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Jack Cazes (Ed): Encyclopedia of Chromatography
Springer Science and Business Media LLC - Tập 73 - Trang 419-420 - 2011
Determination of the stability of caseinoglycomacropeptide in a cosmetic lotion by use of capillary zone electrophoresis with a coated capillary
Springer Science and Business Media LLC - - 1999
Gas chromatographic/mass spectrometric determination of mono- and dioctyltinchloride in aqueous solutions and biological samples
Springer Science and Business Media LLC - Tập 26 - Trang 251-254 - 1988
A gas chromatographic/mass spectrometric method is described for the
determination of mono- and dioctyltinchloride (MOTC and DOTC). Quantitative
extraction from aqueous solutions was obtained with diethyl ether at pH=2.
Several derivatization methods were tested. Grignard butylation in closed
systems was most efficient. In the selected ion monitoring mode, the detection
limits were 5 ng/ml for MOT...
High-performance liquid chromatography separation of chlordecone and its metabolites
Springer Science and Business Media LLC - Tập 22 - Trang 165-167 - 1986
High-performance liquid chromatography (HPLC) was used to separate chlordecone
(Kepone), and two of its metabolites, hydrochlordecone and dihydrochlordecone.
Elution of the three peaks occured after the solvent concentration reached 100%
methanol and was maintained at 100% for approximately five minutes. The method
was linear for chlordecone in the concentration range of 10 to 100 μg.
Sensitive and rapid high-performance liquid chromatographic method for simultaneous determination of antidepressants in pharmaceutical formulations
Springer Science and Business Media LLC - - 2002
An easy, rapid, and sensitive high-performance liquid chromatographic (HPLC)
method is proposed for simultaneous determination of five antidepressants
(trazodone, citalopram, fluoxetine, fluvoxamine and clomipramine) and
norfluoxetine, a major metabolite of fluoxetine. Optimum conditions for the
quantitative separation were investigated. The compounds were separated on a
Nova Pack C18 column with ...
The dipole approach in ion-interaction chromatography of zwitterions
Springer Science and Business Media LLC - Tập 54 Số 1 - Trang 38-44 - 2001
The chromatographic behavior of zwitterions in Ion-interaction chromatography
(IIC) is, investigated theoretically for the first time. The modification of the
stationary phase in the presence of Ion-interaction reagent (IIR), and
adsorption competition between test analytes and IIR for inner layer sites are
shown theoretically to change the partition coefficient for zwitterions.
Experimental resul...
Contribution of adsorption to retention data in glass capillary gas chromatography part. I. Polar stationary phases
Springer Science and Business Media LLC - - 1982
Theory of the linearity of retention index with column temperature. Its versatility and importance in gas chromatography
Springer Science and Business Media LLC - Tập 6 - Trang 93-103 - 1973
A linear equation between retention index and column temperature has been
derived. This theory has been verified from a large collection of data, covering
nine solute-solvent polarity combinations and about a dozen stationary liquids.
Gas-solid and liquid-liquid chromatography are also claimed to follow the
retention index temperature linearity. This simple theory constitutes an
important advance ...
Combined chiral crown ether and β-cyclodextrin for the separation ofo-, m-, andp-fluoro-D,L-phenylalanine by capillary gel electrophoresis
Springer Science and Business Media LLC - - 1996
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