IMPORTANT NOTICE: As of December 21, 2025, we will no longer provide the old free Moodle hosting plan with pre-installed plugins that your site currently uses.
After that date, all sites that use it and have not switched to a paid hosting plan will be migrated to the current free hosting plan (wihout plugins and with only 2 GB of disk space).
You can switch to a payment plan for only
$19.95 USD per month or $219.95 USD per year (plus local taxes).
Separation of optical isomers can be done by using chiral stationary phases.Different principles operate for different types of stationary phases and for different samples.The stationary phases used for this type of chromatography are mostly chemically bonded silica gel.