found a couple of reference ranges for selenium, and conversion info:
0.90 to 2.00 µmol/L
1.02 to 1.91 µmol/L OR 80 to 150 µg/L (molecular weight of Se is 78.96)
sources:http://www.trace-elements.org.uk/trace- ... /selenium/
0.2 to 0.9 µmol/L (0 to 2 years)
0.5 to 1.3 µmol/L (2 to 4 years)
0.7 to 1.7 µmol/L (4 to 16 years)
0.9 to 2.0 µmol/L (Adults)
< 0.3 µmol/L (in adult) - supplementation may be required
> 2.5 µmol/L (in adult) - possible toxicityhttp://www.annals.org/cgi/content/full/ ... 70-00228v1
Selenium Toxicity: A Case of Selenosis Caused by a Nutritional Supplement 17 June 2008 | Volume 148 Issue 12
Background: Selenium is a nonmetal element that serves vital roles in normal physiologic function. Substantial toxicity can occur with excessive selenium consumption...
Objective: To describe the clinical features of a patient with selenium toxicity after ingesting Total Body Formula Peach Nectar liquid supplement with a selenium formulation error.
...The supplement’s stated ingredients included multiple vitamins and trace minerals and elements, including selenium.
...Her serum selenium level was markedly elevated at 534 µg/L (6.76 µmol/L) (reference range, 80 to 150 µg/L [1.02 to 1.91 µmol/L]). Her spot urinary selenium level was also elevated at 220 µg/L (2.79 µmol/L) (reference range, <150 µg/L [<1.91 µmol/L])
22-11-2011 update: conversion info (04-2013 update - need to revisit this. why is the analyte zinc??)
Reference Range, Conventional: 58-234
Conventional Unit: mg/L
Conversion Factor (Multiply by): 0.0127
Reference Range, SI: 0.74-2.97
SI Unit: mmol/L