how calculate column dead volume in hplc ?

Answer Posted / subash

we know that K= tr-to/to......1

to=vm/F
where Vm=Volume of mobile phase inside the column
F= Flowrate

Vm= 0.5Xsuare of col diameter(cm)X column lenght(cm)
For a 150mm*4.6mm
Vm=0.5*0.2116*15
Vm=1.587 mL

Is This Answer Correct ?    10 Yes 6 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

702


Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

2136


from where i get mortar pastle for glass bottle crush? it's required for testing of it?

1730


what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?

336


what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

8428






how can give the expiry period and restadardisation of volumetric solution

2047


why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?

2341


why require the ph, buffer during hplc mobile phase?

401


How can I develope method of dissolution by HPLC OR UV

1893


what is definition of validation? which components are followed give detail?

1827


pharma industries oriented

1685


What is rs test why we are performing rs test?

1301


4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

2150


Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

2387


Principle of single pan analytical balance

4598