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Ultraperformance liquid chromatography UPLC

Bolechova, Caslavsky, Pospichalova, and Kosubova report a protocol for the extraction of selected pyrrolizidine alkaloids (PAs) in feed. They determined PAs using an ultraperformance liquid chromatography (UPLC) system coupled to a tandem mass spectrometry equipped with an electrospray interface (ESI). Their steps to extract alkaloids for this determination are as follows ... [Pg.443]

More bioactive iridoids of Cornus mas fruits were later isolated and identified using ultraperformance liquid chromatography (UPLC) coupled with PDA and ESI-TOF-MS. [Pg.175]

Stage that requires high efficiency as well as speed, due to the complexity of the sample matrix, and hence it is particularly challenging to achieve the goals. Therefore, the development of a rapid, sensitive, and reproducible method has been required for separation and determination of capsaicinoid compounds. The addition of ultraperformance liquid chromatography-mass spectrometry (UPLC-MS) method fulfilled these aforementioned demands and showed some complementary advantages to the conventional HPLC-MS, u-HPLC methods in terms of shorter analysis times, low sample volume, and much improved sensitivity [71]. Therefore, nowadays this UPLC-MS technique is routinely performed in pharmaceutical industries and related contract research institutes, laboratories concerned with biochemistry, biotechnology, environmental analysis, natural product research, and several other research fields. The UPLC-MS method has successfully been applied for the determination of n-DHC, C, DHC, h-C, and h-DHC present in the varieties of hot peppers [71]. [Pg.97]

With the development of sensitive LC/MS methods, it has been possible to differentiate and make comparative studies as demonstrated in a study with Jamaica quassia (Quassia excels) and quassia extract (P. quassioides) whereby the main constituents isolated were quassin and two isomers of neoquassin however, there was a difference in the minor components. This finding is of significance to evaluate the quality and suitability of the extracts when used as food additives. An ultraperformance liquid chromatography-time-of-flight mass spectrometiy (UPLC-TOFMS) protocol for multiresidue determination of the sum of quassin and neoquassin in strawberry has been developed [107]. [Pg.3360]

FAo formic acid, SPE solid-phase extraction, MIPs molecular imprinted polymers, RP-HPLC reverse-phase high-perf mance liquid chromatograjAty, RP-UPLC reveree-i ase ultraperformance liquid chromatography, AcN acetonitrile, MeOH methanol, ESI electrospray, QqQ triple quadrupole, QqLIT quadrupole-linear ion trap, SRM selective-reactum monitorii mode, Rec Analyte recovery, LOD limit of detection. [Pg.119]

Acronyms BHT = butylated hydroxytoluene FL = fluorescence detection HILIC = hydrophilic-interaction LC IDMS = isotope-dilution mass spectrometry IS = internal standard MSPD = matrix solid-phase dispersion QqQ = triple quadrupole SRM = standard reference material TCA = trichloroacetic acid TEA = trifluoroacetic acid UPLC = ultraperformance liquid chromatography. [Pg.509]

See other pages where Ultraperformance liquid chromatography UPLC is mentioned: [Pg.142]    [Pg.115]    [Pg.415]    [Pg.34]    [Pg.192]    [Pg.175]    [Pg.134]    [Pg.242]    [Pg.256]    [Pg.145]    [Pg.337]    [Pg.163]    [Pg.672]    [Pg.534]    [Pg.785]    [Pg.1023]    [Pg.142]    [Pg.115]    [Pg.415]    [Pg.34]    [Pg.192]    [Pg.175]    [Pg.134]    [Pg.242]    [Pg.256]    [Pg.145]    [Pg.337]    [Pg.163]    [Pg.672]    [Pg.534]    [Pg.785]    [Pg.1023]    [Pg.160]    [Pg.313]    [Pg.254]    [Pg.250]    [Pg.12]    [Pg.424]    [Pg.504]    [Pg.532]    [Pg.175]    [Pg.252]   
See also in sourсe #XX -- [ Pg.115 , Pg.415 , Pg.418 ]

See also in sourсe #XX -- [ Pg.34 , Pg.35 , Pg.153 ]



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