Coulometric array detection

NURMI T, ADLERCREUTZ H (1999) Sensitive HPEC method for profiling phytoestrogens using coulometric array detection application to plasma analysis, Analytical Biochemistry, 274, 110-17. 

GUO c, CAO G, SOFIC E and PRIOR R L (1997) High-performance liquid Chromatography coupled with coulometric array detection of electroactive components in fruits and vegetables Relationship to oxygen radical absorbance capacity, J Agric Food Chem, 45, 1787-96. 

Ferruzzi, M.G. et ah. Analysis of lycopene geometrical isomers in biological microsamples by liquid chromatography with coulometric array detection, J. Chromatogr. B Biomed. ScL Appl. 760, 289, 2001. 

Inoue, K., Murayama, S., Seshimo, F., Takeba, K., Yoshimura, Y., and Nakazawa, H. (2005). Identification of phenolic compound in manuka honey as specific superoxide anion radical scavenger using electron spin resonance (ESR) and liquid chromatography with coulometric array detection. /. Sci. Food Agric. 85, 872-878. 

Aaby K, Hvattum E and Skrede G. 2004. Analysis of flavonoids and other phenolic compounds using high-performance liquid chromatography with coulometric array detection relationship to antioxidant... 

Floridi S, Montanari L, Marconi O and Fantozzi P. 2003. Determination of free phenolic acids in wort and beer by coulometric array detection. J Agric Food Chem 51(6) 1548—1554. 

P Gamache, E Ryan, IN Acworth. Analysis of phenolic and flavonoid compounds in juice beverages using high-performance liquid chromatography with coulometric array detection. J Chromatogr 635 143-150, 1993. 

PH Gamache, IN Acworth, ML Lynch, WR Matson. Coulometric array detection for HPLC in the analysis of juice products. In S Nagy, RL Wade, eds. Methods to Detect Adulteration of Fruit Juice Beverages. Auburndale, FL Agscience, 1995, pp 120-144. 

Gamache, P. H., Kingery, M. L., and Acworth, I. N. (1993). Urinary metanephrine and norme-tanephrine determined without extraction by using hquid chromatography and coulometric array detection. Clin. Chem. 39 1825-1830. 

The coulometric array detection mimics the diode array detector if two peaks are eluted together, they can be electrochemically and spectrophotometrically resolved and quantified. While a diode array detector relies on the different UV-Vis spectra of various compounds and characterizes analytes on the basis of their retention times and spectroscopic features, the coulometric array detector takes advantage of the variability of the voltammograms for diverse analytes and typifies them based on retention time and reaction potential. 

Vaarmann A, Kask A, Maeorg U. Novel and sensitive high-performance liquid chromatographic method based on electrochemical coulometric array detection for simultaneous determination of catecholamines, kynurenine and indole derivatives of tryptophan. J Chromatogr B Analyt Technol Biomed Life Sci 2002 769 145-53. 

Lee, M. J., Prabhu, S., Meng, X. F., Li, C., and Yang, C. S. 2000. An unproved method for the determination of green and black tea polyphenols in biomatrices by high-performance liquid chromatography with coulometric array detection. Anal. Biochem. 279 164-69. 

Du, Y.G., Li, S.G., and Guo, H.L. 2003. Differential display of plant internal secretion by high performance liquid chromatography-coulometric array detection. Chin. J. Chromatogr. 21 507-509. 

Multichannel electrochemical coulometric detection or coulometric array detection has been developed so that different potentials are applied on the electrodes. A number of chromatograms (8, 12, or 16) can be recorded simultaneously. Flavonoids can have several oxidation processes across the array of potentials, giving characteristic profiles for identification. Methods were developed for the... 

HPLC with coulometric-array detection has been successfully used for the analysis of phenolic compounds in meads [119], natural beverages and plant extracts [117,120], juice beverages [121], beers [118, 122, 123], and wines [124]. 

Cullison, J.K. and Gamache, P.H. (1997) Qualitative, utility of coulometric array detection theoretical and applied aspects, in Coulometric Electrode Array Detectors in HPLC, Progress in HPLC-HPCE, vol. 6 (eds I.N. Acworth, M. Naoi, H. Parvez and S. Parvez), VSP, Zeist. 

Gamache, P.H. and Acworth, I.N., Analysis of ph3doestrogens and polyphenols in plasma, tissue, and urine using HPLC with coulometric array detection, Proc. Soc. Exp. Biol. Med., 217, 274-280, 1998. 

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