Answer Posted / tushar

buffer is used to maintain ph of respective solution.

Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

1416

---

what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

1921

---

How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

4150

---

In rs method development when we are going area normalization method to dilute standard method?

1474

---

In Assy by potentio metry titration method how select MET U ,DET U, SET U,

2070

---

Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

2829

---

why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?

1643

---

what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

4420

---

What is the diffrence in japan mkt requirement in analytical method validation over US?

673

---

how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2529

---

In which situation we require to prepare the standard solution from sample in Related substance method?

711

---

Why we use potassium dichromate in uv calibration Exact reason behind it??

1188

---

how will you do the prep for unstable componds?

1973

---

why we should take dst factor for below 1%moisture samples

2612

---

Please give idea about method development for cleaning method and how maco level establish

694

---