Results 61 to 70 of about 334,028 (308)
Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2018 The aim of this work was to compare sensitivity of methods for determination of methanol and propanol-2 contents in tinctures and extracts. Materials and methods.
T. V. Panasenko +3 more
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THE SEPARATION OF SATURATED AND UNSATURATED FATTY ACID ESTERS BY GAS–LIQUID CHROMATOGRAPHY [PDF]
, 1958 Béatrice Craig, N.L. Murty
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Advanced Functional Materials, EarlyView.Internally catalyzed siloxane dynamic chemistry is demonstrated resulting from amides covalently linked through alkyl chains to siloxanes. The alkyl length in the siloxane‐containing monomer tunes the network cross‐link density. Siloxane exchange dynamics are faster with increasing cross‐link density, because associative exchange is second order in ...
Nathan S. Purwanto +5 more
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Simultaneous Determination of 20 Pyrazines in Baijiu by Gas Chromatography-Tandem Mass Spectrometry [PDF]
Shipin KexueIn this study, a method for the simultaneous determination of 20 pyrazines in baijiu was established by direct injection (DI) combined with gas chromatography-tandem mass spectrometry (GC-MS/MS), and the pyrazines in 10 brands of baijiu with different ...
WANG Na, SHEN Yi, ZHUANG Yuan, CHENG Wei, LUO Sen, ZHANG Yadong, LIU Zixuan, LIU Bing, GAO Hongbo
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Analysis by Gas Chromatography of a ‘Pure’ Sample with an ‘Impure’ Carrier [PDF]
, 1959 V. WILLIS
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Advanced Functional Materials, EarlyView.A suspension of metal‐organic nanosheets was centrifuged to form self‐healing gels with a hierarchically porous structure. The prepared gels were used to selectively capture small molecules from solutions and differentially release them based on their size and charge. Abstract Metal‐organic nanosheets (MONs) are intrinsically porous 2D materials with a
Jiangtian Tan, Jonathan A. Foster
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Analytical methods used to determine pesticide residues in tea: A systematic review
Applied Food Research, 2022 Tea is a worldwide consumed beverage that is known for its variety of flavors and aroma, in addition to its antioxidant, antimicrobial, anti-carcinogenic, and anti-inflammatory properties.
Areej Merhi +3 more
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Advanced Functional Materials, EarlyView.For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin +7 more
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Separation of organochlorsilanes by preparative gas chromatography
Тонкие химические технологии, 2013 The preparative gas chromatography method has been used for isolation and analysis of the organochlorsilanes isomers. The reaction of the organochlorsilanes with vapour of the water in the air has been studied.
G. N. Turkeltaub, E. A. Chernyshev
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Gas–liquid partition chromatography: the separation and micro-estimation of volatile fatty acids from formic acid to dodecanoic acid [PDF]
, 1955 J. H. Van De Kamer +2 more
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