Cross-validation of the osmotic pressure based on Pitzer model with air humidity osmometry at high concentration of ammonium sulfate solutions.
The osmotic pressure of ammonium sulfate solutions has been measured by the well-established freezing point osmometry in dilute solutions and we recently reported air humidity osmometry in a much wider range of concentration. Air humidity osmometry cross-validated the theoretical calculations of osmotic pressure based on the Pitzer model at high concentrations by two one-sided test (TOST) of equivalence with multiple testing corrections, where no other experimental method could serve as a reference for comparison. Although more strict equivalence criteria were established between the measurements of freezing point osmometry and the calculations based on the Pitzer model at low concentration, air humidity osmometry is the only currently available osmometry applicable to high concentration, serves as an economic addition to standard osmometry.
Xiao-Lan
XL
Wang
Ting-Ting
TT
Zhan
Xian-Cheng
XC
Zhan
Xiao-Ying
XY
Tan
Xiao-You
XY
Qu
Xin-Yue
XY
Wang
Cheng-Rong
CR
Li
D000645:Ammonium Sulfate / Q000737:chemistry*; D005615:Freezing; D006813:Humidity; D009994:Osmolar Concentration; D061286:Osmometry / Q000379:methods*; D009997:Osmotic Pressure; D012996:Solutions
D012996:Solutions; D000645:Ammonium Sulfate