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pro vyhledávání: '"Audrey E. Stevenson"'
Autor:
Audrey E. Stevenson, N. T. Clare
Publikováno v:
New Zealand Journal of Agricultural Research. 6:121-126
A colorimetric method for determining chromic oxide in faeces by automatic chemical analysis is described. The ashed faeces samples are digested with phosphoric and sulphuric acids to bring the chromic oxide into solution. From this stage the analysi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3925efdc533340383c099ae61e9d6e48
https://doi.org/10.1080/00288233.1963.10419329
https://doi.org/10.1080/00288233.1963.10419329
Autor:
Audrey E. Stevenson, N. T. Clare
Publikováno v:
New Zealand Journal of Agricultural Research. 7:198-204
Conditions influencing development of colour in the alkaline phenol/hypochlorite method for determination of ammonia are discussed. The reaction is applied to the determination of nitrogen in digests of feed and faeces samples, using the AutoAnalyzer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b4e2fe199697a3eaff25a38c86adb49
https://doi.org/10.1080/00288233.1964.10418151
https://doi.org/10.1080/00288233.1964.10418151
Autor:
H. de Langen, Audrey E. Stevenson
Publikováno v:
New Zealand Journal of Agricultural Research. 3:314-319
Summary A wet digestion colorimetric method for the determination of chromic oxide marker in faeces is described. In comparison with other methods examined it has the following advantages: 1. Less critical conditions. 2. Higher reproducibility. 3. Hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f35fe21b6d56a7b1354af21bbbc9e184
https://doi.org/10.1080/00288233.1960.10418086
https://doi.org/10.1080/00288233.1960.10418086
Autor:
Audrey E. Stevenson
Publikováno v:
New Zealand Journal of Agricultural Research. 5:339-345
Possible errors in the estimation of total recovery of chromic oxide from representative faeces sampies have been examined. Six non-lactating cows receiving cut grass at 2 levels were fed chromic o...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7d2d92e2a75a47285781b8428382006
https://doi.org/10.1080/00288233.1962.10419964
https://doi.org/10.1080/00288233.1962.10419964