Spectroscopic ethanol is an absolute ethanol with a low absorbance in ultraviolet and visible light, fit for use as a solvent in ultraviolet-visible spectroscopy.

The reagents were dissolved in absolute ethanol.

This probably explains the failure of bFGF to protect the gastric mucosa against the damage caused by absolute ethanol and acidified aspirin.

Then, cells were fixed by adding 4 ml of -20 C absolute ethanol and stored in -20 C. Before analysis, cells were centrifuged and the pellet was re-suspended in 1 ml of PBS.

Next, 3 volumes of ice-cold absolute ethanol were added and the DNA precipitated for 30 minutes at -80 C. DNA was pelleted by centrifugation at 4 C for 15 minutes.

Alternately, specimens for electron microscopy were passed through a series of 95% ethanol, 97.5% ethanol, absolute ethanol, a 50:50 mix of absolute ethanol and hexamethyldisilazane (HMDS), to 100% HMDS.

Each cover slip was washed thrice with phosphate buffered saline, fixed in 50% ethanol, dehydrated in absolute ethanol, air dried and Giemsa stained.

Crude sultam can be crystallized using absolute ethanol to yield pure camphorsultam.

The hydrogen evolution is normally treated with absolute ethanol in concentration exceeding 15%.

The Bouveault-Blanc reduction is a chemical reaction in which an ester is reduced to primary alcohols using absolute ethanol and sodium metal.