Grade 12Physical Chemistry
gold number of haemoglobin is 0.03,what is meant by this statement?
gold number of haemoglobin is 0.03,what is meant by this statement?
3 Answers
DILIP
When a lyophilic sol is added to a lyophobic sol, the sensitivity of the latter towards electrolytes is altered. Some lyophilic sols enhance the stability of the lyophobic sols and render them less sensitive towards electrolytes. The protective effect of a lyophilic sol is different for different lyophobic sols. Zsigmondy set up a standard by which the protective capacity can be expressed. It is known as gold number. The gold number of a lyophilic sol is the amount (in mg) of the dispersed phase of the lyophilic sol (in dry condition) which ought to be added to a 10 cm standard gold sol (0.0053%-0.0058%) to prevent it from turning to blue (from red) upon the addition of 1 cm of a 10% solution of sodium chloride.
Gold number of haemoglobin is 0.03 , this means 0.03 mg of haemoglobin should be added in 10 cm standard gold sol (0.0053%-0.0058%) to prevent it from turning to blue (from red) upon the addition of 1 cm of a 10% solution of sodium chloride.
Umakant biswal
dear argha
Gold Number is a term used in colloidal chemistry. It is defined as the minimum amount of protective colloid in milligrams which prevents a color change from red to violet of 10ml gold sol by the addition of 1 ml of 10%NaCl solution.
so, relate that with the value of haemoglobin .
hope it clears
regards
Gold Number is a term used in colloidal chemistry. It is defined as the minimum amount of protective colloid in milligrams which prevents a color change from red to violet of 10ml gold sol by the addition of 1 ml of 10%NaCl solution.
so, relate that with the value of haemoglobin .
hope it clears
regards
Pallab Nandi
This means 0.03 mg of haemoglobin should be added in 10 cm standard gold son (0.0053%-0.0058%) to prevent it from turning from red to blue upon the addition of 1cm of a 10 %solution of sodium chloride.
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