In the first experiment, the effect of glycine on post-equilibration motility was evaluated.
In the presence of 2.5 or 5.0% Me2SO, glycine treatments (25, 50, and 75 mM) yielded higher (P<0.05) post-equilibration motility at all equilibration times examined compared to the control.
The total run time was 8 min together with 2 min post time equilibration.
The obtained validated HILIC-method allows for the detection and quantification of the most frequently encountered illegal peptides on the internet in a total run time of 35 min including post gradient equilibration and online cleaning step.
A gradient elution was programmed with 5%A/95%B from 0 to 9 min, 10%A/80%B/10%C from 10 to 19 min, 20%A/60%B/20%C from 20 to 30 min, flushing and post run equilibration of the column with 100%A for 5 min where A, B and C stand for acetonitrile, acetic acid solution of pH 3.0 and methanol, respectively.
This post run and equilibration step is time consuming and needs several milliliters of the mobile phase.
In the first experiment, ASMA was performed on heterospermic pooled samples (fresh, post-cooling after equilibration with the glycerol preservation solution and post-thawing): length, width, area and perimeter were measured.
To address this question, we evaluated the size of the sperm head in fresh control cells, post-cooling cells after equilibration with the glycerol preservation solution, and post-thawing cells.
No differences were observed between post-cooling cells after equilibration with the glycerol preservation solution and post-thawing spermatozoa and only minor osmotic differences between them and fresh sperm were observed.
The solvents and optimized gradient conditions for LC were: Solvent A, 50%methanol/50%water/0.05%5% formic acid; Solvent B, 90% acetonitrile with 5 mM ammonium acetate; elution gradient: 0 min 100% B; 20 25 min 40% B; post-run time for equilibration, 10 min in 100% B. The LC system was coupled directly to the Q-TOF mass spectrometer.
There was a 5 min post run at initial conditions for equilibration of the column.
