Answer Posted / malyadri

Hplc is a adsorption chromatography ' we have elute the chromophoric nature and non volatile samples are suitable for hplc. Non volatile compounds are not suitable
GC analysis volatile nature compounds are suitable.

Principle of single pan analytical balance

5137

---

give clarity of linearity and range in method validation

2412

---

Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?

693

---

could negative ions be produced by bombardment process in mass spectrometry?

1770

---

what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3658

---

inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?

707

---

How to fix the sample conc. in Related substances test by HPLC?

1084

---

Difference between the quantitative analysis and qualitative analysis?

1161

---

In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

3021

---

Why six unit used for precision?

1338

---

What is mean by PDR?

934

---

If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?

767

---

What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

7531

---

using gradient pressure in gas chromatography are not ?using gradient pressure why

3382

---

what is the extinction coefficient for Indomethacin or at 319nm wave length.

4059

---