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pro vyhledávání: '"Timothy S. Stevens"'
Autor:
Timothy S. Stevens
Publikováno v:
Advances in Chromatography ISBN: 9781003209690
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7698b08ba1c3dd3086985ee19949b87
https://doi.org/10.1201/9781003209690-3
https://doi.org/10.1201/9781003209690-3
Autor:
Timothy S. Stevens
Publikováno v:
Journal of Chromatography A. 956:43-46
The membrane suppressor for ion chromatography was first demonstrated in 1971. However, development of the membrane suppressor was delayed by the ease of preparation and ruggedness of a suppressor column. By 1981, a practical membrane suppressor had
Autor:
Timothy S. Stevens, Robert B Grorud
Publikováno v:
Journal of AOAC INTERNATIONAL. 62:738-741
A high pressure liquid chromatographic (HPLC) assay of amine salt and ester formulations of MCPA has been collaboratively studied. The AOAC 2,4-D HPLC method has been modified for application to MCPA products. The MCPA methodology is identical to tha
Autor:
S W King, E Hodgins, P D Lonn, Timothy S. Stevens, Cathy Wedelstaedt, T Harris, Robert B Grorud, B Bennett
Publikováno v:
Journal of AOAC INTERNATIONAL. 66:1390-1394
As a replacement for the present mercury reagent titration assay for dalapon grasskiller products, a liquid chromatographic method has been developed and collaboratively studied. The method separates the active ingredient, 2,2-dichloropropionic acid,
Publikováno v:
C R C Critical Reviews in Analytical Chemistry. 9:197-217
Autor:
James C. Davis, Timothy S. Stevens
Publikováno v:
Journal of Membrane Science. 31:249-258
Ion-exchange hollow fibers have been used for exchange of cations in ion-chromatography effluents. The hollow fibers replace the conventional ion-exchange resin columns used to reduce the conductivity of the effluent by converting the sodium carbonat
Autor:
Hernan J. Cortes, Timothy S. Stevens
Publikováno v:
Journal of Chromatography A. 295:269-275
Publikováno v:
Analytical Chemistry. 54:950-953
Autor:
Timothy S. Stevens
Publikováno v:
Journal of AOAC INTERNATIONAL. 62:297-303
A rapid and precise fully automated, direct injection high pressure liquid chromatographic method is described for assaying liquid formulations of 2,4-dichlorophenoxyacetic acid (2,4-D) and/or picloram (4-amino-3,5,6-trichloropicolinic acid). The met
Publikováno v:
Analytical Chemistry. 47:1801-1809