Results 51 to 60 of about 348,397 (263)
Determination_of D003 by capillary gas chromatography
D003 is a mixture of saturated very long-chain fatty acids ranging from 24 to 36 carbon atoms, obtained from sugar cane (Saccharum officinarum L.) wax, with antiplatelet, 'antithrombotic, antioxidant and cholesterol-lowering effects .
David Marrero Delange+4 more
doaj
Modeling of gas sample behavior in gas chromatography column [PDF]
The equilibrium-dispersive model of the linear GC (gas chromatography) was derived using both assumptions and the method of its derivation different from the known in literature. It was concluded that this model is a specific case of the Fokker-Planck equation for diffusion with drift.
arxiv
A series of ultraviolet‐ and near‐infrared radiation sensitive photoactivatable hydrogels are developed that can be controlled spatiotemporally down to µm precisions using one‐ and two‐photon uncaging. The latent hydroxylamine‐, hydrazine‐, and amine uncaged moieties are used to photopattern a series of diverse proteins displaying complimentary ...
Tove Kivijärvi+6 more
wiley +1 more source
Comprehensive verification of new method "Ethanol as Internal Standard" for determination of volatile compounds in alcohol products by gas chromatography [PDF]
Recently proposed new method "Ethanol as Internal Standard" for determination of volatile compounds in alcohol products by gas chromatography is investigated from different sides. Results of experimental study from three different laboratories from Belarus and Russian Federation are presented.
arxiv
A stable cross‐linked ultra‐thin polymer coating for surface‐initiated ring‐opening polymerization (SI‐ROP) of hexamethylcyclotrisiloxane and ε‐caprolactone for growth of high grafting density poly(dimethyl siloxane) and poly(caprolactone) brushes is developed.
Miguel Betancourt‐Ponce+3 more
wiley +1 more source
The identification and analysis of chemical warfare agents and their degradation products is one of important component for the implementation of the convention.
Harry Budiman
doaj +1 more source
Evolution through time of Pyrrolizidine Alkaloids detection and quantification [PDF]
Pyrrolizidine Alkaloids (PAs) are a group of naturally occurring alkaloids that are produced by plants as a defense mechanism against insect herbivores. The analytical methodologies employed for their detection have come a long way since the first analytical experiment and in the last 30 years had an enormous development, both technological and ...
arxiv
Polar Pore Surface of Polyamide Membranes Enabling Efficient Solvent Mixture Separation
A polyamide membrane with polar pore surfaces and relatively large pore is fabricated through interfacial polymerization between polyethyleneimine and trimesoyl chloride. Rapid separation of solvents with polarity differences is achieved by the synergistic effects of pore polarity and size sieving.
Aiwen Zhang+10 more
wiley +1 more source
Peak Alignment of Gas Chromatography-Mass Spectrometry Data with Deep Learning [PDF]
We present ChromAlignNet, a deep learning model for alignment of peaks in Gas Chromatography-Mass Spectrometry (GC-MS) data. In GC-MS data, a compound's retention time (RT) may not stay fixed across multiple chromatograms. To use GC-MS data for biomarker discovery requires alignment of identical analyte's RT from different samples.
arxiv
Novel conjugated polymers with side‐chain π‐conjugation are developed to enhance organic thermoelectric properties. Remarkably, the pendant doping in the conjugated polymers preserved strong intermolecular ordering in the film states even at high FeCl3 dopant concentrations (16 – 32 mM), achieving a promising power factor > 10 µW m−1 K−2 across a wide ...
Hyeokjun Kim+4 more
wiley +1 more source