Why sulfuric acid is used in sulphated ash / residue on
ignition test.

Answer Posted / ravi teja

To convert the inorganic metals into metal sulphates.

Is This Answer Correct ?    110 Yes 11 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

if content uniformity passing but dissolution varrying then what is next step?

375


pharma industries oriented

1679


in which situation require to take incident in validation?

731


if instrument calibration fails then what require to do?

453


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?

1445






What is viod volume and peak purity in HPLC?

2330


on the basis of bcs class how to proceed the solubility?

269


How we choose the mobile phase for method development.?

646


why holium oxide prepared in 10% HCLO4 SOLUTION

988


why salisylic acid not using now days for disdolution calibration?

293


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

8894


how require to set assay concentration for standard and sample?

355


What is the calibration of uv process and preparation

1492


What is intact assay method development.....?

1996


how we can identify the impurity is coming below loq at transfering site?

376