Cyclodextrins in Analytical Chemistry

Mosinger, Jiří; Tománková, V.; Němcová, I.; Zýka, J.

doi:10.1081/al-100106834

Cited by 73 publications

(29 citation statements)

References 147 publications

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“…Several reviews have discussed the spectroscopic effects of CDs and how these can be applied in analytical chemistry [6,7]. Under deoxygenated solvent conditions, CDs can enhance the room temperature phosphorescence (RTP) of various compounds such as 6-bromo-2-naphthol derivatives [8][9][10][11], polynuclear aromatic hydrocarbons [12,13], or acid-base indicators such as neutral red [14].…”

Section: Introductionmentioning

confidence: 99%

Enantioselective detection of chiral phosphorescent analytes in cyclodextrin complexes

García-Ruiz

Scholtes

Ariese

et al. 2005

Talanta

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Inclusion complexes between camphorquinone (CQ) and cyclodextrins (CDs) in deoxygenated aqueous solutions are shown to exhibit relatively strong room temperature phosphorescence (RTP). Among the various CDs tested, ␣-CD showed the strongest RTP signals. Interestingly, these signals differed significantly for the two enantiomers of CQ; the phosphorescence lifetime of (+)-CQ was about four times longer than that of (−)-CQ, being 352 ± 16 and 89 ± 6 s, respectively. This enantiomeric selectivity is attributed to a difference in dissociation rates (competing with the radiative emission process) for the diastereoisomeric inclusion complexes dealt with, which have a 2:1 stoichiometry (␣-CD:CQ:␣-CD). Time-resolved RTP detection using different delay times enables the determination of the two enantiomers in a mixture without involving a separation technique. The minimum detectable fraction of (+)-CQ in a 2 mM sample was 13%.

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Section: Introductionmentioning

confidence: 99%

Enantioselective detection of chiral phosphorescent analytes in cyclodextrin complexes

García-Ruiz

Scholtes

Ariese

et al. 2005

Talanta

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“…On RP, an inclusion complex is formed between the hydrophobic part of the analyte and the relatively nonpolar interior of the CD cavity. However, in some LC separations with polar-organic phases, inclusion complexation is not involved; instead the analyte interacts with secondary hydroxyl groups on the outer rim of the CD [79,109].…”

Section: Chiral Supramolecular-assisted Gc-msmentioning

confidence: 99%

“…CD-based GC has been applied to many fields of enantiomeric analysis [70,[76][77][78][79] including essential oils, flavors, and fragrants [70,80], ingredients in alcoholic beverages [81,82], clinical chemistry [83], terpenoids [84], pheromones [85], enzymatic reactions [86], organochlorine pesticides [87][88][89][90], atmospheric alkyl nitrates [91], and volatile pharmaceutical compounds [92,93].…”

Section: Supramolecular-assisted Gc Techniquesmentioning

confidence: 99%

Supramolecular systems‐based extraction‐separation techniques coupled to mass spectrometry

Merino

Rubio

Pérez‐Bendito³

2005

J of Separation Science

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The combination of supramolecular chemistry and MS has not only been fruitful in the field of gas-phase fundamental studies of host-guest complexes and supramolecular assemblies. Mass spectrometric analysis has also benefited from the ability of supramolecular systems to behave as pseudophases in which solutes partition from the bulk solvent phase. Supramolecular systems-based extraction and concentration schemes and separation techniques have been widely used in different fields of analytical chemistry and are ideally suited for coupling with MS. This review describes the present status of the application of supramolecular chemistry in mass spectrometric analysis and includes topics such as the use of coacervative liquid-liquid extraction and hemimicelle/admicelle-based SPE of organic compounds prior to chromatography and electrophoresis. It also discusses the recent advances in enantioselective analysis using CD in electrophoresis- and chromatography-MS. The potential and analytical challenges of these approaches in environmental and bioanalytical chemistry, where one can expect significant developments in the future, are outlined.

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“…The most common CDs are ␣-cyclodextrin, ␤-cyclodextrin, and ␥-cyclodextrin which consist of six, seven, and eight glucopyranoside units, respectively. Cyclodextrins and their derivatives find a number of applications in the pharmaceutical, cosmetic, and food industries for encapsulation of hydrophobic or volatile actives, in analytical chemistry as separating agents, and in catalysis [12][13][14][15][16][17]. Because of the hydrophobic nature of the cavity of the CD molecules, the water-insoluble "tail" of a surfactant molecule may partition inside this cavity compared to the aqueous media.…”

Section: Introductionmentioning

confidence: 99%

Self-assembly control via molecular recognition: Effect of cyclodextrins on surfactant micelle structure and interactions determined by SANS

Fajalia

Tsianou

2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Cyclodextrins in Analytical Chemistry

Cited by 73 publications

References 147 publications

Enantioselective detection of chiral phosphorescent analytes in cyclodextrin complexes

Enantioselective detection of chiral phosphorescent analytes in cyclodextrin complexes

Supramolecular systems‐based extraction‐separation techniques coupled to mass spectrometry

Self-assembly control via molecular recognition: Effect of cyclodextrins on surfactant micelle structure and interactions determined by SANS

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