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why ascending method of paper chromatography is preferredthe ascending method is preferred because of the simplicity of the set up in actual method
define descending type of paper chromatographyin descending chromatography the movement or flow of mobile phase is in downward direction in this
define ascending type of paper chromatographythe ascending type consists in dipping the lower end of the paper containing the sample spots into the
explain following trems a state three structural features of prokaryotic cellsb describe the functions in eukaryotic cells of lysosomes ribosomes and
define technique of paper chromatographypaper chromatography is used as1ascending 2descending or3horizontal technique circular paper chromatographyit
define about the paper chromatographypaper chromatography is a very useful technique for separating mixtures of metal ions anions amino acids sugars
define about the column chromatographyin column chromatography a tube is filled with the material constituting the stationary phase plus a solvent
define modes or techniques for chromatographic separationin practice chromatographic separation may take one of these modes or techniques paper
define ion exchange chromatographyin this method a reversible exchange of ions is effected usually resins and ionic solutes are the two components
define exclusion chromatography - basic separation techniqueit is a chromatographic process in which separation of the sample components takes place
define partition chromatography - basic separation techniqueit is a technique in which separation is achieved as a consequence of the relative
define adsorption chromatography - basic separation techniqueadsorption is surface interaction and is by number of forces between surface atoms of
define classification of chromatography - basic separation techniquechromatography can be classified depending upon physiochemical principlesfactors
define popularity of chromatography - basic separation techniquechromatography is popular becausea minute quantities can be analysed qualitatively
define chromatography - basic separation techniquechromatography is the most effective technique for the separation purification and identification
define general procedure of titration - nutritional biochemistryin general a titration requires that we add precise amounts of the known titrant
define standardization - nutritional biochemistryone of the substances involved in a titration must be used as a standard for which the amount of
equivalence point and end point - nutritional biochemistrytitrimetric analysis volumetrically measures the amount of reagent often called a
define about the types of indicatorsthe various types of indicators used arei acid-base indicatorsii redox indicatorsiii metal ion indicatorsiv
define about the term indicatorsthe easiest way to determine when the reaction is complete is by using indicators an indicator is a compound that has
define the determination of completion of reaction several methods are used to determine when the reaction is complete some of these includea
define the type of chemical reaction used in volumetric analysisthe titration has to be based on some rapid chemical reaction although any type of
define types of quantitative analyses in nutritional biochemistrymethods of quantitative analysis broadly there are two types of quantitative
define the quantitative analysis in nutritional biochemistryquantitative analysis involves the measurement of the amount of a substance present this
define the qualitative technique in nutritional biochemistryin this manual you will be familiarized with simple qualitative techniques and tests to