| 1. | It is difficult to define the detection limits obtained by chelation-solvent extraction . 确定螯合--溶剂萃取法所得到的检测限颇为困难。 |
| 2. | Extracting magnesium from bittern by solvent extraction 用溶剂萃取法从卤水中提取镁 |
| 3. | Research on the extraction of tomoto red coloring matter 萃取法提取蕃茄红色素的初步研究 |
| 4. | Study on solvent extraction of lycopene 溶剂萃取法提取番茄红素的研究 |
| 5. | Research progress of scandium recovery by solvent extraction methold 溶剂萃取法提钪研究进展 |
| 6. | Determination of matter soluble in water of pigments hot extraction method 颜料水溶物测定热萃取法 |
| 7. | Determination of matter soluble in water of pigments cold extraction method 颜料水溶物测定冷萃取法 |
| 8. | Extraction of oxalic acid from dilute solution by chemical complexation 络合萃取法从稀溶液中提取草酸 |
| 9. | Oilseed residues - determination of oil content - rapid extraction method 油料种子残渣.油含量测定.快速萃取法 |
| 10. | Crude petroleum and fuel oils . determination of sediment . extraction method 原油和燃料油.沉积物的测定.萃取法 |