Zobrazeno 1 - 10
of 38
pro vyhledávání: '"John R. Kalman"'
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
‘Pollination syndromes’ involving floral nectar have eluded satisfactory evolutionary explanation. For example, floral nectars for vertebrate-pollinated plants average low sugar concentrations, while such animals prefer high concentrations, perpl
Publikováno v:
Rapid Communications in Mass Spectrometry. 28:1609-1620
RATIONALE Pyridinium chlorochromate (PCC) is the active ingredient of 'Urine Luck', a commercially available in vitro adulterating agent used to conceal the presence of drugs in a urine specimen. The exposure of codeine and its major glucuronide meta
Publikováno v:
Forensic Science International. 207:223-238
Four novel alkyl 2-cyanoacrylate monomers (alkyl = 1-cyanoethyl, 2-cyanoethyl, trideuteromethyl and pentadeuteroethyl) have been tested for their ability to develop latent fingermarks that can then be visualized using mid-infrared spectral (chemical)
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 49:257-277
Four novel cyanoacrylates, 2-cyanoethyl 2-cyanoacrylate, 1-cyanoethyl 2-cyanoacrylate, trideuteromethyl 2-cyanoacrylate and pentadeuteroethyl 2-cyanoacrylate have been synthesized using a Diels-Alder protection/deprotection route involving anthracene
Publikováno v:
Scopus-Elsevier
The use of a new technique, Fourier transform infrared (FTIR) chemical imaging, has been demonstrated for the enhancement of latent fingermarks on a number of surfaces. Images of untreated fingermarks on glass backgrounds with excellent ridge detail
Publikováno v:
Analytica Chimica Acta. 509:127-135
Interferences affecting the determination of butyltin species by sodium tetraethylborate (STEB) derivatisation followed by purge–trap preconcentration were systematically studied using synthetic solutions, natural water samples and sediment extract
Publikováno v:
Fuel. 81:5-14
Materials which pack in the form of small rod shapes are of technological interest since they can exhibit considerable strength. In the past decade, we have seen an enormous level of activity in nanostructured materials, fuelled in particular by carb
Publikováno v:
Carbon. 39:137-144
The heterogeneity of the web by changing the ratio of cobalt to graphitic carbon in the reaction mixture is investigated. The various webs were studied by electron microscopy and micro-Raman spectroscopy. It is shown that structures in the web have v
Publikováno v:
Journal of Chromatography A. 870:45-51
This paper describes the testing of a saturated factorial design using a full factorial design. Saturated factorial designs are often used to test the robustness of high-performance liquid chromatography (HPLC) methods, however they are based on seve
Publikováno v:
Tetrahedron. 55:3615-3624
Methyl-silicon bond cleavage of tetramethylsilane occurs with aryllead(IV) tricarboxylates in trifluoroacetic acid to produce aryl(methyl)lead(IV) bistrifluoroacetates in high yield. An extension of the study to tetraalkylstannanes has shown that alk