What is primary & Secondary Standard ? Give Example
Answer Posted / anna
primary standard: is a reagent that is stable, pure, it is not hydrated and is of known concentration. for example, Na2CO3, NaCl etc
secondary standard: is a reagent that is unstabe and very reactive with atmosphere so, have not a conctant concentration. For example, NaOH, H2SO4, etc
| Is This Answer Correct ? | 136 Yes | 25 No |
Post New Answer View All Answers
WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY
How to calculate coreletion coefficient
what is partion and column chromatography
What is the formula for relative diffrence for standard solution in solution stability in validation?
Why irmoisture balance is used for corrugated box moisture testing
in stress study if your api not soluble in hcl naoh h2o2 then what require to do?
How do we fix the sample concentaryion in hplc method development. What is the basis?
What is diffrence between extractable volume and deliverable volume? Answer pls
what is the origin to prepare standard operating procedure
what is third integration
which batch require to use for analytical method validation?
Tell me something about Vitamin A test method by HPLC
what is mean by extactable and leachable study?
How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?
how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,