The method of separating substances by utilizing their different solubility in two immiscible solvents is called extraction. The commonly used traditional extraction methods currently have many shortcomings, such as requiring a large amount of reagents, high experimental costs, complex sample processing steps, waste of time, manpower, unsatisfactory sample recovery rate, precision, and easy sample loss. With the emergence of problems, corresponding solutions have emerged: new technologies such as solid-phase extraction, solid-phase microextraction, supercritical extraction, and microwave extraction have emerged.
Several Types of Extraction Technology
1. Organic solvent extraction
2. Aqueous two-phase extraction
3. Supercritical extraction
4. Microwave extraction
5. Ultrasonic extraction
6. Ultra high pressure extraction, 等
管材設備
類型
|
管式感測器
類型
|
頻率
(千 赫)
|
超聲波
輸出(W)
|
總長度
(毫米)
|
直徑
(毫米)
|
靜態容量
(pF±10%)
|
PU-UE1 系列
|
美國 61
|
15-28
|
1000
|
500
|
Φ50-55
|
68000
|
PU-UE5 系列
|
美國 25
|
15-28
|
1500
|
850
|
Φ50-55
|
68000
|
PU-UE6 系列
|
美國-16
|
15-28
|
2000
|
1100
|
Φ50-55
|
132000
|