2004
DOI: 10.1016/j.chroma.2004.02.038
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Analysis of iso-α-acids and reduced iso-α-acids in beer by direct injection and liquid chromatography with ultraviolet absorbance detection or with mass spectrometry

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Cited by 50 publications
(36 citation statements)
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“…The HPLC analysis was performed according to Vanhoenacker et al (2004) on an apparatus consisting of a degasser mod. G1322A, a binary pump mod.…”
Section: Detection Of α-Acids Iso-α-acids and Reduced Iso-α-acidsmentioning
confidence: 99%
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“…The HPLC analysis was performed according to Vanhoenacker et al (2004) on an apparatus consisting of a degasser mod. G1322A, a binary pump mod.…”
Section: Detection Of α-Acids Iso-α-acids and Reduced Iso-α-acidsmentioning
confidence: 99%
“…Tetrahydroiso--acids also exist as cis and trans isomeric pairs, totalling six stereoisomers. Reduction of iso--acids to dihydroiso--acids introduces an additional chiral centre, leading to twelve stereomeric members of dihydroiso--acids (Vanhoenacker, De Keukeleire, & Sandra, 2004).…”
mentioning
confidence: 99%
“…Their structures have been verified by elemental analysis 23,24 , 1 H and 13 C NMR 17,23,24 , chiroptical methods 23,24 , GC-MS 16,24 , MS 9,11,21 , UV 4,11,23 and HPLC 2,5,8,9,21,23 . The preparation of pure iso-␣-acid from hop-derived extracts has also been described by Hughes 12 .…”
Section: Introductionmentioning
confidence: 99%
“…In the past, the application of an acidic mobile phase, gradient elution and UV detection was a common approach for the separation of iso-␣-acids 23 . However, it has been recently shown 10,21 that neutral and alkaline mobile phases, in combination with advanced reversed-phase sorbents, can provide much better selectivity for iso-␣-acids. Baseline separation is attainable especially when isocratic elution is utilized 9 .…”
Section: Introductionmentioning
confidence: 99%
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