Elemental analysis

Question 1

Describe the principle of elemental analysis

Answer 1

weigh small amount of compound, burn it, capture all elements as suitable oxides, measure amount of each oxide present and calculate % of each element in drug sample then evaluate whether the analytical results matched

Question 2

What are the most common types of EA?

Answer 2

carbon, hydrogen and nitrogen (CHN analysis)

Question 3

What is the acceptable percentage error to be confident that it is the right and pure drug?

Answer 3

± 0.3%