ASE 200/300 VENT NEEDLE

ASE快速溶剂萃取―解决固体、半固体样品前处理的新技术

，可选用不同溶剂先后萃取相同的样品，也可用同一溶剂萃取不同的样品。可同时装入12或24个萃取池连续萃取。ASE200型萃取仪萃取池的体积为1，5，11，22，33mL。 ASE300型萃取仪的萃取池体积可选用34，66和100mL。 快速溶剂萃取的突出优点 与索氏提取、超声、微波、超临界和经典的分液漏斗振摇等传统方法相比，快速溶剂萃取有如下突出优点：有机溶剂用量少，10g样品仅需15mL溶剂，减少了废液的处理；快速，完成一次萃取全过程的时间一般仅需15分钟；基体影响小，可进行固体半固体的萃取

Obtaining Embryos: hCG Injection

the needle parallel for injection. The needle should penetrate pretty easily. If it doesn't, then the needle has probably become blunt, and it is worth switching the needle or the frog will get an abrasion. Be patient and careful with trops! X. laevis

PRODUCTION OF COMPLETELY ES CELL-DERIVED FETUSES BY AGGREGATION WITH TETRAPLOID

of aggregation plate Materials:       Dissecting microscope;       Sterile tissue culture dishes (Easy Grip 35 x 10 mm, Falcon 3001-3);       1 ml syringe with 26 G 1/2 needle of KSOM medium;       light mineral oil (EMBRYO TESTED) (e.g. Sigma: M8410);