Answer Posted / ganesanc

Dissolution constant priciple of water,
7-(-7) = 7+7 = 14

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 ?

3669

---

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

792

---

What is gelatinization?

1619

---

In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

1973

---

about method developement in hplc

1722

---

what is mean by dissolution biowaiver study?

934

---

A ha tc is actual defination of retention time?

1617

---

Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

1917

---

how you start RS method development when for new product?

723

---

why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

2299

---

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

1781

---

Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

2965

---

is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

2174

---

EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

2637

---

What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

1900

---