Answer / d pitchaiah

with tetramethyle silane

Why we use caffeine for HPLC calibration in Detector wave ength accuracy test

60 Answers   Arvind, Aurobindo, Cipla, Reddy Labs, Shasun Chemicals,

---

How can we Qualify a unknown impurity by HPLC

3 Answers  

---

If we have 5 strength which is not dose proportinate and excipients also diffrent in each strength then how we can proceed for Force degradation? and excipient are same but not dose propotinate the how FD?

0 Answers  

---

what is relationship between absorption and transmittance in u.v.?

11 Answers   Orchid,

---

How to Perform a Recrystallization ?

4 Answers  

---

What is the column performance and column efficiency?

2 Answers   Reddy Labs,

---

what is pK & pKa value

3 Answers  

---

acceptance criteria for ph meter, hplc detector,pump,injector,oven when we calibrate.

3 Answers  

---

please explain about aluminium hydroxide assay

0 Answers  

---

What are the parameters for the method development of Gas Chromatography and GC-HS? 

2 Answers  

---

WHAT IS THE USE OF STARTER ?????????

0 Answers   Sharp,

---

What is chiral and why this performing in HPLC

4 Answers   Hetero, Macleods,

---