By Long on Monday, July 19, 2004 - 08:36 pm:

Hello,did anybody heard before the method to determin LOD via calibration curve? How to do this?

Thanks

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By vijay on Tuesday, July 27, 2004 - 05:08 am:

Mr. Long,
from the linearity curve find out residual standard deviation and slope.
Now one can derive

LOD = 3.3*residual stdandard deviation / slope.

LOQ = 10*residual stdandard deviation / slope.

FOR finding out resdiual standard deviation one can use MS-EXCEL application. for the selected two sets of variables follow =styex(Y1:Yn, X1:Xn).

i hope this may give some details about your query.

regards
vijayaragavan.v.l.
chennai, India.