共 6 条
- [2] KOLTHOFF IM, 1947, VOLUMETRIC ANALYSIS, V2, P306
- [3] KOLTHOFF IM, 1947, VOLUMETRIC ANAL, V1, P92
- [4] SAMUELSON O, 1940, SVENSK KEM TIDSKR, V52, P115
- [5] Direct titration of sulfate [J]. INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1933, 5 : 403 - 406
- [6] WILLARD HH, 1940, ELEMENTARY QUANTITAT, P171