Modeling available 2,4-dichlorophenoxyacetic acid in a tissue culture medium containing activated carbon

2005 ◽  
Vol 82 (2) ◽  
pp. 179-188 ◽  
Author(s):  
Andrew Toering ◽  
Gerald S. Pullman
1930 ◽  
Vol 1 (9) ◽  
pp. 289-290
Author(s):  
K. C. Richardson ◽  
E. S. Horning

1940 ◽  
Vol 72 (6) ◽  
pp. 729-745 ◽  
Author(s):  
Jonas E. Salk ◽  
G. I. Lavin ◽  
Thomas Francis

A study of the antigenic potency of influenza virus inactivated by ultraviolet radiation has been made. Virus so inactivated is still capable of functioning as an immunizing agent when given to mice by the intraperitoneal route. In high concentrations inactivated virus appears to be nearly as effective as active virus but when quantitative comparisons of the immunity induced by different dilutions are made, it is seen that a hundredfold loss in immunizing capacity occurs during inactivation. Virus in suspensions prepared from the lungs of infected mice is inactivated more rapidly than virus in tissue culture medium. A standard for the comparison of vaccines of epidemic influenza virus is proposed.


2013 ◽  
Vol 68 (7) ◽  
pp. 1503-1511 ◽  
Author(s):  
J. M. Salman ◽  
F. M. Abid

Palm-date pits were used to prepare activated carbon by physiochemical activation method, which consisted of potassium hydroxide (KOH) treatment and carbon dioxide (CO2) gasification. The effects of variable parameters, activation temperature, activation time and chemical impregnation ratios (KOH: char by weight) on the preparation of activated carbon and for removal of pesticides: bentazon, carbofuran and 2,4-dichlorophenoxyacetic acid (2,4-D) were investigated. Based on the central composite design (CCD), two factor interaction (2FI) and quadratic models were respectively employed to correlate the effect of variable parameters on the preparation of activated carbon used for removal of pesticides with carbon yield. From the analysis of variance (ANOVA), the most influential factor on each experimental design response was identified. The optimum conditions for preparing activated carbon from palm-date pits were found to be: activation temperature of 850 °C, activation time of 3 h and chemical impregnation ratio of 3.75, which resulted in an activated carbon yield of 19.5% and bentazon, carbofuran, and 2,4-D removal of 84, 83, and 93%, respectively.


2020 ◽  
Vol 54 (1) ◽  
pp. 54-60
Author(s):  
S. A. Kulaishin ◽  
M. D. Vedenyapina ◽  
L. R. Sharifullina ◽  
A. L. Lapidus

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