Zobrazeno 1 - 10
of 14
pro vyhledávání: '"C. L. Wrenshall"'
Publikováno v:
Canadian Journal of Research. :178-191
A study of factors affecting the ceruleomolybdate reaction for phosphate is reported. The concentrations of stannous and stannic ions, the presence of extraneous salts, and temperature are important factors affecting the intensity and stability of th
Autor:
C. L. Wrenshall, W. J. Dyer
Publikováno v:
Canadian Journal of Research. :199-205
Dissolved organic phosphorus may be determined, even in highly coloured alkaline soil extracts, by the application of photoelectric colorimetry to the ceruleomolybdate colour reaction of phosphate ions. Total organic phosphorus may be extracted from
Autor:
R. R. McKibbin, C. L. Wrenshall
Publikováno v:
Agronomy Journal. 27:511-518
Autor:
R. R. McKibbin, C. L. Wrenshall
Publikováno v:
Canadian Journal of Research. :475-479
An improved procedure for the separation of nucleic acid material from soil is described. By its use as much as 65% of the apparent organic phosphorus in soil has been separated in the nucleic acid fraction; this shows that most of the soil organic p
Publikováno v:
Canadian Journal of Research. 12:627-645
Respiration and heating studies were made on hard red spring wheat.Estimation of the true respiration of hard red spring wheat is complicated by the respiration of fungi which develop on damp wheat. The germination and growth of fungi can be controll
Autor:
W. J. Dyer, C. L. Wrenshall
Publikováno v:
Soil Science. 51:159-170
Autor:
C. L. Wrenshall, W. J. Dyer
Publikováno v:
Canadian Journal of Research. :97-108
A sensitive and accurate method for the determination of phosphate, involving the application of the Evelyn photoelectric colorimeter to the ceruleomolybdate reaction, is described. This technique makes it possible to differentiate phosphate phosphor
Autor:
E. H. Brown, H. H. Morgan, E. R. Rushton, R. T. Kononjuk, D. A. Ptschelinzew, N. F. Michailowa, W. J. Dyer, C. L. Wrenshall, I. Berenblum, E. Chain, A. Chrétien, J. Kraft, A. B. Gerber, F. T. Miles
Publikováno v:
Fresenius' Zeitschrift für analytische Chemie. 124:58-61
Autor:
C. L. Wrenshall, J. R. McMahan
Publikováno v:
Journal of Milk and Food Technology. 19:104-106
The characteristics of antibiotic action and several practical applications of antibiotics in the preservation of foods are discussed. The present status of government regulatory measures and prospects for future developments complete the paper.
Autor:
C L, WRENSHALL
Publikováno v:
Antibiotics annual.