Resolution (Usp, Astm) R - Agilent Technologies 8453 Operator's Manual

Resolution (USP, ASTM) R

(Pertaining to peaks a and b, T
Tangent method (USP, ASTM):
5 Sigma method:
Half-width method (Resolution used in Performance Report):
Statistical method:
where:
M1
W
W
W
W
also
Understanding Your Agilent ChemStation
= mean retention time for peak x (1st Statistical Moment) [min]
(x)
= base width for peak x [min]
B(x)
= width at 4.4% height for peak x [min]
4.4(x)
= width at 50% height for peak x [min]
50(x)
(x) = width derived from statistical moments =
S
"Statistical Moments"
of peak a < T
R R
on page 244)
Evaluating System Suitability
Performance Test Definitions
of peak b; T in min)
R
for peak x [min] (see
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