Highly robust plates with gypsum as binder, fully compliant with international pharmacopoeia (Ph. Eur. and USP).
Traditionally, TLC monographs in a pharmacopoeia refer to products using silica G, containing gypsum as binder, or silica H with no foreign binder. There are about 200 monograph methods in the European Pharmacopoeia (Ph. Eur.) referring to these plates*. Fully compliant with international pharmacopoeia, these new TLC silica gel 60G plates are recommended for customers in QA/QC labs using older Ph. Eur. monograph methods, which require TLC plates with a gypsum binder and who do not wish to switch to classic Merck TLC plates with organic binders. Merck's classic TLC plates fulfill the performance test requirements of Ph. Eur. for G plates with gypsum, even though they use modern organic binders. Today, many customers routinely use these classic TLC plates in place of gypsum plates and indeed several monographs have been updated to officially confirm this change.
* The United States Pharmacopoeia (USP) does not distinguish between TLC plates with gypsum or organic binder, thus Merck standard plates can always be used.