Ralph Obenauf


Matrix Effects in ICP-AES Analysis

September 01, 2007

SPEX CertiPrep, Inc.

Trace Elements in Fish and Fish Oil Supplements

March 01, 2007

SPEX CertiPrep, Inc.

A Statistical Approach to Reporting Uncertainty on Certified Values of Chemical Reference Materials for Trace Metal Analysis (PDF)

September 01, 2002

The authors discuss an approach by a manufacturer of calibration standards and certified reference materials to standardize the reporting of uncertainty associated with certified values quoted on a certificate of analysis.