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A Validated HPLC Method for the Determination of GABA by Pre-Column Derivatization with 2,4-Dinitrofluorodinitrobenzene and Its Application to Plant GAD Activity Study

validated, selective, and sensitive chromatographic method for determination of ?-aminobutyric acid (GABA) has been developed by precolumn derivative of the sample with 2,4-dinitrofluorodinitrobenzene (FDNB). The derivatives were separated with RP-HPLC on a C18 column and UV detection (360 nm).

出版机构:Taylor & Francis

刊物名称:Analytical Letters

出版时间:2010

ISSN:0003-2719

数据源:报刊文摘

Determination of polyamines in human urine by precolumn derivatization with benzoyl chloride and high-performance liquid chromatography coupled with Q-time-of-flight mass spectrometry

imple and sensitive HPLC/Q-TOF MS method for simultaneous determination of 1,3-diaminopropane, putrescine, cadaverine, spermidine, spermine and acetyl-spermine in human urine was developed in electrospray-ionization source by positive ion mode.

出版机构:Elsevier Science

刊物名称:Talanta

出版时间:2011

ISSN:0039-9140

数据源:报刊文摘

Liquid chromatographic separation of pregabalin and its possible impurities with fluorescence detection after postcolumn derivatization with o-phtaldialdehyde

pid procedure based on direct extraction and RP-HPLC separation of pregabalin and its possible impurities with fluorescence detection has been developed.

出版机构:Elsevier Science

刊物名称:Journal of Pharmaceutical and Biomedical Analysis

出版时间:2010

ISSN:0731-7085

数据源:报刊文摘

Development and validation of a GC method for quantitative determination of enantiomeric purity of a proline derivative

Enantioselective HPLC, SFC and GC methods were evaluated for separation and quantitative determination of chiral purity of (2R,4R)-1-(1-tert-butoxyvinyl)-4-methoxypyrrolidine-2-carboxylic acid [(2R,4R)-TBMPCA], a common building block in organic synthesis.

出版机构:Elsevier Science

刊物名称:Journal of Pharmaceutical and Biomedical Analysis

出版时间:2010

ISSN:0731-7085

数据源:报刊文摘

Determination of R-(+)-higenamine enantiomer in Nelumbo nucifera by high-performance liquid chromatography with a fluorescent chiral tagging reagent

ensitive method for determination of higenamine enantiomers based on a derivatization reaction with a fluorescent chiral tagging reagent, R-(?)/S-(+)-4-(3-isothiocyanatopyrrolidin-1-yl)-7-(N,N-Dimethylaminosulfonyl)-2,1,3-benzoxadiazole[R-(?)/S-(+)-DBD-PyNCS] has been developed.

出版机构:Elsevier Science

刊物名称:Microchemical Journal

出版时间:2010

ISSN:0026-265X

数据源:报刊文摘

HPLC/DAD Assay of Cyclohexanamine as Related Impurity in Glipizide Through Derivatization with o-Phtaldialdehyde

y of cyclohexanamine as related impurity in glipizide (as active ingredient or in its pharmaceutical formulations) has been achieved through pre-column derivatization with o-phtaldialdehyde (OPA) followed by the HPLC/DAD assay.

出版机构:Taylor & Francis

刊物名称:Analytical Letters

出版时间:2010

ISSN:0003-2719

数据源:报刊文摘

Assay and therapeutic monitoring of fluvoxamine

highly sensitive and reproducible method for assay of fluvoxamine in biological samples using HPLC combined with various detection methods (spectrophotometry and tandem mass spectrometry) was developed.

出版机构:Springer US

刊物名称:Pharmaceutical Chemistry Journal

出版时间:2011

ISSN:0091-150X

数据源:报刊文摘

Improved separation and characterization of lipopolysaccharide related compounds by reverse phase ion pairing-HPLC/electrospray ionization-quadrupole-mass spectrometry (RPIP-HPLC/ESI-Q-MS)

Tributylamine was used as an ion-pair reagent. In the conditions used in this study, tributylammonium then binds to the LPS related compounds through the negatively charged phosphate groups.

出版机构:Elsevier Science

刊物名称:Journal of Chromatography B, Analytical Technologies in the Biomedical and

出版时间:2010

ISSN:1570-0232

数据源:报刊文摘

An improved method for simultaneous analysis of aminothiols in human plasma by high-performance liquid chromatography with fluorescence detection

ltered levels of aminothiols in biological fluids are thought to be an important risk indicator for several diseases, and reliable methods for the accurate determination of aminothiols concentrations in plasma are thus required.

出版机构:Elsevier Science

刊物名称:Journal of Chromatography A

出版时间:2010

ISSN:0021-9673

数据源:报刊文摘

Quantification of nortriptyline in plasma by HPLC and fluorescence detection

imple, sensitive and specific high-performance liquid chromatography method has been developed for the determination of nortriptyline (NT) in plasma samples.

出版机构:Elsevier Science

刊物名称:Journal of Chromatography B, Analytical Technologies in the Biomedical and

出版时间:2010

ISSN:1570-0232

数据源:报刊文摘