Hexavalent Chromium (CrVI) Field Analytical Method for Bioenvironmental Engineers
Abstract
The Industrial Hygiene Branch, in a collaborative effort with the National Institute for Occupational Safety and Health (NIOSH), developed a field analytical method to measure hexavalent chromium (CrVI, chromate) levels in air. The method uses ultrasonic extraction of sampling filters, solid-phase extraction of chromates from the extracted solution, and determination of chromate concentrations by spectrophotometry. It is an alternative to NIOSH Methods 7300 and 7600 and overcomes some of the disadvantages of these methods. The chromate field method is relatively easy to use, specific for CrVI, has a lower detection limit than NIOSH 7600, and allow analysis before there is a chance for significant sample degradation. The method is intended for use by Bioenvironmental Engineers. Although all Bioenvironmental Engineering shops will benefit from use of the method, those shops that take a lot of chromate samples or have significant chromate exposure problems will derive the most benefit from the method.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1999
- Accession Number
- ADA366806
Entities
People
- Ellen C. England
- Gary N. Carlton
- Joyce M. Reichert
- Kurt Greebon
- Linda Chaloux