What is the difference between ROI & sulphates ash?

What is the difference between ROI & sulphates ash?..

Answer / b.gangatharan

There is no difference b/w procedure,both are same. In Indian pharmacoepia it is called as ROI and in USP called it as sulphated ash.both are used for determination of content of inorganic mater in organic substance.

Is This Answer Correct ?    1 Yes 0 No

Post New Answer

More Analytical Chemistry Interview Questions

In GC Why does retention time decrease when temperature increases? Also how does a change in temperature effect selectivity?

1 Answers   Gland Pharma,

Why PH range from 0to14.

2 Answers   Reddy Labs, College School Exams Tests, Wings Customer Care,

What is descriminatory disolution medium ?

3 Answers   Cipla, Graviti Pharmaceuticals,

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

0 Answers  

key components in hplc?

3 Answers   Laurus,

How to Calibrate NMR instrument ?

1 Answers   Reddy Labs,

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

0 Answers  

how to hplc calibrated

4 Answers   Glochem, Dr Reddys,

differnc btw c18 and c-8 column

3 Answers   Cipla,

which solution used for detecting factor of k.f.titroter except water

3 Answers  

what is the diference between spectroscopy and chromatography

2 Answers   Cipla, PharmChem, Reliance,

in HPLC injection volume is increase ,R.T will increase ?

5 Answers   Claris Lifesciences,

  • Organic Chemistry Interview Questions Organic Chemistry (288)
  • Inorganic Chemistry Interview Questions Inorganic Chemistry (113)
  • Analytical Chemistry Interview Questions Analytical Chemistry (1215)
  • Physical Chemistry Interview Questions Physical Chemistry (62)
  • General Chemistry Interview Questions General Chemistry (300)
  • Chemistry AllOther Interview Questions Chemistry AllOther (77)