Answer Posted / kizar ahamed

Non polar compounds having low dielectric
constant .according to the above list

acetonitrile = 36.6

DMF = 38.3

METHANOL =33

THF =7.52

Based on the above dielectric constant , DMF is the
polar solvent.

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

2270

---

Which parameter require to do for analytical method equivalency?

788

---

what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3671

---

what is mean by ambient temperature?

926

---

what is turbidimetric titration?Give 2 examples.

2678

---

How we can identify process related and degradation impurity in single method with short period?

829

---

Basic principle of ESI?

2156

---

If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately

864

---

Why to use propyl paraben in HPLC gradient calibration

7499

---

in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?

845

---

What is delay volume?

1399

---

How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

2588

---

if instrument calibration fails then what require to do?

983

---

please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

1641

---

what is mean by peak intigrity?

962

---