in gas chromatography what is the difference between gas flow rate and average linear velocity ?
USV,
1944Through assay by hplc(anhydrous basis) product got 100.8% .How much the potency of that product.Moisture content is 1.7%,Sulfated ash is 0.02%,Total impurities are 0.3%
2 5453what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means
1496In gas chromatographic analysis sometimes we use headspace, why it is required instead of manually injection?
1 4021Post New Analytical Chemistry Questions
in OSD forms require to use gas chromatography?
Why potassium dichromate is used in calibration of uv?
what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR
In performance Check of GC Why Hexadecane Peak is ConsideredÂ
What should be the level/ Percentage of Arsenic in Arsenic free zinc.
if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?
Why dissolution test is not performed in all of the products
Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...
what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me
Why to use propyl paraben in HPLC gradient calibration
what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?
How require to perform linearity as per ANVISA? What are the acceptance criteria?
inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?
why does used dry caffien in HPLC calibration?
how to qualify the impurity?
