON IRON DETERMINATION WITH 110-PHENANTROLINE IN THE PRESENCE OF Zn II AT pH 45 USING SPECTROPHOTOMETRY UV-Vis METHOD

Author :
Risdiana, Eriza 




ABSTRAK

Analisa besi menggunakan pereduksi natrium tiosulfat Na2S2O3 dan pengompleks 110-fenantrolin pada pH 45 secara spektrofotometri UV-Vis yang menyerap pada panjang gelombang maksimum 511 nm dapat diganggu dengan adanya ion Zn II. Konsentrasi Zn II mulai mengganggu pada penambahan 01 ppm dengan recovery sebesar 93414. Agen penopeng asam tartarat atau EDTA ditambahkan untuk mengurangi interferensi ion Zn II melalui pembentukan kompleks yang lebih stabil dengan ion Zn II. EDTA dapat menopeng ion Zn II hingga penambahan 01 ppm dengan recovery sebesar 95502 sedangkan asam tartarat sudah tidak dapat menopeng ion Zn II pada konsentrasi 01 ppm dengan recovery sebesar 86828.


ABSTRACT

Spectrophotometry UV-Vis method was used for determination of iron II using 110-phenantroline at pH 45 in which iron III was reduced by Na2S2O3. This complex giving maximum wave length at 511 nm. Fe II-110-phenantroline complex could be interferenced with Zn II ion at 01 ppm concentrate and recovery value of 93414. Tartaric acid and EDTA as masking agent were added to reduce the interference of Zn II by forming more stable complex with Zn II ion. EDTA can masking Zn II until 01 ppm Zn II was added with recovery value of 95502. The presence of 01 ppm Zn II was not already masked by tartaric acid with recovery value of 86828.



Keywordsbesi, 1,10-fenantrolin, Zn (II), penopengan, asam tartarat, EDTA.
 
Subject:  Spektofotometer
Contributor
  1. Drs. Djarot Sugiarso K. S., MS
Date Create: 08/08/2008
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-Undergraduate-RSMa 543.55 Ris p
Collection ID: RSMa 543.55 Ris p
Call Number: 3100008031863


Source
Undergraduate These, Chemical Engineering, RSMa 543.55 Ris p, 2007

Coverage
ITS

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Copyright @2007 by ITS Library. This publication is protected by copyright and permission should be obtained from the ITS Library prior to any prohibited reproduction, storage in a retrievel system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s), write to ITS Library




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ITS-Undergraduate-RSMa 543.55 Ris p-1936.pdf




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