The analytical method for serum selenium (Se) is based on inductively coupled plasma mass spectrometry (ICP-MS) using matrix-matched calibration standards. In this method, Se (isotope mass 78 and/or mass 80), and gallium (mass 69) are measured in serum by inductively coupled plasma dynamic reaction cell spectrometry using methane as reaction gas. Strict adherence to quality control (QC) procedures outlined in the Protocol Text is recommended. Controls should be run at the beginning of the day, and then one control analyzed again after approximately each 10 patient samples, and then all QC controls are run at the end of each day's run. Agreement with certified or accepted QC values should be within the +2 S.D. limits.
status
ACTIVE
Fully-Specified Name
component
PhenX - selenium protocol 050901
property
-
time
Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
system
^Patient
scale
-
method
PhenX
Additional Names
short name
Pan; Panel; PANEL.PHENX; Panl; Pnl; Point in time; Random; SE
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