Answer Posted / radheraman singh

Selection of methanol in Kf having following reason.
1 prevent the side reaction between pyridine and SO2.
2 Many compound are soluble in MeOH.
3 MeOH not absorbed moisture and having very less water content.

why octanol used to determine the partition coefficient ?

2397

---

if peak get problamatic then what require to do?

741

---

What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

8807

---

function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2609

---

what is mean by dissolution hydrodynamics?

776

---

in which situation require to take incident in validation?

1651

---

In performance Check of GC Why Hexadecane Peak is Considered 

2986

---

Why sodium hydroxide used for maintain pH of phosphate buffer

2331

---

Many times I don't got a caffeine peak in calibration of hplc using guard column ❓

1743

---

How to choose the which salt is suitable for mobilephase

3175

---

what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

3630

---

on the basis of bcs class how to proceed the solubility?

698

---

what type of question will ask in the interview of lab chemist.

3261

---

Why to use propyl paraben in HPLC gradient calibration

7319

---

what is mean by 40 in the dissolution basket mesh size?

715

---