How do I calcuate an IC50 from analyze it?

[jc33]

[Fred Smith]

First you need to tell us what IC50 is.

--
Regards,
Fred


"jc33" <[email protected]> wrote in message
news:[email protected]...
>

[Gary''s Student]

Create a simple table of two columns. The first column could be the
concentration in the desired units i.e. micrograms per litre. The second
column could be the inhibitory effect from 0% to 100%. Then you can use
VLOOKUP() to find the approximate 50% level.
--
Gary''s Student


"Fred Smith" wrote:

> First you need to tell us what IC50 is.
>
> --
> Regards,
> Fred
>
>
> "jc33" <[email protected]> wrote in message
> news:[email protected]...
> >
>
>
>

[jc33]

Can you please define each paramater that needs to be entered?
lookup_value
table_array
col_index_num
range_lookup

"Gary''s Student" wrote:

> Create a simple table of two columns. The first column could be the
> concentration in the desired units i.e. micrograms per litre. The second
> column could be the inhibitory effect from 0% to 100%. Then you can use
> VLOOKUP() to find the approximate 50% level.
> --
> Gary''s Student
>
>
> "Fred Smith" wrote:
>
> > First you need to tell us what IC50 is.
> >
> > --
> > Regards,
> > Fred
> >
> >
> > "jc33" <[email protected]> wrote in message
> > news:[email protected]...
> > >
> >
> >
> >

[Dave Peterson]

You could look at Debra Dalgleish's site:
http://www.contextures.com/xlFunctions02.html

It might help with the questions caused by excel's help for =vlookup().

jc33 wrote:
>
> Can you please define each paramater that needs to be entered?
> lookup_value
> table_array
> col_index_num
> range_lookup
>
> "Gary''s Student" wrote:
>
> > Create a simple table of two columns. The first column could be the
> > concentration in the desired units i.e. micrograms per litre. The second
> > column could be the inhibitory effect from 0% to 100%. Then you can use
> > VLOOKUP() to find the approximate 50% level.
> > --
> > Gary''s Student
> >
> >
> > "Fred Smith" wrote:
> >
> > > First you need to tell us what IC50 is.
> > >
> > > --
> > > Regards,
> > > Fred
> > >
> > >
> > > "jc33" <[email protected]> wrote in message
> > > news:[email protected]...
> > > >
> > >
> > >
> > >

--

Dave Peterson