| 1. | Water quality - determination of mercury - enrichment methods by amalgamation 水质.汞含量测定.汞齐化浓缩法 |
| 2. | Chemical enrichment method 化学浓缩法 |
| 3. | Laser enrichment process 激光浓缩法 |
| 4. | Soils : investigation and testing . determination of particle density . pycnometer method 土壤.检验与试验.土壤固体颗粒密度测定.水浓缩法 |
| 5. | Water quality - determination of mercury - methods after enrichment by amalgamation ; german version en 12338 : 1998 水质.汞含量测定.汞齐化浓缩法 |
| 6. | Compressed air - part 8 : test methods for solid particle content by mass concentration 压缩空气.第8部分:用质量浓缩法测定固体颗粒含量的试验方法 |
| 7. | Standard practice for separation of ignitable liquid residues from fire debris samples by passive headspace concentration with activated charcoal 用活性木炭液上空间无源浓缩法分离从火烧瓦砾样品中获取的可燃液体残渣的标准实施规程 |
| 8. | This method is to obtain multi - fungi from water and waster water by methylene chloride fluid - fluid extract nitrogen , and then take the concentration purification to the highly effective liquid phase color spectrometer where it can be detected by the diode matrix detector 摘要用二氯甲烷液液萃取氮吹浓缩法萃取水和废水中的多菌灵,取浓缩纯化后的有机相直接进样到高效液相色谱仪,用二极管矩阵检测器检测,根据保留时间外标法定量。 |