The isopiestic method was used to determinate isopiestic molality and osmotic coefficients in single salt solutions of LiCl H 2O(molality range from 0.5 to 9.0 mol·kg -1 ),CaCl 2 H 2O(molality range from 0.35 to ...The isopiestic method was used to determinate isopiestic molality and osmotic coefficients in single salt solutions of LiCl H 2O(molality range from 0.5 to 9.0 mol·kg -1 ),CaCl 2 H 2O(molality range from 0.35 to 5.2 mol·kg -1 ) and multisalt solution LiCl CaCl 2 H 2O(ionic strength range from 0.5 to 15.7 mol·kg -1 ) at 298.15K,from which Pitzer’s interaction parameters of single salt ,mixed salts of the systems were obtained.The mean ionic activity coefficients of LiCl、CaCl 2 in pure and mixed solutions were reported.展开更多
In the measurement of atomic absorption, as compared with the flame emission method, the spectral interference of cotenants are mainly due to the absorption bands of the molecular absorption species. On this subject, ...In the measurement of atomic absorption, as compared with the flame emission method, the spectral interference of cotenants are mainly due to the absorption bands of the molecular absorption species. On this subject, a detailed review has been made by Daidohji Hidehiro before. It has been also reported that there exist two kinds of typical molecular absorption interferences[2-6] which will be discussed in this paper. In air-C2H2 flames, cotenant calcium interferes severely with the determination of barium by atomic absorption. The mechanism was explained in terms of light scatter effect.展开更多
文摘The isopiestic method was used to determinate isopiestic molality and osmotic coefficients in single salt solutions of LiCl H 2O(molality range from 0.5 to 9.0 mol·kg -1 ),CaCl 2 H 2O(molality range from 0.35 to 5.2 mol·kg -1 ) and multisalt solution LiCl CaCl 2 H 2O(ionic strength range from 0.5 to 15.7 mol·kg -1 ) at 298.15K,from which Pitzer’s interaction parameters of single salt ,mixed salts of the systems were obtained.The mean ionic activity coefficients of LiCl、CaCl 2 in pure and mixed solutions were reported.
文摘In the measurement of atomic absorption, as compared with the flame emission method, the spectral interference of cotenants are mainly due to the absorption bands of the molecular absorption species. On this subject, a detailed review has been made by Daidohji Hidehiro before. It has been also reported that there exist two kinds of typical molecular absorption interferences[2-6] which will be discussed in this paper. In air-C2H2 flames, cotenant calcium interferes severely with the determination of barium by atomic absorption. The mechanism was explained in terms of light scatter effect.