PMID- 29062972
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200930
IS  - 2405-8440 (Print)
IS  - 2405-8440 (Electronic)
IS  - 2405-8440 (Linking)
VI  - 3
IP  - 10
DP  - 2017 Oct
TI  - Electrochemical impedance spectroscopy measurements for determination of 
      derivatized aldehydes in several matrices.
PG  - e00392
LID - 10.1016/j.heliyon.2017.e00392 [doi]
LID - e00392
AB  - A simple, selective and sensitive electrochemical method is described for the 
      determination of different aldehydes at glassy carbon electrode using 
      electrochemical impedance spectroscopy (EIS). The measurements were performed 
      after their derivatization with 2,4-dinitrophenylhydrazine (DNPH) in acidic 
      medium. The impedance measurements were investigated in the frequency range from 
      100 mHz to 100 kHz at a potential of 1.0 V versus Ag/AgCl. The Nyquist plots were 
      modeled with a Randle's equivalent circuit. The charge transfer resistance was 
      identified as the dependent parameter on relevant concentration of aldehydes 
      (determined as their hydrazones). Under the optimized conditions, the linearity 
      was established over the concentration range of 1000-0.05 mumol L(-1). The limits 
      of detection (LODs) obtained were from 0.097 to 0.0109 mumol L(-1). Finally, the 
      developed method has been applied to the determination of aldehydes in drinking 
      water, orange juice and apple vinegar samples with relative standard deviations 
      (RSDs) < 3.1% and acceptable recovery rate (around of 80%).
FAU - Boumya, W
AU  - Boumya W
AD  - Univ. Hassan 1, Laboratoire de Chimie et Modelisation Mathematique, Faculte 
      Polydisciplinaire, Khouribga 25000, Morocco.
AD  - Univ. Chouaib Doukkali, Laboratoire des Sciences de l'Ingenieur pour l'Energie, 
      Ecole Nationale des Sciences Appliquees, El Jadida, Morocco.
FAU - Laghrib, F
AU  - Laghrib F
AD  - Univ. Hassan 1, Laboratoire de Chimie et Modelisation Mathematique, Faculte 
      Polydisciplinaire, Khouribga 25000, Morocco.
FAU - Lahrich, S
AU  - Lahrich S
AD  - Univ. Hassan 1, Laboratoire de Chimie et Modelisation Mathematique, Faculte 
      Polydisciplinaire, Khouribga 25000, Morocco.
FAU - Farahi, A
AU  - Farahi A
AD  - Univ. Hassan 1, Laboratoire de Chimie et Modelisation Mathematique, Faculte 
      Polydisciplinaire, Khouribga 25000, Morocco.
AD  - Univ. Ibn Zohr, Equipe de Catalyse et Environnement, Faculte de Sciences, Cite 
      Dakhla, Agadir, BP 8106, Morocco.
FAU - Achak, M
AU  - Achak M
AD  - Univ. Chouaib Doukkali, Laboratoire des Sciences de l'Ingenieur pour l'Energie, 
      Ecole Nationale des Sciences Appliquees, El Jadida, Morocco.
FAU - Bakasse, M
AU  - Bakasse M
AD  - Univ. Chouaib Doukkali, Equipe d'Analyse des Micropolluants Organiques, Faculte 
      de Sciences, El Jadida, Morocco.
FAU - El Mhammedi, M A
AU  - El Mhammedi MA
AD  - Univ. Hassan 1, Laboratoire de Chimie et Modelisation Mathematique, Faculte 
      Polydisciplinaire, Khouribga 25000, Morocco.
LA  - eng
PT  - Journal Article
DEP - 20171012
PL  - England
TA  - Heliyon
JT  - Heliyon
JID - 101672560
PMC - PMC5647472
OTO - NOTNLM
OT  - Food analysis
EDAT- 2017/10/25 06:00
MHDA- 2017/10/25 06:01
PMCR- 2017/10/12
CRDT- 2017/10/25 06:00
PHST- 2017/04/27 00:00 [received]
PHST- 2017/06/25 00:00 [revised]
PHST- 2017/08/17 00:00 [accepted]
PHST- 2017/10/25 06:00 [entrez]
PHST- 2017/10/25 06:00 [pubmed]
PHST- 2017/10/25 06:01 [medline]
PHST- 2017/10/12 00:00 [pmc-release]
AID - S2405-8440(17)31017-4 [pii]
AID - e00392 [pii]
AID - 10.1016/j.heliyon.2017.e00392 [doi]
PST - epublish
SO  - Heliyon. 2017 Oct 12;3(10):e00392. doi: 10.1016/j.heliyon.2017.e00392. 
      eCollection 2017 Oct.