共 50 条
- [4] SOLVENT-EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION OF GALLIUM WITH PYROCATECHOL VIOLET JAPAN ANALYST, 1972, 21 (06): : 752 - &
- [8] DETERMINATION OF TRACES OF POLYOXYETHYLENE NON-IONIC SURFACTANTS IN WATER BY SOLVENT-EXTRACTION SPECTROPHOTOMETRY FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1983, 315 (03): : 201 - 204