lucky_pharmacist's blog

Dear Friends,
I am going to post in this week my collection of a list of several derivatizing agents/ visualization indicators which will prove helpful to you also.continued from last post...................... 

Lead tetraacetate / 2,7-dichlorofluorescein

Dear Friends,
I am going to post in this week my collection of a list of several derivatizing agents/ visualization indicators which will prove helpful to you also.continued from last post...................... 

Ethanolamine diphenylborate (flavone reagent according to Neu)

Dear Friends,
I am going to post in this week my collection of a list of several derivatizing agents/ visualization indicators which will prove helpful to you also.

continued from last post......................

Antimony (III) chloride
For detection of flavonoids
Spray with a 10% solution of antimony (III) chloride in chloroform
Results: Fluorescing spots in long wavelength light (360nm).

Antimony (III) chloride
For detection of vitamins A & D, carotenoids, steroids, sapogenins, steroid glycosides, terpenes
Spray with a solution of 25g antimony (III) chloride in 75ml chloroform (generally a saturated solution of antimony (III) chloride in chloroform or carbon tetrachloride is used).
Heat 10min at 100C, view under long wavelength light (360nm).

Bromine / Carbon tetrachloride
For detection of organothiophosphorous pesticides
Place chromatogram in a chamber with a 10% bromine and tetrachloride without contact with the liquid.

TLC Visualization Reagents

Dear Friends, when going for chromatography of a substance we always need knowledge of detection methods, derivatizing agents/ visualization indicators. I am going to post in this week my collection of a list of several derivatizing agents/ visualization indicators which will prove helpful to you also.

TLC Visualization Reagents

This is a brief selection of the many available TLC visualization reagents. Below each title is the type of compounds or structure which can be detected with the specific reagent. When beginning work with these reagents, acquired any MSDS (material safety data sheets) to see if there are any extra precautions needed in safely using them.

TRIPs, the intellectual property component of the Uruguay round of the GATT Treaty, has given rise to an acrimonious debate between the developed countries and less developed countries (LDCs).

Business interests in the developed world claimed large losses from the imitation and use of their innovations in LDCs. They also asserted that IPRs would benefit the developing countries by encouraging foreign investment, by enabling transfer of technology and greater domestic research and development (R&D).

Patents are one of the oldest forms of intellectual property protection and, as with all forms of protection for intellectual property; the aim of a patent system is to encourage economic and technological development by rewarding intellectual creativity.

To be patentable, an invention must also meet certain criteria relating to novelty and other features. The Agreement on Trade Related Aspects of Intellectual Property Rights (TRIPS Agreement) provides three criteria and conditions for an invention to be patentable.

There are several characteristics that a patent office will look at to determine whether the invention is patentable. At the outset, there has to be a patent application on file. In most cases that patent application is examined by a technical expert to ensure that it meets the substantive criteria for patentability.

What is Intellectual Property?

To some extent you may already know the answer to this question. We know that the inventor of a machine, the author of a book, or the writer of music somehow usually ‘own’ their work. From this ownership, certain consequences flow and you probably have been made aware of the fact that we cannot just copy or buy a copy of their works without consideration of their rights.