What is primary & Secondary Standard ? Give Example

Answer Posted / aatika firdous

Primary standard is a compound of sufficient purity from which standard solution of known normality can pe prepared by direct weighing of it and diluting to a defined volume of solution

Is This Answer Correct ?    5 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Which parameter require to do for analytical method equivalency?

326


in stress study if your api not soluble in hcl naoh h2o2 then what require to do?

342


Why dissolution test is not performed in all of the products

2044


How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

2060


why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

8929






what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

2232


In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

1465


What is third generation HPLC Columns?

1517


what is mean by covalidation

325


WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

1622


from where i get mortar pastle for glass bottle crush? it's required for testing of it?

1743


What is split ratio in Gc? Splitless? how requirr to select?

329


in hplc chromatogram started from left to right and in uv spectrum started from left to right

474


is it nessesary to do solution stability for 7 days?

322


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

3112