Results 241 to 250 of about 740,585 (289)

Design and Utilization of Stable Hydrofluoroolefin‐Based Trifluoropropynyl Surrogate for Sonogashira Coupling

Advanced Synthesis &Catalysis, EarlyView.
A novel methodology for the construction of aromatic and heteroaromatic trifluoropropynyl derivatives has been developed. The new protocol is based on a tandem Sonogashira cross‐coupling reaction between a bench‐stable trifluoropropynyl carbinol reagent, generated from the commercially available and inexpensive hydrofluoroolefin‐1234yf gas, and (hetero)
Emma Bodnár, Ferenc Béke, Klára Aradi, Zoltán Novák   +3 more
wiley   +1 more source

Mapping Royal Jelly's Bioactive Profile by Liquid Chromatography Coupled to Trapped Ion Mobility Spectrometry and High-Resolution Mass Spectrometry. [PDF]

J Agric Food Chem
Nastou ES, Preza-Mayo-Kataki DA, Gialouris PP, Maragou NC, Gikas EE, Thomaidis NS.   +5 more
europepmc   +1 more source

Antidiabetic potential of <i>Sapindus trifoliatus</i> fruit ethanolic extract: Gas chromatography-mass spectrometry profiling, molecular docking, and <i>in vitro/in vivo</i> evaluation. [PDF]

J Adv Pharm Technol Res
Rawat S, Dhakad PK, Gilhotra R, Goyal K, Rekha A, Rana M, Mishra R, Thangavelu L, Gupta G.   +8 more
europepmc   +1 more source

Comprehensive review of understanding ancient dietary habits using modern analytical techniques. [PDF]

Food Chem (Oxf)
Ramadan NS, El-Sayed MM, Ramadan HS, Ismail M, Abdelmegeed H, Gaber N, Sakr MM.   +6 more
europepmc   +1 more source

Effects of Particle Size of Dielectric and Operating Time through Nonthermal Plasma on Fuel Characteristics of Refined Fuel from Oily Sludge. [PDF]

ACS Omega
Lin CY, Liao YH, Hsu TH, Fu C.
europepmc   +1 more source

Chemical Composition and Selective Bioactivities of <i>Piper platylobum</i> Sodiro Essential Oil. [PDF]

Plants (Basel)
Jaime-Carvajal J, Pesántez N, Ballesteros J, Morocho V, Malagón O.   +4 more
europepmc   +1 more source

Antioxidant, toxicity, and cytotoxicity activities from dichloromethane root extract and fraction of <i>Rhizophora stylosa</i> Griff. [PDF]

J Adv Pharm Technol Res
Saidi N, Ginting B, Yahya M, Murniana M, Purnama A, Riski CD.   +5 more
europepmc   +1 more source

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Gas Chromatography

Analytical Chemistry, 1998
This review of the fundamental developments in gas chromatography (GC) includes articles published from 1996 and 1997 and an occasional citation prior to 1996. The literature was reviewed principally using CA Selects for Gas Chromatography from Chemical Abstracts Service, and some significant articles from late 1997 may be missing from the review.
G A, Eiceman, H H, Hill, J, Gardea-Torresdey   +2 more
openaire   +3 more sources

Gas chromatography of flavonoids

Journal of Chromatography A, 1973
Abstract The gas chromatography of some trimethylsilyl ethers of flavonoids and glycosides was carried out using the OV series of silicone polymers as liquid phases, and useful correlations between the Kovats retention indices and the substituents in flavonoids in some crude drugs by temperature-programmed gas chromatography were devised.
Toyoshi Katagi, Akiko Horii, Yoshiko Oomura, Hisayo Miyakawa, Tamako Kyu, Yoko Ikeda, Koichiro Isoi, Masami Makita   +7 more
openaire   +2 more sources

Continuous Gas Chromatography

Science, 1967
Continuous gas chromatography has been achieved with a radial-flow chromatographic channel free of packing and formed between two closely spaced (50 to 75 microns) disc surfaces (optically flat and solvent-coated) rotating at one-half or one revolution per second. This technique provides high capacity and immediate response (in a fraction of a second).
M V, Sussman, C C, Huang
openaire   +2 more sources