Answer / somala suresh reddy

PDA is multi wavelength Range Fixed and variable spectrophotometers select a single
wavelength of light to pass through the sample

Answer / merra vali

PDA - Photo diode array detector

UV- Ultra violet detector

UV used in regular analysis for single nm. where as PDA is useful in method development by injecting single sample we can find peak purity

Answer / ajinkya p.

In pda detector light from UV & D2 both combination first passes from flow cell & then grating so we get array of light so we check absorption for each wavelength And also facility to calculate peak purity ( if there any hidden peak behind the interested peak)because pda has 3D view. In UV detector light from uv first fall grating & then flow cell, and we can put only known single or double wavelength at a time to analysis. this is the diff. between pda & uv detector.

What is the principle of hplc detectors like.. UV detector,flurosence detector, RID?

0 Answers   Cipla,

---

what is mean by 21 CFR PART? In that what is 21 ?

1 Answers  

---

what is end capping in hplc coulmn

2 Answers   Lupin, Zydus Cadila,

---

what is specificity?

4 Answers   Amneal Pharmaceuticals, Aurobindo,

---

WHY KBr is used in IR Spectroscopy

3 Answers   GVK,

---

signifcance of detector lenearity in calibration f hplc

3 Answers  

---

which situation gc hs and gc als require to use?

0 Answers  

---

difference between precision & accuracy.

1 Answers   Laurus,

---

Whya the need of Specificity to do in Analytical Method Validation ?

5 Answers   Dr Reddys,

---

[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

0 Answers  

---

why don't we call POH meter? As we all as PH meter

4 Answers   Aurobindo,

---

why 6 tablets use for dissolution

1 Answers   Cadila, IPCA, SUN, Teva Pharmaceuticals,

---