Year 2019, Volume 9 , Issue 4, Pages 742 - 750 2019-10-15

Simultaneous Electrochemical Detection of Ascorbic Acid and Dopamine on PbO-Graphene Electrode
PbO-Grafen Elektrot Yüzeyinde Askorbik Asit ile Dopaminin Eşzamanlı Elektrokimyasal Tespiti

Hülya Öztürk Doğan [1] , Bingül Kurt Urhan [2] , Tuba Öznülüer Özer [3]


In this study, cathodic electrodeposition of lead oxide-graphene (PbO-G) nanocomposites on Au electrode surface was carried out by a new one-pot electrochemical method in the same solution containing Pb+2 and graphene oxide. XRD, XPS, SEM, and EDS spectroscopy techniques were employed to analyze the morphological and structural characteristics of the composite materials. For simultaneous electrochemical detection of ascorbic acid (AA) and dopamine (DA), the PbO-G nanocomposite exhibited a higher current density and lower oxidation potential than the bare Au and PbO-modified Au electrodes. Also, the amperometric detection of dopamine on PbO-G electrode surface was investigated and the limit of detection was estimated as 0.001 µM in the linear range from 0.5 µM to 100 µM (at a signal-to-noise ratio of 3.0). This PbO-G nanocomposite-modified electrode provided a novel, simple, and low-cost route for the electrochemical detection and amperometric sensing of DA in the presence of AA.

Bu çalışmada, kurşun oksit-grafen (PbO-G) nanokompozitlerinin Au elektrot yüzeyinde katodik elektrodepozisyonu; yeni bir elektrokimyasal metot kullanılarak Pb+2 ve grafen oksit ihtiva eden aynı çözelti içerisinde, sabit tek bir potansiyelde gerçekleştirildi. Elde edilen kompozit malzemenin morfolojik ve yapısal özelliklerini analiz etmek için XRD, XPS, SEM ve EDS spektroskopisi teknikleri kullanıldı. PbO-G nanokompoziti askorbik asit (AA) ile dopaminin (DA) eşzamanlı elektrokimyasal tespiti için çıplak Au ve PbO-modifiye edilmiş Au elektrotlardan daha yüksek bir akım yoğunluğu ve daha düşük oksidasyon potansiyeli gösterdi. Ayrıca DA’in PbO-G elektrot yüzeyinde amperometrik tayini incelendi ve 0.5 µM ile 100 µM arasındaki doğrusal aralıkta tayin sınırı (sinyal/gürültü oranı=3 için) 0.001±0.00028 µM olarak hesaplandı. PbO-G nanokompozit modifiye elektrot, AA varlığında DA’in elektrokimyasal tespiti ve amperometrik tayini için yeni, basit ve düşük maliyetli bir analiz yöntemi sağlamaktadır.

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Primary Language tr
Subjects Engineering
Journal Section Articles
Authors

Orcid: 0000-0002-4072-7744
Author: Hülya Öztürk Doğan (Primary Author)
Institution: ATATÜRK ÜNİVERSİTESİ, ERZURUM MESLEK YÜKSEKOKULU
Country: Turkey


Orcid: 0000-0002-8742-6789
Author: Bingül Kurt Urhan
Institution: ATATÜRK ÜNİVERSİTESİ, FEN BİLİMLERİ ENSTİTÜSÜ, NANOMALZEMELER (DR)
Country: Turkey


Orcid: 0000-0001-5148-2984
Author: Tuba Öznülüer Özer
Institution: ATATÜRK ÜNİVERSİTESİ, FEN FAKÜLTESİ, KİMYA BÖLÜMÜ
Country: Turkey


Dates

Publication Date : October 15, 2019

Bibtex @research article { gumusfenbil520362, journal = {Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi}, issn = {2146-538X}, eissn = {2146-538X}, address = {}, publisher = {Gümüşhane Üniversitesi}, year = {2019}, volume = {9}, pages = {742 - 750}, doi = {10.17714/gumusfenbil.520362}, title = {PbO-Grafen Elektrot Yüzeyinde Askorbik Asit ile Dopaminin Eşzamanlı Elektrokimyasal Tespiti}, key = {cite}, author = {Öztürk Doğan, Hülya and Kurt Urhan, Bingül and Öznülüer Özer, Tuba} }
APA Öztürk Doğan, H , Kurt Urhan, B , Öznülüer Özer, T . (2019). PbO-Grafen Elektrot Yüzeyinde Askorbik Asit ile Dopaminin Eşzamanlı Elektrokimyasal Tespiti. Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi , 9 (4) , 742-750 . DOI: 10.17714/gumusfenbil.520362
MLA Öztürk Doğan, H , Kurt Urhan, B , Öznülüer Özer, T . "PbO-Grafen Elektrot Yüzeyinde Askorbik Asit ile Dopaminin Eşzamanlı Elektrokimyasal Tespiti". Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi 9 (2019 ): 742-750 <https://dergipark.org.tr/en/pub/gumusfenbil/issue/49427/520362>
Chicago Öztürk Doğan, H , Kurt Urhan, B , Öznülüer Özer, T . "PbO-Grafen Elektrot Yüzeyinde Askorbik Asit ile Dopaminin Eşzamanlı Elektrokimyasal Tespiti". Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi 9 (2019 ): 742-750
RIS TY - JOUR T1 - PbO-Grafen Elektrot Yüzeyinde Askorbik Asit ile Dopaminin Eşzamanlı Elektrokimyasal Tespiti AU - Hülya Öztürk Doğan , Bingül Kurt Urhan , Tuba Öznülüer Özer Y1 - 2019 PY - 2019 N1 - doi: 10.17714/gumusfenbil.520362 DO - 10.17714/gumusfenbil.520362 T2 - Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi JF - Journal JO - JOR SP - 742 EP - 750 VL - 9 IS - 4 SN - 2146-538X-2146-538X M3 - doi: 10.17714/gumusfenbil.520362 UR - https://doi.org/10.17714/gumusfenbil.520362 Y2 - 2019 ER -
EndNote %0 Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi PbO-Grafen Elektrot Yüzeyinde Askorbik Asit ile Dopaminin Eşzamanlı Elektrokimyasal Tespiti %A Hülya Öztürk Doğan , Bingül Kurt Urhan , Tuba Öznülüer Özer %T PbO-Grafen Elektrot Yüzeyinde Askorbik Asit ile Dopaminin Eşzamanlı Elektrokimyasal Tespiti %D 2019 %J Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi %P 2146-538X-2146-538X %V 9 %N 4 %R doi: 10.17714/gumusfenbil.520362 %U 10.17714/gumusfenbil.520362
ISNAD Öztürk Doğan, Hülya , Kurt Urhan, Bingül , Öznülüer Özer, Tuba . "PbO-Grafen Elektrot Yüzeyinde Askorbik Asit ile Dopaminin Eşzamanlı Elektrokimyasal Tespiti". Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi 9 / 4 (October 2019): 742-750 . https://doi.org/10.17714/gumusfenbil.520362
AMA Öztürk Doğan H , Kurt Urhan B , Öznülüer Özer T . PbO-Grafen Elektrot Yüzeyinde Askorbik Asit ile Dopaminin Eşzamanlı Elektrokimyasal Tespiti. Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi. 2019; 9(4): 742-750.
Vancouver Öztürk Doğan H , Kurt Urhan B , Öznülüer Özer T . PbO-Grafen Elektrot Yüzeyinde Askorbik Asit ile Dopaminin Eşzamanlı Elektrokimyasal Tespiti. Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi. 2019; 9(4): 750-742.