Tag Archives | Practicals

6 Full Proof Techniques of Chromatography

The following points highlight the six full proof techniques of chromatography. The techniques are: 1. Partition Chromatography 2. Ion Exchange Chromatography 3. Adsorption Chromatography 4. Gel Permeation Chromatography 5. Gas Chromatography Principle 6. High Performance Liquid Chromatography (HPLC). Technique # 1. Partition Chromatography: Two immiscible liquid phases are passed through the supporting phase-containing materials. This is also called Liquid-Liquid Chromatography. [...]

By |2016-10-20T07:39:56+00:00October 20, 2016|Chromatography|Comments Off on 6 Full Proof Techniques of Chromatography
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Examples of Anatomical Changes in Plants

A number of plants develop unique adaptive modifications to overcome the various environmental stress. These modifications include alteration of gross morphological features as well as anatomical structures. Some examples of anatomical changes are given: A. Loaf Anatomy of Nerium sp. (Fig. 8.1): The T.S. view of Nerium leaf shows the following layers of tissues: 1. Epidermis: Both upper and lower [...]

By |2016-10-20T07:39:56+00:00October 20, 2016|Plants|Comments Off on Examples of Anatomical Changes in Plants
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Structure of Some Dicotyledonous Stems (With Diagram)

In this article we will discuss about the anatomical structure of some dicotyledonous stems that show secondary growth. 1. Anatomy of Bignonia Stem (Fig. 7.4): The following tissue layers are seen in the T.S. of the stem: 1. Epidermis: It is uniseriate and cuticularised. It is wavy in outline. 2. Cortex: It is parenchymatous and bounded internally by a starch [...]

By |2016-10-20T07:39:55+00:00October 20, 2016|Dicotyledonous Stems|Comments Off on Structure of Some Dicotyledonous Stems (With Diagram)
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