what is classification of elemental impurities? what is risk assement in elemental impurities?

0 Answers  

---

if relative response factor is 1.07, to select how much value

1 Answers   Natco,

---

If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?

0 Answers  

---

How will u perform degradation study in detectors other thann PDA in HPLC Methodology

0 Answers   Adley, Micro Labs,

---

In UV-VIS spectrophotometer:My diluent is methanol even though i corrected base line for methanol,In my sample scan i found methanol peak.what is the reason?

2 Answers  

---

---

A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?

2 Answers  

---

If we have a kc is1*10^8 and the .kp 2*10^5 of reaction A------->B C------->D what is the volume of C?

0 Answers  

---

water is more polar than acetonitrile.but in reverse phase chromatography peaks elute earlier when we increse Acetonitrile.what is the reason.

10 Answers   Matrix,

---

Why forced degradation studies are performed in hplc method validation?

6 Answers   Apex,

---

in hplc chromatogram started from left to right and in uv spectrum started from left to right

0 Answers  

---

why we want incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ? What is the use to incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ?

1 Answers  

---

Did anybody have method for acetyl cysteine effervescnce tablet

0 Answers  

---