stability study is going on up to 3years for famotidine-USP but the pharmacopeia is revised and tlc test is replaced with hplc test. At the 4th year frequency the product is failed in hplc test .how can i assain the expiry or retest date and can i stop or continue the programme?

2 Answers   Nakoda Chemicals,

---

What is difference b/t uv detector and rid

5 Answers  

---

Data was integrated with RRT CONCEPT OR Overlay with SSTchrmatogram concept which is better?

1 Answers  

---

How to establish relative response factor for hplc. Why it is required?

0 Answers  

---

wt is rsd in and explain

4 Answers   Cadila, Reddy Labs,

---

---

India is. Under which zone as per QF1.?

4 Answers   Acebright, Aurobindo, Gland Pharma,

---

we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion

0 Answers   Cipla,

---

Is sonication essential in solubility testing of a drug substance?

6 Answers   Aurobindo,

---

How can you prepare 0.1% Phosphate buffer solution?

6 Answers  

---

How to calibration of the uv spectroscopy and its test?

0 Answers  

---

Explain the relations between number of carbon atoms in alkanes and retention time ?

0 Answers   College School Exams Tests,

---

What is the difference between STANDARDIZATION and CALIBRATION of instrument like KF? why do we standardization of KF everyday? Why the KF factor being only 5.02 etc? 

5 Answers   AlpaMed, Vergo pharma research,

---