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ITS » Master Theses » kimia S2 Posted by tondoindra@gmail.com at 15/03/2016 09:18:21 • 1561 Views
SILICA GELNiO NANOPARTICLE MODIFIED SILVER PASTE ELECTRODE FOR DETECTION INSULIN
Author : ROHMAH, FAIZATUR ( 1412201024 )
ABSTRAK
Penelitian ini elektroda perak termodifikasi pasta silika gelpartikel nano
NiO dapat dibuat dengan secara elektrokimia. Pasta silika gel dan partikel nano
NiO disisipkan ke dalam tabung elektroda dan permukaannya diratakan
menggunakan kertas hvs. Elektroda digunakan sebagai elektroda kerja untuk
deteksi insulin menggunakan voltametri siklis. Kinerja elektroda perak
termodifikasi ditunjukkan dengan adanya puncak katodik oleh respon terhadap
insulin. Elektroda dengan komposisi optimum yaitu pada massa parafin padat
parafin cair silika gel dan NiO secara berturut-turut 003 gr 004 gr 005 gr dan
003 gr. Pengukuran optimum didapatkan pada kondisi pH 7 dari larutan insulin.
Elektroda tersebut memberikan kenaikan sinyal arus seiring kenaikan konsentrasi
insulin. Sinyal arus katodik menunjukkan kenaikkan sinyal arus pada potensial -
0667 V. Hasil karakterisasi secara elektrokimia elektroda pasta ini diperoleh limit
deteksi 4.92257 nM dan sensitivitasnya sebesar 1.6353 120583119860. 11989911987287221. 11989811989887222. Uji
repeatibilitas dilakukan untuk mengetahui presisi dan akurasi perhitungan dari
elektroda perak termodifikasi.
ABSTRACT
In this research silica gelNiO nano particle modified silver electrode was
done and used for electrochemical detection of insulin. Silica gelNiO nano
particle paste was prepared with mixing amount directly. The electrochemical
detection was done by using cyclic voltammetry method. Response of silica gel
modified silver electrode against insulin solution showed increasing in cathodic
current signal with increasing concentration of insulin. The optimum
copmposition of electrode for solid paraffin liquid paraffin silica gel and NiO
nanoparticle is 0.03 gr 0.04 gr 0.05 gr and 0.03 gr. The optimum pH is in 7. The
response showed increasing of the signal at reduction potential -0667 V limit of
detection and sensitivity of the electrode are 4.92257 nM and
1.6353 120583119860. 11989911987287221. 11989811989887222. Silica gelNiO nano particle modified silver electrode
gives no signals.
Keywords:
elektroda perak, silika gel, insulin, voltametri siklis, partikel nano
NiO
Subject
: PASTA SILIKA GEL
Contributor
Dr. rer. Nat Fredy Kurniawan M.Si
Date Create
: 15/03/2016
Type
: Text
Format
: PDF
Language
: Indonesian
Identifier
: ITS-Master-14103150001440
Collection ID
: 14103150001440
Call Number
: RTKi 541.345 13 Roh e
Source Master Theses Of Chemistry RTKi 541.345 13 Roh e, 2016
Coverage ITS Community
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