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Articles by Ralph Obenauf

Matrix Effects in ICP-AES Analysis

ByRalph Obenauf,Vanaja Sivakumar,Laszlo Ernyei
September 1st 2007

Application Notebook

SPEX CertiPrep, Inc.

Trace Elements in Fish and Fish Oil Supplements

ByRalph Obenauf,Vanaja Sivakumar,Bill Driscoll
March 1st 2007

Application Notebook

SPEX CertiPrep, Inc.

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

ByNimi Kocherlakota,Ralph Obenauf,Robert Thomas
September 1st 2002

Spectroscopy

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.

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Latest Updated Articles

  • Trace Elements in Fish and Fish Oil Supplements
    Trace Elements in Fish and Fish Oil Supplements

    March 1st 2007

  • Matrix Effects in ICP-AES Analysis
    Matrix Effects in ICP-AES Analysis

    September 1st 2007

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

    September 1st 2002



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