Fast and Sensitive New High Performance Liquid Chromatography Laser Induced Fluorescence (HPLC-LIF) Method for Quinine. Comparative Study in Soft Drinks

Feás, Xesús; Fente, C.; Cepeda, Alberto

doi:10.1080/10826070903249849

Cited by 9 publications

(7 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…* email: varutmarius@yahoo.com, phone: +4 0761762069 detection limit can be reduced to ppb range as it is the case for quinine [5]. Some research teams reported simultaneous detection of ethacridine and mifepristone in human plasma by HPLC-UV [6].…”

mentioning

confidence: 99%

Method of Determination of Rivanol by Laser Induced Fluoroscence

Palarie¹,

Văruţ²,

Chirigiu³

2019

Rev. Chim.

View full text Add to dashboard Cite

In this paper has been developed a new method for determination of Ethacridine lactate (rivanol) by laser induced fluorescence (LIF). The method has been used in order to avoid the possibility of error induced in determination of aqueous solution of rivanol by spectrophotometric method due to the shift of absorption band to short wavelength with decreasing of the concentration. The new method allows the determination of rivanol at low concentrations, in the range of 1 mM.

show abstract

mentioning

confidence: 99%

Method of Determination of Rivanol by Laser Induced Fluoroscence

Palarie¹,

Văruţ²,

Chirigiu³

2019

Rev. Chim.

View full text Add to dashboard Cite

show abstract

“…Немногочисленные работы посвящены электрохимическим методикам определения хинина в напитках [11,12]. Большинство публикаций посвящено хроматографическим методикам определении хинина [4,7,13,14] при этом наиболее популярными детекторами являются спектрофотометрические [15]. Эти методики обладают высокой чувствительностью определений и достаточно распространены.…”

unclassified

Determination of quinine in soft drinks using the fluorometry method

Nikolaeva¹,

Ivanov²,

Короткова³

2019

АиК

View full text Add to dashboard Cite

Аналитика и контроль. 2019. Т. 23. № 3. in 0.01 M H 2 SO 4. The influence of the related compounds of the food matrix on the fluorimetric determination of quinine was studied. It has been established that the content of such components as sugar and citric acid in the soft drinks does not affect the luminescent signal of quinine. The detection limit of quinine was calculated, which amounted to 0.0019 mg/dm 3. In order to verify the correctness of the fluorimetric method, the results were compared with the spectrophotometric method (maximum absorption of quinine at 347 nm). The results obtained by the two methods were in good agreement, and the detection limit of the fluorimetric method was higher compared to the known works. The proposed technique could be used to control the quality and safety of the soft drinks.

show abstract

“…(U.S. Department of Health and Human Services, 2010;Lester, 1994). High performance separation techniques such a HPLC and CE (CZE, MEKC, CITP) and a variety of detection systems (UV, DAD, LIF, MS) have been reported in the literature for the analysis of QUI in model as well as real (beverages, pharmaceuticals, urine, plasma) matrices (Altria & Simpson, 1988;Buchberger et al, 2010;Feas et al, 2009;Hodel et al, 2009;Horie et al, 2006;Ibrahim et al, 2007;Junior et al, 2009;Marini et al, 2010;Quing & Jing, 2001;Reijenga et al, 1985;Samanidou et al, 2004;Steiner & Hassel, 2005;Tsimachidis et al, 2008;Zaugg & Thorman, 2001;Zhang et al 2007). From among those, the methods in Table 1 have been used for the analysis of QUI in beverages.…”

Section: Introductionmentioning

confidence: 99%

Comparison of column-coupled electrophoresis with liquid chromatography methods in food analysis of quinine

Veizerová

Piešťanský

Maráková

et al. 2012

Acta Facultatis Pharmaceuticae Universitatis Comenianae

View full text Add to dashboard Cite

Comparison of column-coupled electrophoresis with liquid chromatography methods in food analysis of quinine (QUI) is presented in this work. The capillary isotachophoresis (CITP) on-line coupled with capillary zone electrophoresis (CZE) and hyphenated with fibre-based spectrophotometric diode array detection (DAD) was compared with, (i) high performance liquid chromatography (HPLC) method with DAD detection, and (ii) HPLC method with fluorescence detection (FD). These methods were compared through their performance parameters and determined concentrations of QUI in beverages. The concentrations of QUI in two selected bitter drinks determined by the CITP-CZE-DAD method were in a good accordance with the HPLC-DAD and HPLC-FD methods. In addition, the electrophoretic method, as well as the chromatographic methods, was able to separate potential QUI related impurities from the QUI peak. The CITP-CZE-DAD method provided excellent performance parameters that were comparable (precision, accuracy, LOD, robustness) or even better (separation efficiency) than those ones provided by the chromatographic methods. Moreover, the effectivity of the electrophoresis method was higher when considering cost of analysis (equipment, consumption of separation systems), environmental aspects (organic vs. aqueous solvents), online sample pretreatment (CITP preconcentration and sample clean-up suitable also for the more complex matrices). Considering these findings, CITP-CZE-DAD was approved as a routine automatized method for the highly reliable quality food control.

show abstract

Fast and Sensitive New High Performance Liquid Chromatography Laser Induced Fluorescence (HPLC-LIF) Method for Quinine. Comparative Study in Soft Drinks

Cited by 9 publications

References 22 publications

Method of Determination of Rivanol by Laser Induced Fluoroscence

Method of Determination of Rivanol by Laser Induced Fluoroscence

Determination of quinine in soft drinks using the fluorometry method

Comparison of column-coupled electrophoresis with liquid chromatography methods in food analysis of quinine

Contact Info

Product

Resources

About