Simultaneous determination of paracetamol, caffeine and propyphenazone in ternary mixtures by micellar electrokinetic capillary chromatography

Emre, Deniz; Özaltı́n, Nuran

doi:10.1016/j.jchromb.2006.09.036

Cited by 71 publications

(36 citation statements)

References 27 publications

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“…Therefore, the investigation and determination of caffeine not only have clinical significances, but also can give beneficial guidance to people's health and life. Thus different methods have been developed for the determination of caffeine and its analog currently [6], such as spectrophotometry [7][8][9], RP-TLC [10], LC-ESI-MS [11], gas chromatography [12], high performance liquid chromatography (HPLC) [13,14], capillary gas chromatography and capillary electrophoresis [15,16]. Nevertheless, some of these methods, such as the chromatographic methods are time-consuming, expensive, and need complicated preconcentration or multisolvent extraction as well as trained technicians.…”

Section: Introductionmentioning

confidence: 99%

Nafion/multi-wall carbon nanotubes composite film coated glassy carbon electrode for sensitive determination of caffeine

Yang

et al. 2010

Journal of Electroanalytical Chemistry

113

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Section: Introductionmentioning

confidence: 99%

Nafion/multi-wall carbon nanotubes composite film coated glassy carbon electrode for sensitive determination of caffeine

Yang

et al. 2010

Journal of Electroanalytical Chemistry

113

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“…Saliva collection was performed with the Salivette device (Sarstedt AG & Co) [31]. Salivette is composed by appropriate sponge that was inserted in the mouth during one minute to absorb saliva (common volumes collected oscillate from 0.5 to 1.5 mL).…”

Section: Experimental 21 Saliva Collection Treatment and Solutionsmentioning

confidence: 99%

Development of a Simple and Fast Electrochemical Method to Evaluate Physical Stress in Athletes

Silva¹,

Cunha²,

Silva³

et al. 2011

Electroanalysis

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This work describes a simple and fast electrochemical method to evaluate the level of physical stress in athletes by monitoring total proteins in saliva. The proposed system is based on FIA with multiple pulse amperometric detection (FIA/MPA) using gold as the working electrode and 0.1 mol L À1 NaOH as the unique reagent. The proposed method is economical, fast (110 injections per hour) and allows the analysis of a small amount of saliva (~32 mL) with no sample treatment (just dilution). The results obtained by FIA/MPA were compared with the reference spectrophotometric method (Bradford) and a good agreement was found (r = 0.967; p < 0.05). In order to investigate a portable system to determinate physical stress, the electrodes were adapted to a batch injection analysis system (BIA) and the current signals of total proteins in saliva were obtained, similar to FIA.

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“…Alguns métodos para a determinação simultânea de PAR, PRO e CAF foram localizados na literatura. Os procedimentos empregados anteriormente para este fim foram a cromatografia líquida de alta eficiência, 2,10,13,14 espectrofotometria UV-Vis, [15][16][17][18] cromatografia capilar eletrocinética micelar, 19 eletrocromatografia planar pressurizada, 20 cromatografia de camada delgada de alto desempenho 20 e voltametria de onda quadrada. 21 O sistema conhecido como análise por injeção em batelada com detecção amperométrica de múltiplos pulsos (BIA-MPA, do inglês "Batch Injection Analysis with Multiple Pulse Amperometric detection") vem sendo usado com sucesso em determinações simultâneas de dois 22,23 ou três 24,25 compostos.…”

Section: Introductionunclassified

Determinação Rápida E Simultânea De Propifenazona, Paracetamol E Cafeína Utilizando Análise Por Injeção Em Batelada Com Detecção Amperométrica

Silva¹,

Silva²,

Muñoz³

et al. 2017

Quim. Nova

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FAST SIMULTANEOUS DETERMINATION OF PROPIFENAZONE, PARACETAMOL AND CAFFEINE USING BATCH INJECTION ANALYSIS WITH AMPEROMETRIC DETECTION. A fast and simple procedure for simultaneous determination of propyphenazone (PRO), paracetamol (PAR) and caffeine (CAF) was performed using batch injection analysis with multiple pulse amperometric detection (BIA-MPA). Three potentials pulses were selected for the analysis: +0.90 V/50 ms: only PAR was oxidized; +1.20 V/50 ms: oxidation of PAR and PRO without the interference of CAF; +1.60 V/50 ms: oxidation of the three compounds (PAR, PRO and CAF). The sample aliquot (150 μL) was directly injected onto the boron-doped diamond (BDD) electrode immersed in a BIA cell. The analytical characteristics of the proposed method include high analytical frequency (75 injections per hour), good stability (RSD < 3.9%; n = 10), and low detection limits (0.3, 0.2 and 0.1 mg L −1 for PRO, PAR and CAF, respectively). The proposed method yielded similar results to those obtained by liquid chromatography at a 95% confidence level.

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Simultaneous determination of paracetamol, caffeine and propyphenazone in ternary mixtures by micellar electrokinetic capillary chromatography

Cited by 71 publications

References 27 publications

Nafion/multi-wall carbon nanotubes composite film coated glassy carbon electrode for sensitive determination of caffeine

Nafion/multi-wall carbon nanotubes composite film coated glassy carbon electrode for sensitive determination of caffeine

Development of a Simple and Fast Electrochemical Method to Evaluate Physical Stress in Athletes

Determinação Rápida E Simultânea De Propifenazona, Paracetamol E Cafeína Utilizando Análise Por Injeção Em Batelada Com Detecção Amperométrica

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