569550

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HPLC-SPE-NMR hyphenation in natural products research: optimization of analysis of Croton membranaceus extract.

Maja Lambert et al.

Magnetic resonance in chemistry : MRC, 43(9), 771-775 (2005-07-29)

The HPLC-SPE-NMR technique was used for the analysis of a root-bark extract of Croton membranaceus. The components of the extract were separated on an analytical-size reversed-phase HPLC column, the chromatographic peaks were trapped on SPE (solid-phase extraction) cartridges after post-column

Syntheses, structures, and (1)H, (13)C{(1)H} and (119)Sn{(1)H} NMR chemical shifts of a family of trimethyltin alkoxide, amide, halide and cyclopentadienyl compounds.

Alejandro G Lichtscheidl et al.

Dalton transactions (Cambridge, England : 2003), 44(36), 16156-16163 (2015-08-22)

The synthesis and full characterization, including Nuclear Magnetic Resonance (NMR) data ((1)H, (13)C{(1)H} and (119)Sn{(1)H}), for a series of Me3SnX (X = O-2,6-(t)Bu2C6H3 (), (Me3Sn)N(2,6-(i)Pr2C6H3) (), NH-2,4,6-(t)Bu3C6H2 (), N(SiMe3)2 (), NEt2, C5Me5 (), Cl, Br, I, and SnMe3) compounds in

Development of a purity control strategy for pemetrexed disodium and validation of associated analytical methodology.

Anne Warner et al.

Journal of pharmaceutical and biomedical analysis, 105, 46-54 (2014-12-22)

Stability-indicating reversed phase HPLC methods have been developed and validated for the determination of 13 potential process and degradation impurities in pemetrexed disodium drug substance (DS) and pemetrexed for injection drug product (DP). This paper describes the development of HPLC-UV

Proton polarizability caused by collective proton motion in intramolecular chains formed by two and three hydrogen bonds. Implications for charge conduction in bacteriorhodopsin.

Brzezinski B, et al.

The Journal of Physical Chemistry, 91(11), 3077-3080 (1987)

Acetonitrile-d₃ as a probe of Lewis and Broensted acidity of zeolites.

Pelmenschikov AG, et al.

The Journal of Physical Chemistry, 97(42), 11071-11074 (1993)

Dynamics of a wetting liquid in nanopores: An optical Kerr effect study of the dynamics of acetonitrile confined in sol-gel glasses.

Loughnane BJ, et al.

J. Chem. Phys. , 111(11), 5116-5123 (1999)

Organic deuterium compounds: XVI. Synthesis of α-deuterated alkyl nitriles.

Leitch LC.

Canadian Journal of Chemistry, 35(4), 345-347 (1957)

Pressure dependencies of rotational, translational, and viscous friction coefficients in water-d₂, acetonitrile-d₃, acetonitrile, chloroform, and benzene.

Wakai C and Nakahara M.

J. Chem. Phys. , 100(11), 8347-8358 (1994)

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