Why sulfuric acid is used in sulphated ash / residue on
ignition test.
Answer Posted / mrutyunjay tripathy
Sulphuric acid is a strong oxidising agent which oxidises
the carbon present in the organic samples resulting CO2 &
H2O and converts the metals into their sulphates which can
be easily extracted to perform the heavy metal test.
Is This Answer Correct ? | 28 Yes | 3 No |
Post New Answer View All Answers
If combination product how require to identify which imp is of which api?
How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?
What is the requirement for brazil in the analytical method vslidation comparr to ich?
If vendor having more imp than monograph then how to proceed? and how to set spec?
How you develop a method in HPLC?
What is aggregate and fragments in SEC?
What is Band broading effect explain
In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )
How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?
If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?
how you fix the limits of impurities?
how to calibrate hplc & gc
CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?
how to calculate elemental impurities?