UB Paderborn / Katalog / Suche / in CDI

Use of liquid chromatography–mass spectrometry and a hydrolytic technique for the detection and structure elucidation of a novel synthetic vardenafil designer drug added illegally to a “natural” herbal dietary supplement

Journal of Chromatography A, 2006-08, Vol.1125 (1), p.67-75

2006

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Direct intramolecular gas-phase transfer reactions during fragmentation of sildenafil and thiosildenafil analogs in electrospray ionization mass spectrometry

Rapid communications in mass spectrometry, 2009-03, Vol.23 (6), p.927-936

Reepmeyer, John C.

2009

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Analysis of heparin sodium by SAX/HPLC for contaminants and impurities

Journal of pharmaceutical and biomedical analysis, 2009-04, Vol.49 (3), p.670-673

2009

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Inhibition of Taq polymerase as a method for screening heparin for oversulfated contaminants

Biomaterials, 2008-12, Vol.29 (36), p.4808-4814

2008

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Use of liquid chromatography–mass spectrometry and a chemical cleavage reaction for the structure elucidation of a new sildenafil analogue detected as an adulterant in an herbal dietary supplement

Journal of pharmaceutical and biomedical analysis, 2007-08, Vol.44 (4), p.887-893

2007

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Structure elucidation of thioketone analogues of sildenafil detected as adulterants in herbal aphrodisiacs

Journal of pharmaceutical and biomedical analysis, 2009-01, Vol.49 (1), p.145-150

2009

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Detection of undeclared erectile dysfunction drugs and analogues in dietary supplements by ion mobility spectrometry

Journal of pharmaceutical and biomedical analysis, 2009-04, Vol.49 (3), p.601-606

2009

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Analysis of crude heparin by (1)H NMR, capillary electrophoresis, and strong-anion-exchange-HPLC for contamination by over sulfated chondroitin sulfate

Journal of pharmaceutical and biomedical analysis, 2010-03, Vol.51 (4), p.921-926

2010

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Structure elucidation of a novel analogue of sildenafil detected as an adulterant in an herbal dietary supplement

Journal of pharmaceutical and biomedical analysis, 2007-04, Vol.43 (5), p.1615-1621

2007

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Stability of the nitrogen mustard mechlorethamine in novel formulations for dermatological use

International journal of pharmaceutics, 2008-10, Vol.362 (1), p.67-73

2008

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Screening of Heparin API by Near Infrared Reflectance and Raman Spectroscopy

Journal of pharmaceutical sciences, 2009-10, Vol.98 (10), p.3540-3547

2009

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Analysis of the nitrogen mustard mechlorethamine in topical pharmaceutical preparations by high-performance liquid chromatography

Journal of Chromatography A, 2005-09, Vol.1085 (2), p.262-269

Reepmeyer, John C.

2005

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Use of a hydrolytic procedure and spectrometric methods in the structure elucidation of a thiocarbonyl analogue of sildenafil detected as an adulterant in an over-the-counter herbal aphrodisiac

Journal of AOAC International, 2009-09, Vol.92 (5), p.1336

2009

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Modifications and insights into a method for the analysis of the nitrogen mustard mechlorethamine by high-performance liquid chromatography

Analytica chimica acta, 2008-05, Vol.616 (1), p.78-84

2008

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Separation and detection of the isomeric equine conjugated estrogens, equilin sulfate and Δ8,9-dehydroestrone sulfate, by liquid chromatography-electrospray-mass spectrometry using carbon-coated zirconia and porous graphitic carbon stationary phases

Journal of Chromatography A, 2005-08, Vol.1083 (1-2), p.42-51

2005

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Liquid chromatographic determination of thalidomide in tablets, capsules, and raw materials

Journal of AOAC International, 1997-07, Vol.80 (4), p.767

1997

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SCREENING FOR CORTICOSTEROIDS IN TOPICAL PHARMACEUTICALS BY HPLC WITH A SCANNING ULTRAVIOLET DETECTOR

Journal of liquid chromatography & related technologies, 2001-01, Vol.24 (5), p.693-709

Reepmeyer, John C.

2001

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In vitro study of nicotine release from smokeless tobacco

Journal of AOAC International, 1998-05, Vol.81 (3), p.540

1998

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Separation and detection of the isomeric equine conjugated estrogens, equilin sulfate and delta8,9-dehydroestrone sulfate, by liquid chromatography--electrospray-mass spectrometry using carbon-coated zirconia and porous graphitic carbon stationary phases

Journal of chromatography. A, 2005-08, Vol.1083 (1-2), p.42-51

2005

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Analysis of crude heparin by 1H NMR, capillary electrophoresis, and strong-anion-exchange-HPLC for contamination by over sulfated chondroitin sulfate

Journal of pharmaceutical and biomedical analysis, 2010-03, Vol.51 (4), p.921-926

2010

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Analysis of crude heparin by 1 H NMR, capillary electrophoresis, and strong-anion-exchange-HPLC for contamination by over sulfated chondroitin sulfate

Journal of pharmaceutical and biomedical analysis, 2010, Vol.51 (4), p.921-926

2010

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Separation and detection of the isomeric equine conjugated estrogens, equilin sulfate and Δ 8,9-dehydroestrone sulfate, by liquid chromatography–electrospray-mass spectrometry using carbon-coated zirconia and porous graphitic carbon stationary phases

Journal of Chromatography A, 2005, Vol.1083 (1), p.42-51

2005

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Separation of R- and S-Thalidomide by Reversed-Phase HPLC with β-cyclodextrin in the mobile phase

Chirality (New York, N.Y.), 1996, Vol.8 (1), p.11-17

Reepmeyer, John C.

1996

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Detection of clobetasol propionate as an undeclared steroid in zinc pyrithione formulations by high-performance liquid chromatography with rapid-scanning ultraviolet spectroscopy and mass spectrometry

Journal of Chromatography A, 1998-12, Vol.828 (1), p.239-246

1998

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Separation of R- and S-Thalidomide by Reversed-Phase HPLC with ?-cyclodextrin in the mobile phase

Chirality (New York, N.Y.), 1996, Vol.8 (1), p.11-17

Reepmeyer, John C.

1996

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Use of liquid chromatography–mass spectrometry and a hydrolytic technique for the detection and structure elucidation of a novel synthetic vardenafil designer drug added illegally to a “natural” herbal dietary supplement

Direct intramolecular gas-phase transfer reactions during fragmentation of sildenafil and thiosildenafil analogs in electrospray ionization mass spectrometry

Analysis of heparin sodium by SAX/HPLC for contaminants and impurities

Inhibition of Taq polymerase as a method for screening heparin for oversulfated contaminants

Use of liquid chromatography–mass spectrometry and a chemical cleavage reaction for the structure elucidation of a new sildenafil analogue detected as an adulterant in an herbal dietary supplement

Structure elucidation of thioketone analogues of sildenafil detected as adulterants in herbal aphrodisiacs

Detection of undeclared erectile dysfunction drugs and analogues in dietary supplements by ion mobility spectrometry

Analysis of crude heparin by (1)H NMR, capillary electrophoresis, and strong-anion-exchange-HPLC for contamination by over sulfated chondroitin sulfate

Structure elucidation of a novel analogue of sildenafil detected as an adulterant in an herbal dietary supplement

Stability of the nitrogen mustard mechlorethamine in novel formulations for dermatological use

Screening of Heparin API by Near Infrared Reflectance and Raman Spectroscopy

Analysis of the nitrogen mustard mechlorethamine in topical pharmaceutical preparations by high-performance liquid chromatography

Use of a hydrolytic procedure and spectrometric methods in the structure elucidation of a thiocarbonyl analogue of sildenafil detected as an adulterant in an over-the-counter herbal aphrodisiac

Modifications and insights into a method for the analysis of the nitrogen mustard mechlorethamine by high-performance liquid chromatography

Separation and detection of the isomeric equine conjugated estrogens, equilin sulfate and Δ8,9-dehydroestrone sulfate, by liquid chromatography-electrospray-mass spectrometry using carbon-coated zirconia and porous graphitic carbon stationary phases

Liquid chromatographic determination of thalidomide in tablets, capsules, and raw materials

SCREENING FOR CORTICOSTEROIDS IN TOPICAL PHARMACEUTICALS BY HPLC WITH A SCANNING ULTRAVIOLET DETECTOR

In vitro study of nicotine release from smokeless tobacco

Separation and detection of the isomeric equine conjugated estrogens, equilin sulfate and delta8,9-dehydroestrone sulfate, by liquid chromatography--electrospray-mass spectrometry using carbon-coated zirconia and porous graphitic carbon stationary phases

Analysis of crude heparin by 1H NMR, capillary electrophoresis, and strong-anion-exchange-HPLC for contamination by over sulfated chondroitin sulfate

Analysis of crude heparin by 1 H NMR, capillary electrophoresis, and strong-anion-exchange-HPLC for contamination by over sulfated chondroitin sulfate

Separation and detection of the isomeric equine conjugated estrogens, equilin sulfate and Δ 8,9-dehydroestrone sulfate, by liquid chromatography–electrospray-mass spectrometry using carbon-coated zirconia and porous graphitic carbon stationary phases

Separation of R- and S-Thalidomide by Reversed-Phase HPLC with β-cyclodextrin in the mobile phase

Detection of clobetasol propionate as an undeclared steroid in zinc pyrithione formulations by high-performance liquid chromatography with rapid-scanning ultraviolet spectroscopy and mass spectrometry

Separation of R- and S-Thalidomide by Reversed-Phase HPLC with ?-cyclodextrin in the mobile phase

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