Page 72 - Illustrated Pocket Dictionary of Chromatography

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Both columns are manufactured from stainless steel, but the endfitting on the left
terminates as a “male” union and that on the right as a “female” union.

Two “female” column endfittings are shown in an exploded view. The top column
uses a single-piece ferrule and a plastic-encased frit. The bottom column uses a
two-piece ferrule and a plain frit.

error An estimate of the range around a result within which the true
value lies. In essence,

x true = x eperimental ± error

error, absolute The difference between the experimentally
obtained result, x, and the true result, X:

absolute error = X - x
error bar A line through each plotted result that estimates the
range within the expected value lies. An error bar should be gener-
ated for every parameter that has an error associated with it.
However, it is assumed that the independent variable has negligible