共 20 条
- [12] Lasier W. A., 1941, U. S. Patent, Patent No. [2,234,566, 2234566]
- [13] LOHR LT, 1962, J CHROMATOGR, V8, P129
- [14] TANABE K, 1970, SOLID ACIDS BASES, P107
- [15] 1957, Patent No. 86906
- [16] 1961, Patent No. 860909
- [17] 1964, Patent No. 1175665
- [18] 1958, Patent No. 2827476
- [19] 1961, Patent No. 873949
- [20] 1952, Patent No. 69907