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R W Frei

Showing results (21-30 of 103) with videos related to

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Journal of Chromatography|April 26, 1972
Fluorigenic labelling of carbamates with dansyl chloride. IV. In situ quantitation of N-methyl carbamate insecticides on thin-layer chromatogramsR W Frei, J F Lawrence
Journal of Chromatographic Science|June 1, 1975
Quantitative thin-layer chromatography of pesticidesJ D MacNeil, R W Frei
International Journal of Environmental Analytical Chemistry|May 1, 1972
Analysis of carbamates as fluorescent 1-dimethylamino-naphthalene-5-sulfonate estersJ F Lawrence, R W Frei
Journal of Chromatography|March 27, 1974
Fluorimetric derivatization for pesticide residue analysisJ F Lawrence, R W Frei
Journal of Chromatography|January 21, 1976
Liquid chromatography of dansyl derivatives of some alkaloids and the application to the analysis of pharmaceuticalsR W Frei, W Santi, M Thomas
Journal of Chromatography|September 3, 1975
Combined ultraviolet-fluorescence detection in high-pressure liquid chromatography of pharmaceuticalsW Lindner, R W Frei, W Santi
Analytical Chemistry|September 1, 1976
Ultraviolet derivatization of digitalis glycosides as 4-nitrobenzoates for liquid chromatographic trace analysisF Nachtmann, H Spitzy, R W Frei
Journal of Chromatographic Science|June 10, 1972
Separation of polynuclear aza-heterocyclics by high-pressure liquid chromatography using a silver-impregnated adsorbentR Vivilecchia, M Thiébaud, R W Frei
Analytica Chimica Acta|July 1, 1975
A simple concentration procedure for trace metals for x-ray fluorescence and atomic absorption spectrometryG Knapp, B Schreiber, R W Frei
Journal of Chromatography|November 3, 1976
Post-column fluorescence derivatization of peptides. Problems and potential in high-performance liquid chromatographyR W Frei, L Michel, W Santi
Pageof 11

Showing results (21-30 of 103) with videos related to

Sort By:
Pageof 11
Journal of Chromatography|April 26, 1972
Fluorigenic labelling of carbamates with dansyl chloride. IV. In situ quantitation of N-methyl carbamate insecticides on thin-layer chromatogramsR W Frei, J F Lawrence
Journal of Chromatographic Science|June 1, 1975
Quantitative thin-layer chromatography of pesticidesJ D MacNeil, R W Frei
International Journal of Environmental Analytical Chemistry|May 1, 1972
Analysis of carbamates as fluorescent 1-dimethylamino-naphthalene-5-sulfonate estersJ F Lawrence, R W Frei
Journal of Chromatography|March 27, 1974
Fluorimetric derivatization for pesticide residue analysisJ F Lawrence, R W Frei
Journal of Chromatography|January 21, 1976
Liquid chromatography of dansyl derivatives of some alkaloids and the application to the analysis of pharmaceuticalsR W Frei, W Santi, M Thomas
Journal of Chromatography|September 3, 1975
Combined ultraviolet-fluorescence detection in high-pressure liquid chromatography of pharmaceuticalsW Lindner, R W Frei, W Santi
Analytical Chemistry|September 1, 1976
Ultraviolet derivatization of digitalis glycosides as 4-nitrobenzoates for liquid chromatographic trace analysisF Nachtmann, H Spitzy, R W Frei
Journal of Chromatographic Science|June 10, 1972
Separation of polynuclear aza-heterocyclics by high-pressure liquid chromatography using a silver-impregnated adsorbentR Vivilecchia, M Thiébaud, R W Frei
Analytica Chimica Acta|July 1, 1975
A simple concentration procedure for trace metals for x-ray fluorescence and atomic absorption spectrometryG Knapp, B Schreiber, R W Frei
Journal of Chromatography|November 3, 1976
Post-column fluorescence derivatization of peptides. Problems and potential in high-performance liquid chromatographyR W Frei, L Michel, W Santi
Pageof 11