In a 25-mL volumetric flask, 1 mL of phenytoin acid suspension (25 mg/mL) was diluted to 25 mL with a 50:50 solution of methanol and deionized water and mixed with a vortex mixer for five minutes.

3.75 mL of suspension from each bottle was pipetted into a separate 50-mL volumetric flask. About 25 mL of HPLCgrade water was added to each flask, and the flasks were placed on an orbital shaker ...

Volumetric flasks are used to prepare chemical solutions of ... Claisen flasks are a type of lab flask that is used for boiling. They have two stacked stillheads: one for holding the capillary and the ...

Volumetric displays are simply cool. Throw some LEDs together, take advantage of persistence of vision, and you’ve really got something. [Nick Electronics] shows us how its done with his neat ...

Whether you’re looking for a present for a hard-to-please mother-in-law, a trendy teen, or a tasteful friend, I’ve curated a list of 100 under-$25 options that will please everyone.

Brian Mazique has covered combat sports and video games since 2011. I've only had Madden 25 for 48 hours. Still, I've already played all of my qualifying matches online head-to-head, started a ...

Fire up NBA League Pass and take note of these players who have fewer than 12 national TV games in 2024-25. The annual survey is here. NBA general managers react to key topics before the 2024-25 ...

Get ready for the 2024-25 season with 1 key storyline each day before the season tips off on Oct. 22. NBA.com Staff We’re counting down 24 key storylines heading into the 2024-25 NBA season.

Among these treasures is a 25-cent coin currently making waves in the collectors' market for its staggering potential value.

While at The Last HOPE this year, we were fortunate enough to see Wiremap, a volumetric display made from thread. Using a projector and 256 individual strands of cotton thread, [Albert Hwang ...

Here are the best gifts for $25 or less. (Note that although we made every effort to confirm these items meet that threshold, prices can dance around a bit.) If you have a slightly larger budget ...