Accession Number : AD0730482

Title :   A Practical Manual for Use of the Technicon (Trade Name) Autoanalyzer (Trade Name) in Seawater Nutrient Analyses; Revised.

Descriptive Note : Technical rept.,

Corporate Author : OREGON STATE UNIV CORVALLIS DEPT OF OCEANOGRAPHY

Personal Author(s) : Atlas,Elliot L. ; Hager,Stephen W. ; Gordon,Louis I. ; Park,P. Kilho

Report Date : SEP 1971

Pagination or Media Count : 55

Abstract : The manual describes the AutoAnalyzer system in use at Oregon State University. There are three chapters: Analyses; Components and construction principles; and an Abbreviated Troubleshooting Guide. In the section on analyses, procedures for the automated analysis of silicate, nitrate and nitrite, and phosphate are described. The analyses described generally show a coefficient of variation of about 1% under good operating conditions. The silicate analysis usually has a linear response (1%) up to an absorbance of about 1. The nitrate-nitrite analysis displays a deviation from linearity when the absorbance exceeds about 1. The phosphate analysis is linear at least up to a concentration of 7.5 micrometers. Discussions of interferences, salt error, comparison of automated vs. manual analysis, and data treatment are included for each analysis. (Author)

Descriptors :   (*SPECTROPHOTOMETERS, INSTRUCTION MANUALS), (*NUTRIENTS, SEA WATER), (*SEA WATER, *COLORIMETRIC ANALYSIS), SILICATES, NITRATES, PHOSPHATES, CONSTRUCTION, AUTOMATIC, STANDARDS, SALINITY, ERRORS, CHEMICAL ANALYSIS, ERRORS, INTERFERENCE

Subject Categories : Physical and Dynamic Oceanography
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE