Thirty-nine soils from northern New South Wales were used to examine the effects of phosphate buffer capacity on (i) the extraction of labile phosphate by four soil tests, (ii) the relationships between the four soil tests, and (iii) the critical level of each soil test required for near-maximum yield of wheat under field conditions. The results confirmed the principle, recently proposed by the...

1. Blood properties of valley pocket gophers, Thomomys bottae, and laboratory rats, Ratfus norvegicus, were examined to determine blood buffering capabilities. 2. Hematocrit, plasma proteins and inorganic phosphate levels were not significantly different between these species. 3. Oxygen capacity of the pocket gophers, 23.1 vol%, was greater than that of the rats, 20.8 ~ 0 1 % . 4. Bicarbonate c...

The composition of background electrolyte (BGE) in capillary electrophoresis (CE) is important for both selectivity and efficiency. Although the importance of pH and ionic strength predominates, attention should also be paid to specific conductivity, heat dissipation and buffering capacity. At a given pH/ionic strength combination, several buffers can in principle be used. Preference should be ...