Why sulfuric acid is used in sulphated ash / residue on
ignition test.
Answer Posted / r.kadambavadani
To convert the inorganic metals into metal sulphates very easily.
Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
what is %labelled amount in content uniformity of dosage unit and its calculation?
if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?
What is diffrence between extractable volume and deliverable volume? Answer pls
how we can identify the impurity is coming below loq at transfering site?
why we should take dst factor for below 1%moisture samples
What is similarity factor?
how can give the expiry period and restadardisation of volumetric solution
on saturation solubility study data how we can find out the bcs class of drug?
What is viod volume and peak purity in HPLC?
how will you do the prep for unstable componds?
How to calculate coreletion coefficient
How to start the dissolution development for unknown tab?
My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards
what is partion and column chromatography
about method developement in hplc