超声萃取 meaning in Chinese

ultrasonic extraction

Standard practice for determination of soluble residual contaminants in materials by ultrasonic extraction
用超声萃取法测定材料中可溶残留污染物的标准实施规范
Standard practice for ultrasonic extraction of paint , dust , soil , and air samples for subsequent determination of lead
铅的连续测定用涂料尘埃土壤和气体样品的超声萃取的标准实施规范
Diesel oil in soil was determined quantitatively by gas chromatography - mass spectrometry with external standard method after ultrasonic extraction . the method is accurate and simple
摘要对土壤中的柴油，用超声萃取法进行处理，利用气相色谱质谱仪进行分析，采用外标法进行了定量测定。方法准确度高，简便可行。