The variables pH, concentration of NaCl and sonication time were optimized using a Doehlert matrix.
Ruminal pH, concentration of ruminal NH3N and blood urea nitrogen (BUN) concentrations were not significantly different among treatments.
The effects of various parameters, such as contact time, pH, concentration, adsorbent dosage and temperature were studied.
However, the in vitro release profile of theophylline was found dependent on pH, concentration of monomers, initiator, and crosslinking agent.
The main parameters in the recovering process including pH, concentration of Ag+ and the mole ratio of H2O2 Ag+ were carefully optimized though the central composite design (CCD).
An orthogonal design was utilized to design the experimental protocol, in which pH, concentration of sulfite, temperature, and concentration of methyl green were varied simultaneously.
The factors studied were pH, concentration of methyl-β-cyclodextrin, concentration of the background electrolyte and percentage of acetonitrile as organic modifier.
In this method, the influence variables on the membrane performance including pH concentration of indicator, response time, ionic strength, and reversibility were investigated.
The influence of buffer pH, concentration of NaCl, heating time and the temperature was systemically investigated and the proposed method was then successfully applied to detect real sample.
Crucial parameters are the design of stable and reproducible surfaces which maintain biological activity of immobilized proteins, and immobilization conditions (buffer, pH, concentration).
Results showed that the pH concentration of the medium, (NH4 2SO4 and KH2PO4 were the most significant factors affecting BOL production.
