Results 141 to 150 of about 86,276 (266)

High‐Resolution Ion Mobility Approach for Rapid Determination of Multiple Human Milk Oligosaccharide Isomer Ratios

Helvetica Chimica Acta, EarlyView.
ABSTRACT This study presents a high‐throughput ion mobility approach that integrates flow injection analysis (FIA) with multiple stitched high‐resolution ion mobility ranges to enable comprehensive analysis of human milk oligosaccharide (HMO) isomer mixtures in a single acquisition.
Wenqing Xu, Estelle Rathahao‐Paris, Blanche Guillon, François Fenaille, Karine Adel‐Patient, Sandra Alves   +5 more
wiley   +1 more source

Enantioselective Determination of Carnitine Enantiomers in Food and Supplement Samples by Chiral Liquid Chromatography-Tandem Mass Spectrometry. [PDF]

Mass Spectrom (Tokyo)
Furusho A, Nakayama Y, Mizuno H, Sugiyama E, Kojima K, Todoroki K.   +5 more
europepmc   +1 more source

Memory of Chirality in Radical Addition–Translocation–Cyclization Cascades

Helvetica Chimica Acta, EarlyView.
Radical addition–translocation–cyclization cascades of chiral alkynes show striking memory of chirality (MoC), with strong retention of configuration when fast, polarity favored cyclization are involved. The most effective system employs a highly electron‐poor pentafluorobenzenesulfonyl group.
Christian Simon Gloor, Fabrice Dénès, Valentin Soulard, Philippe Renaud   +3 more
wiley   +1 more source

Insights on Stereoselective Residue and Degradation of Spirotetramat Enantiomers on <i>Tubifex</i> of the Qinghai Plateau. [PDF]

Int J Mol Sci
Chen H, Zhang Y, Zheng K, Shen S, Yu S, Li W.   +5 more
europepmc   +1 more source

Distinguishing Terpene Structural Isomers With Dielectric Barrier Discharge Ionization (DBDI)‐Mass Spectrometry

Helvetica Chimica Acta, EarlyView.
DBDI enables real‐time analysis of volatile terpenes and generates atmosphere‐dependent reagent ions that produce structure‐specific spectral patterns. By tuning humidity or dopant gases, DBDI‐MS differentiates terpene isomers that appear identical by EI.
Justine Raeber, Alina Begley, Annina Bovens, Ana Curavić, Christian Steuer   +4 more
wiley   +1 more source

Ensuring enantiomeric consistency in FAPI radiopharmaceuticals: comparative analysis of (S)- and (S/R)-FAPI-46/-74 confirms pharmacological equivalence. [PDF]

EJNMMI Radiopharm Chem
Staniszewska M, Hübner R, Locatelli C, Howard D, Forni M, Man F, Schoultz BW, Nuruddin S, Norberg-Schulz Hagen IS, Mosessian S, Herrmann K, von Kiedrowski V, Lückerath K.   +12 more
europepmc   +1 more source

A personal 360° view of applications of ‘biomimetic’ molecular recognition

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract Molecular recognition between biological molecules has formed the basis for innumerable applications in biotechnology for the last seven decades or so. Techniques such as affinity chromatography, solid‐phase and aqueous two‐phase extraction, affinity precipitation, biomimetic catalytic systems, biosensors and molecular imprinting all exploit ...
Christopher R Lowe
wiley   +1 more source

An Amino-Acid-Derived Metal-Organic Framework with Large Pores for Unspecific Enantioseparation. [PDF]

J Am Chem Soc
Ma X, Wang M, Li W, Qi J, Tu S, Zhang L, Wang KY, Fu Y, Han Z, Wu X, Zhou HC, Zhu C.   +11 more
europepmc   +1 more source

A Density Functional Theory Study of the Structural Preferences of Type B Heteropentalene Mesomeric Betaines and Their Non‐Aromatic Azacyclooctatetraene Isomers

Journal of Heterocyclic Chemistry, EarlyView.
DFT has been used to rationalize the relative stabilities of the Type B heteropentalene mesomeric betaines (HMBs) and their azacyclooctatetraene isomers; the tetraaza and triaza HMBs are generally expected to be thermodynamically more stable than their azacyclooctatetraene isomers, whereas the converse is true for diaza systems.
Jake Bell, Mark T. Sims, Stephen P. Stanforth   +2 more
wiley   +1 more source

PURE ENANTIOMERS [PDF]

Chemical & Engineering News Archive, 1992
openaire   +1 more source