MethodsNew | ID | Application Note |
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F-38 | DPPH-HPTLC Screening The radical scavenging activity of DPPH is suitable for detecting antioxidant properties of substances after separation by HPTLC. The proposed method is optimized for practicability and reproducibility and focuses on antioxidant components of extracts from medicinal plants. | A-87.1 | Determination of aucubin and catalpol in leaves of Ribwort Plantain (Plantago lanceolata) by HPTLC
Aucubin and catalpol are two iridoid glycosides, which are present in leaves of Plantago lanceolata L. (Ribwort Plantain) as well as in other medicinal plants. The content of the iridoid glycosides depends on the age of the plant. Young leaves may contain up to 9 % of iridoids whereas old leaves may only show traces. Catalpol is dominant in young leaves; in older ones the concentration of aucubin is higher. |
A-88.1 | Determination of melamine in milk by HPTLC
In fall 2008 there was a scandal on milk products and infant formula adulterated with melamine, which caused kidney damag and several deaths among children. Melamine (1,3,5-triazine-2,4,6-triamine) may have been illegally added to mask low protein content in fraudulently diluted or low quality milk. Since then there has been great need for rapid and reliable methods of analysis. |
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