News

 
08.11.2018

New methods uploaded

Today we uploaded the following new HPTLC methods for identification of:

  • Angelica archangelica root and rhizome
  • Angelica dahurica root and rhizome
  • Angelica gigas root and rhizome
  • Angelica pubescens root and rhizome
  • Angelica sinensis root and rhizome
  • Angelica sp. root and rhizome
  • Levisticum officinale root and rhizome
  • Ligusticum chuanxiong rhizome
  • Ligusticum sinense root and rhizome
  • Hypericum perforatum flowering tops
  • Hypericum perforatum, test for food dyes flowering tops

Login and download the methods.

Note: the list is in alphabetic order by Latin plant names. To see the newest methods first, click the grey field "Date of publication" twice.

Let us know your questions or comments!


08.11.2018

NutraIngredients newsletter features HPTLC Association

The online news resource NutraIngredients-USA features an article on the HPTLC Association.


04.06.2018

Project on Boneset finalized - new method released

The project on Eupatorium perfoliatum (Boneset) was successfully terminated and a new HPTLC identification method was released. It can be downloaded from the methods list.

The method is currently under evaluation by the American Herbal Pharmacopoeia and the European Pharmacopoeia.

This project was performed by the HPTLC Association members Roy Upton (AHP) and Eike Reich (CAMAG Laboratory). Thank you for your support.

For questions and comments on the method, contact info@hptlc-association.org.


29.05.2018

New HPTLC method for Picrorhiza

A new HPTLC method for the identification of Picrorhiza (Picrorhiza sp.) and Picrorhiza powdered dry extract is available. Note: due to the unavailability of authenticated plant material, this method does not differentiate between different Picrorhiza species.

Register and download the new method from the methods list.


07.05.2018

Method for Passion flower updated

The HPTLC identification method for Passion flower has been updated by scientists of the Zurich University of Applied Sciences (ZHAW). It features new samples, new images and a new chromatogram description. The mobile phase and derivatization reagent are unchanged. Additionally, an individual monograph for Passion flower dry extract was created, using the same HPTLC method. Both methods are under evaluation by the European Pharmacopoeia.

Download the new methods from our methods list.

For comments or questions contact info@hptlc-association.org.


17.07.2017

New HPTLC methods

The HPTLC Association presents two new HPTLC methods for the identification of Cannabis. One method is based on normal-phase separation on silica gel (pdf), the other method on C-18 modified reversed phase silica gel (pdf).

An HPTLC method for the identification of Vitex negundo leaf (pdf) according to the Herbal Medicines Compendium is published.

More methods.

Questions or comments?


26.08.2015

USP features two new chapters on HPTLC

The United States Pharmacopoeia recently published two important chapters on HPTLC in their First Supplement to USP 38–NF 33.

Chapter 1064 - Identification of Articles of Botanical Origin by High-Performance Thin-Layer Chromatography Procedure (pdf)

Chapter 203 - High-Performance Thin-Layer ChromatographyProcedure for Identification of Articles of Botanical Origin (pdf)

more...

10.02.2014

HPTLC Association becomes affiliate member of AHPA

The HPTLC Association has accepted to become affiliate member of the American Herbal Products Association (AHPA) in February 2014.