Interested to Buy Any Domain ? << Click Here >> for more details...
Why sulfuric acid is used in sulphated ash / residue on
ignition test.
- 9 Answers
- 78607 Views
- CS Pharmaceuticals, Dr Reddys, GVK, HPLC, Micro Labs, Samrudh, Watson Pharmaceuticals, Wings Customer Care, I also Faced
- E-Mail Answers
Answer Posted / dilip m patil
1)The gravimetric technique is used to perform the residue
ignition test or sulphated ash test. The residue obtained
after sulfuric acid treatemnt is chemically and thermally
stable and it fulfiles principles of gravimetric analysis
techique.
2)The residue obtained without use of sulphuric acid are
sensitive to carbon dioxide and moisture present in lab.
atomosphere. Hence the residues composition changes and
ultimately mass of residues changes during final weighing
of residue and the accuracy and precision of test will be
questionable.
| Is This Answer Correct ? | 51 Yes | 6 No |
Post New Answer View All Answers
if tech transfer fails whay require to do?
Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
why require to add enzymes in capsules dissolution only? is it require to tablet also?
IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?
If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?
HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.
4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations
If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?
We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?
How will u perform degradation study in detectors other thann PDA in HPLC Methodology
what is biorelivent dissolution media?
In rs method development when we are going area normalization method to dilute standard method?
What is related substance by HPLC impurity limits as per USP?
How to choose the which salt is suitable for mobilephase
Colorimtry
