Method of Analysis by the U.S. Geological Survey California District Sacramento Laboratory-- Determination of Dissolved Organic Carbon in Water by High Temperature Catalytic Oxidation, Method Validation, and Quality-Control Practices

By Susan M. Bird, Miranda S. Fram, and Kathryn L. Crepeau

U.S. GEOLOGICAL SURVEY

Open–File Report 03-366

Sacramento, California 2003

Complete accessible text of report (665 KB PDF)

To view PDF documents, you must have the Adobe Acrobat Reader (free from Adobe Systems) installed on your computer.
(download free copy of Acrobat Reader).

Abstract

An analytical method has been developed for the determination of dissolved organic carbon concentration in water samples. This method includes the results of the tests used to validate the method and the quality-control practices used for dissolved organic carbon analysis. Prior to analysis, water samples are filtered to remove suspended particulate matter. A Shimadzu TOC-5000A Total Organic Carbon Analyzer in the nonpurgeable organic carbon mode is used to analyze the samples by high temperature catalytic oxidation. The analysis usually is completed within 48 hours of sample collection. The laboratory reporting level is 0.22 milligrams per liter.

CONTENTS

Abstract

Introduction

Method of Analysis of Dissolved Organic Carbon in Water (Parameter Code 00681) by High Temperature
Catalytic Oxidation (U.S. Geological Survey Method Number O-2201-04)

Scope and Application

Summary of Method

Equipment and Materials

Sample Collection, Filtration, and Storage

Standards

Carbon Analyzer Performance

Data Processing and Archiving

Difficult Samples

Method Validation

Precision

Method Detection Limit and Laboratory Reporting Level

Method Performance Evaluation

Quality-Control Practices

Blank Samples

Duplicate Samples

Calibration Verification

Standard Deviation and Coefficient of Variation

Maintenance and Corrective Actions

Summary

References Cited

Document Accessibility: Adobe Systems Incorporated has information about PDFs and the visually impaired. This information provides tools to help make PDF files accessible. These tools convert Adobe PDF documents into HTML or ASCII text, which then can be read by a number of common screen-reading programs that synthesize text as audible speech. In addition, an accessible version of Acrobat Reader 5.0 for Windows (English only), which contains support for screen readers, is available. These tools and the accessible reader may be obtained free from Adobe at Adobe Access.

AccessibilityFOIAPrivacyPolicies and Notices
U.S. Department of the Interior, U.S. Geological Survey Persistent URL: http://pubsdata.usgs.gov/pubs/of/2003/ofr03366/text.html Page Contact Information: USGS Publishing Network Last modified: Saturday, January 12 2013, 11:16:38 PM

---