According to ICH,India is coming under which climatic zones?

1 Answers   Cipla,

---

Dear Sir, This is Thirunavukkarasu am working in Ordain Health Care AR&D, Am Having one problem While doing method development my question Metadoxine and Pyridoxine same chemical nature and structural activity i tried lot of methods but Analyte eluted same Retantion time i cant separate both peaks. solubility, pH both are same only only difference melting point metadoxine 210 C Pyridoxine 102 C please do the help needful for me

5 Answers   Ordain Solutions,

---

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

0 Answers  

---

Why used 0.02% v/v solution of toluene in hexane for calibration of UV.

3 Answers  

---

How to calculate the maximum loaded sample concentration in HPLC column?

2 Answers  

---

---

Why do we need GC instead of HPLC? or Why do we need HPLC instead of GC?

4 Answers  

---

What is the difference between Paddle and Basket Why we are using Basket or paddle in dissolution.

7 Answers   Apotex, Cipla, GSK, Intas, Zydus Cadila,

---

only one end point is possible for citric acid and we get 2 end points for di acid why?

3 Answers   Reddy Labs,

---

why we are used 4,7,9,2 buffers for the ph calibration

4 Answers   Aurobindo, Enaltec Labs,

---

How to calibration of the uv spectroscopy and its test?

0 Answers  

---

why multimedia dissolution require to do?

0 Answers  

---

how can we calculate void volume?give its importance in brief

1 Answers   Natco,

---