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How do you prepare Dragendorff's Wagner's and mayer's reagents reagent?
(Wagner's reagent is used to test for alkaloids). To prepare Wagner's reagent; Dissolve 2g of iodine and 6g of KI in 100ml of water. -Atolani Olubunmi, Nigeria
What is the mechanism of action of lipid soluble hormones?
activation of mRNA, which increases protein synthesis in the cell
What are uses of nimbin in alkaloids?
nimbin is plant
How do you prepare hager reagent?
It is the Saturated solution of Picric Acid and is used to test the presence of alkaloids. Alkaloids give yellow ppt. with Hager's reagent.
Which mechanism is important for the digestion of fat in foods?
bile in the small intestine emulsifies the fat for enzyme action
What is dragendorff?
A solution of potassium bismuth iodide. It is used to determine the presence of alkaloids.
What is the positive result for Dragendorff's test?
When Dragehdorrf"s reagent is used for the detection of Alkaloids, the production of red-orange-brown precipitate is a "positive test" and it means the presence of alkaloids is confirmed.
What is the mechanism of reaction between Wagner's reagent and alkaloids?
what is the reaction mechanism between wagner's reagent and alkaloids
Why does Dragendorff's reagent form a yellow precipiate with alkaloids?
Well, in order to understand the reaction, you will need to know that mostly all alkaloids are precipitated from neutral or even slightly acidic solution when added to the reagent. When it is added it will turn cream colored.
What is the mechanism of the reaction between mayer's reagent and an alkaloid?
[HgI4]-(aq) reacts with the lone pairs of nitrogen that are present, then the typical off-white precipitate falls out. A uncharged mercury salt is thus obtained. In some alkaloids there isn't a reaction with Mayer's reagent because it lacks lone pairs (example berberine) and it reacts also with alkaline peptides. This mechanism is actually similar then Dragendorff's reagent.
When was Hans Dragendorff born?
Hans Dragendorff was born in 1870.
When did Hans Dragendorff die?
Hans Dragendorff died in 1941.
What are four categories of chemotherapy drugs and describe their mechanism of action?
what are four categories of chemotherapy drugs and describe their mechanism of action..
What is the chemical composition of Dragendorff's reagent?
What is the chemical composition of Dragendorff's reagent?Read more: What_is_the_chemical_composition_of_Dragendorff's_reagent
How do ants get alkaloids if alkaloids are from plants?
There are many species which sequester alkaloids from plants, usually as a self-defence mechanism. Absorption of alkaloids by such species will usually render the organisms unpalatable largely because of the bitter taste that results. Certain ant, caterpillar, mite, frog, etc. species extract - and possibly metabolise - plant alkaloids to synthesise new ones or may simply secrete those absorbed during feeding on plants containing them.
What is the Mechanism of action of tiemonium methylsulphate?
+mechanism of action of tiemonium methylsulfate
What is mechanism of action eclipta Alba as hepatoprotective?
What is mechanism of action eclipta Alba as hepatoprotective?
