Although a low embryo-to-culture volume ratio is critical for the optimal development of embryos in vitro [54] [56]it would be impossible to produce sufficient numbers of embryos to compensate for the 1000-fold greater volume of flasks compared with microdroplets in dishes.
They were prepared by transferring either 20 mL (for Flutamide and Flu-1) or 50 mL (for Flu-3) from their respective stock solutions (1 mg/mL) into three separate 100 mL calibrated flasks, the volume of each flask was completed with the mobile phase, acetonitrile water (40 60, v/v).
Where V is the volume of volumetric flask and ΔT is temperature difference.
It also describes a modified channel design and a simple method to pull back the injection funnel to increase the volume of the flask.
Finally, after cooling at room temperature, water was added to the solution to complete the volume of the volumetric flask.
For the growth kinetic studies cells were seeded at 1 × 106 cells/ml in a total volume of 50 ml (flask) or 2 ml (24 well blocks) and grown as above.
The cultures were grown in cotton-stoppered baffled shake-flasks with starting medium volume of 10% of the flask volume.
For calibration, we added 0, 0.50, 1.00, 2.00, 4.00, and 8.00 mL of standard As solution into six separate 125 mL Erlenmeyer flasks and added distilled water until the total volume of liquid in each flask equaled 35.0 mL.
Added an appropriate volume of medium to the flask and aliquotted the cells into three new flasks with a starting density of 0.5 × 106 cells/mL and incubated cells at 27 °C. .
Added an appropriate volume of medium to the flask and aliquotted the cells into three new flasks with a starting density of 0.5 × 106 cells/mL and incubated cells at 27 °C.
