Electrochemical determination of Sudan IV in food samples by using graphene-modified glassy carbon electrodes

Meifeng CHEN; Xinying MA; Xia LI

Makale detayları

Electrochemical determination of Sudan IV in food samples by using graphene-modified glassy carbon electrodes

Yazarlar:

Meifeng CHEN | Xinying MA | Xia LI

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2013 Vol.37 Issue 6, pp.959-965

Belge Tipi:

Makale

Yayın Tarihi:

5/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000727299

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

A simple and sensitive modified electrode was fabricated  with graphene via the drop-casting method and applied for the  electrochemical detection of Sudan IV. Cyclic voltammetry (CV) was used to  investigate the electrochemical behaviors of Sudan IV in phosphate buffer  solution (PBS). The experimental conditions such as determining medium, scan  rate, and accumulation time were optimized for the determination of Sudan  IV. The sensor has excellent performance associated with high sensitivity, a  low detection limit (6.00 \times  10-8 M), and a wide linear range of  2.00 \times  10-7 M to 8.00 \times  10-5 M with a correlation  coefficient as follows: ipc (A) = 4.37 \times  10-6  + 0.35C,  R = 0.9930. Under optimized conditions, the applicability of the method  for rapid determination of Sudan IV was corroborated by analyzing food  samples with recoveries from 96.8% to 99.2%, and the related RSD  values were within the range of 1.51% to 3.78%. A simple extraction  procedure using ethanol was applied for the extraction of Sudan IV from  samples of chili powder and tomato sauce.

 

A simple and sensitive modified electrode was fabricated  with graphene via the drop-casting method and applied for the  electrochemical detection of Sudan IV. Cyclic voltammetry (CV) was used to  investigate the electrochemical behaviors of Sudan IV in phosphate buffer  solution (PBS). The experimental conditions such as determining medium, scan  rate, and accumulation time were optimized for the determination of Sudan  IV. The sensor has excellent performance associated with high sensitivity, a  low detection limit (6.00 \times  10-8 M), and a wide linear range of  2.00 \times  10-7 M to 8.00 \times  10-5 M with a correlation  coefficient as follows: ipc (A) = 4.37 \times  10-6  + 0.35C,  R = 0.9930. Under optimized conditions, the applicability of the method  for rapid determination of Sudan IV was corroborated by analyzing food  samples with recoveries from 96.8% to 99.2%, and the related RSD  values were within the range of 1.51% to 3.78%. A simple extraction  procedure using ethanol was applied for the extraction of Sudan IV from  samples of chili powder and tomato sauce.

Makale detayları

Electrochemical determination of Sudan IV in food samples by using graphene-modified glassy carbon electrodes

Yazarlar: Meifeng CHEN | Xinying MA | Xia LI

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2013 Vol.37 Issue 6, pp.959-965

Belge Tipi: Makale

Yayın Tarihi: 5/2013

Belge Dili: Türkçe

Document ID (Org No.): 2000727299

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Meifeng CHEN | Xinying MA | Xia LI

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2013 Vol.37 Issue 6, pp.959-965

Belge Tipi:

Makale

Yayın Tarihi:

5/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000727299

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527