Fast Analysis of Taurine in Energetic Drinks by Electrospray Ionization Mass Spectrometry

Abstract

Espectrometria de massas sequencial usando infusão direta de amostra e ionização por electrospray no modo de ions negativos foi utilizada para quantificar taurina em bebidas energéticas com alta seletividade e sensibilidade, O metodo é simples e rápido (menos de 2 min de corrida) e apresenta alta repetitividade e recuperação. Bebidas energéticas comerciais apresentaram quantidades de taurina em concentrações muito diferentes (menor ou maior) das quantidades declaradas.Direct infusion electrospray ionization tandem mass spectrometry in the negative ion mode with single reaction monitoring is show to allow high selectivity and sensitivity in the quantification of taurine in energetic drinks. The method is also simple and rapid (less than 2 min run time), with high recovery and repeatability. Commercially available energetic drinks were found to contain taurine in concentrations quite different (lower or higher) from the declared amounts.

Development of a method for simultaneous analysis of caffeine and taurine in energy drinks by micellar electrokinetic chromatography with diode-array detector

“…Taurine is a free amino acid which plays a fundamental role in the human body by absorbing fats, protecting the heart and acting as an antioxidant (Alzawqari et al, 2016;Catharino et al, 2011;Giles et al, 2012;Goron & Moinard, 2018;Heidari et al, 2016;Mele et al, 2019;Pansani et al, 2012;Pereira et al, 2012;Rai et al, 2016;Wen et al, 2019). Regarding toxicity, it is generally well accepted by the body, without any adverse physiological effects.…”

Analytical Approaches and Methods in Quality Control Procedures of Energy Food Drinks Containing Caffeine and Taurine

“…Electrospray Ionization Mass Spectrometry [12], Thin-layer chromatography (TLC) [18], Liquid chromatography-mass spectrometry [19].…”

“…Energy Food Drinks Containing Caffeine and Taurine [12] After the homogenization, the solutions were first filtrated two times with a common filter paper and next with a Durapore membrane (Millipore) with 0.45 µm size pores.The samples were automated injected into the ESI source of the mass spectrometer (10 µL) by using a HPLC system. The best mode of ion detection for taurine was the negative ion mode.…”

Clustering of simple aminosulfonic acids – electrospray ionization mass spectrometric study

“…Although there is a vast literature devoted to the ESI‐MS study of amino acid aggregation, we found only one report concerning such a study for aminosulfonic acids. ESI‐MS studies on taurine in energetic drinks was performed; however, its aggregation was not studied in detail …”

“…ESI-MS studies on taurine in energetic drinks was performed; however, its aggregation was not studied in detail. [25] The aim of the present work was the study of the aggregation of small ω-aminosulfonic acids, namely, aminomethanesulfonic acid (AMS), taurine (Tau), homotaurine (HT) and cysteic acid (CA) (for structures, see Scheme 1). Sulfamic acid, H 2 NSO 2 OH, is the subject of a separate study (manuscript in preparation).…”