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pro vyhledávání: '"Marta Willems"'
Autor:
Marta Willems
Publikováno v:
Fresenius' Zeitschrift für analytische Chemie. 297:283-286
The position of Analytical Chemistry in various degree courses in Danish universities is schematically presented. These courses include agricultural chemistry, food chemistry, pharmacy, chemical engineering, physical and general chemistry. Prerequisi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04b687a13f7c613ca84e25db48f0a1c8
https://doi.org/10.1007/bf00488354
https://doi.org/10.1007/bf00488354
Autor:
Marta Willems, Kjeld Rasmussen
Publikováno v:
Acta Agriculturae Scandinavica. 31:107-115
(1981). Pyrite Oxidation and Leaching in Excavated Lignite Soil. Acta Agriculturae Scandinavica: Vol. 31, No. 2, pp. 107-115.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8c4b170e4520abd7bdf9c80fbfab17d
https://doi.org/10.1080/00015128109435309
https://doi.org/10.1080/00015128109435309
Autor:
Marta Willems, Ole K. Borggaard
Publikováno v:
Journal of AOAC INTERNATIONAL. 65:762-763
There is a risk of explosion when organic samples are digested with nitric acid in a closed vessel at elevated temperatures for elemental analysis. Sample size and the size, material, and thickness of bomb walls should be carefully considered. Digest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa9c0f0a0f499168a365e77f523808ad
https://doi.org/10.1093/jaoac/65.3.762
https://doi.org/10.1093/jaoac/65.3.762
Publikováno v:
The Analyst. 105:119
A procedure is described for the determination of copper, lead, cadmium, nickel and cobalt in EDTA extracts of soil and similar material. Diethylammonium diethyldithiocarbamate or ammonium tetramethylene dithiocarbamate metal complexes are extracted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2508d359d4d77249597311e0e6b6dd60
https://doi.org/10.1039/an9800500119
https://doi.org/10.1039/an9800500119
Publikováno v:
The Analyst. 107:1479
Diethylammonium diethyldithiocarbamate (DDDC), ammonium tetramethylene dithiocarbamate (ammonium pyrrolidine dithiocarbamate; APDC), 1-nitrosonaphth-2-ol and 2-nitrosonaphth-1-ol were compared as ligands for the determination of trace amounts of coba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cc56f980a081af5ecce689f21ffd3a4
https://doi.org/10.1039/an9820701479
https://doi.org/10.1039/an9820701479