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181 0 _ai
182 0 _ab
200 1 _aSimultaneous voltammetric determination of Brilliant Blue FCF and Tartrazine for food quality control
_fO. I. Lipskikh, J. Barek, V. Vyskocil [et al.]
203 _aText
_celectronic
300 _aTitle screen
330 _aVoltammetric determination of Tartrazine (Tz) and Brilliant Blue FCF (BB) in their mixture using novel type of carbon black-polyethylene composite electrode (CBPCE) with renewable surface modified by carbon ink (CI) was developed. Electrochemical properties of the tested dyes were investigated in 0.1 mol L?1 Britton-Robinson (BR) buffer by cyclic voltammetry (CV) and linear scan voltammetry (LSV). Simultaneous determination of the dyes is based on the application of supporting electrolytes with different pH: 2.0 for Tz and 10.0 for BB. Under the optimum experimental conditions, linear concentration dependences in the concentration ranges from 0.037 to 1.38 ?mol L?1 for Tz and from 0.025 to 2.52 ?mol L?1 for BB were obtained by LSV in the first-order derivative mode. Limits of detection (LODs) for Tz and BB were 0.019 and 0.011 ?mol L?1, respectively. The modified electrode showed good stability and reproducibility and was successfully applied for the determination of the mixture Tz and BB in a candy and soft drink products.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tTalanta
463 _tVol. 218
_v[121136, 7 p.]
_d2020
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _amodified electrode
610 1 _atartrazine
610 1 _abrilliant blue FCF
610 1 _alinear scan voltammetry
610 1 _aмодифицированные электроды
610 1 _aтартразин
610 1 _aвольтамперометрия
701 1 _aLipskikh
_bO. I.
_cchemist
_cengineer of Tomsk Polytechnic University
_f1984-
_gOlga Ivanovna
_2stltpush
_3(RuTPU)RU\TPU\pers\38489
701 1 _aBarek
_bJ.
_cCzech chemist
_cProfessor of Tomsk Polytechnic University, candidate of chemical Sciences
_f1949-
_gJiri
_2stltpush
_3(RuTPU)RU\TPU\pers\39743
701 1 _aVyskocil
_bV.
_gVlastimil
701 1 _aSaqib
_bM.
_cSpecialist in the field of electric power engineering
_cResearch Engineer of Tomsk Polytechnic University
_f1991-
_gMuhammad
_2stltpush
_3(RuTPU)RU\TPU\pers\45882
701 1 _aKhristunova
_bE.
_cchemist
_cengineer of Tomsk Polytechnic University
_f1992-
_gEkaterina
_2stltpush
_3(RuTPU)RU\TPU\pers\39741
701 1 _aKorotkova
_bE. I.
_cchemist
_cProfessor of Tomsk Polytechnic University, Doctor of chemical science
_f1965-
_gElena Ivanovna
_2stltpush
_3(RuTPU)RU\TPU\pers\31278
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа химических и биомедицинских технологий
_c(2017- )
_h8120
_2stltpush
_3(RuTPU)RU\TPU\col\23537
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа природных ресурсов
_bОтделение химической инженерии
_h8085
_2stltpush
_3(RuTPU)RU\TPU\col\23513
801 2 _aRU
_b63413507
_c20200827
_gRCR
856 4 _uhttps://doi.org/10.1016/j.talanta.2020.121136
942 _cCF