what is reverse phase chromarography&normal phase chromatography

4 Answers   Aurobindo,

---

function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

0 Answers   DRL,

---

how much wave length of Soduim vapour lamp used in polarimeter

2 Answers   Reddy Labs, Torrent Pharma,

---

why we use only sucrose in the calibration of polarimeter?

7 Answers   Kilitch,

---

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

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

---

what is the definition of limit of stray light in UV calibration

1 Answers   FDC, Zydus Cadila,

---

why sucrose not used in polarimeter calibration?

2 Answers   Cipla,

---

How to calculate LOD & LOQ in HPLC Validation Method

14 Answers   Dr Reddys, GSK GlaxoSmithKline, Reddy Labs, Reliance, UIS,

---

When ever we perform system suitability,inject the corresponding standard 6 times why? is thair any reson

4 Answers  

---

which pharmacopeoia mentions that caffiene is used as a standard for HPLC calibration? which other standardscan be used for the same?

1 Answers   Hetero, Mylan,

---

USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...

0 Answers   Srini Pharmaceuticals,

---

How we get DST moisture 15.4-16.0%. what is the calculation or method behind it.

2 Answers  

---