The phrase "activity of solutions" is correct and usable in written English.
It can be used in scientific or technical contexts, particularly in chemistry or physics, to refer to the behavior or properties of solutions.
Example: "The activity of solutions can significantly affect the rate of chemical reactions."
Alternatives: "behavior of solutions" or "properties of solutions".
The organisms were tested against the activity of solutions of concentrations (1 mg/mL) and using inhibition zone diameter in mm as criterion for the antimicrobial activity (agar well diffusion method).
First, speciation computations were run to determine the pH, HCl gas fugacity, and water activity of solutions saturated with CaCl2:2H2O (the stable solid phase in the temperature range considered) at 1 bar and temperatures from 50 to 150°C (Table 1).
After 5 h, plants were washed in deionised water for ca.1.5 min and the remaining 14C activity of solutions was measured by liquid scintillation counting in a Wallac 1404 scintillation counter (Perkin-Elmer, Boston, MA, USA).
The photocatalytic activity of solution-dispersed TiO2 was compared with that of the PE-based photocatalytic system for DR 80 degradation.
The activity of solution was measured at a fixed interval of every 2.0 min.
As can be seen in Fig. 5, by increasing the activity of solution, the removal efficiency of 90Sr is decreased.
In the present investigation, it was observed that due to the rapid ion-isotopic exchange reaction taking place, the activity of solution decreases rapidly initially, then due to the slow exchange, the activity of the solution decreases slowly and finally remains nearly constant.
Ionization chambers (ICs) are the most commonly used instrument for measuring activities of solutions containing radiopharmaceuticals used in nuclear medicine, due to their simplicity of operation and accurate measurement results.
In this study the rheological behaviour, air liquid surface and liquid liquid interfacial activities of solutions of water-soluble associative copolymers of sodium maleate/1-dodecene and sodium maleate/1-hexadecene are investigated with respect to the polymer concentration, temperature, salinity, shear rate and time.
As a result, the specific activities of solutions of Zr-labelled immunoconjugates for ex vivo biodistributions were necessarily lower than those prepared for PET imaging.
In recent years there has been much interest in the use of computers to generate theoretical expressions for the activity coefficients of solutions.
