Determination of nitrate and nitrite by continuous liquid-liquid extraction with a flow-injection atomic-absorption detection system

1986 ◽  
Vol 323 (1) ◽  
pp. 50-53 ◽  
Author(s):  
Mercedes Gallego ◽  
Manuel Silva ◽  
Miguel Valcárcel
Keyword(s):  
Atomic Absorption ◽  
Flow Injection ◽  
Detection System ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Nitrate And Nitrite

Atomic Absorption Spectrophotometry: Determination of Chromium in Plants

1975 ◽  
Vol 58 (3) ◽  
pp. 433-435
Author(s):  
Earle E Cary ◽  
Oscar E Olson
Keyword(s):  
Atomic Absorption ◽  
Biological Materials ◽  
Atomic Absorption Spectrophotometry ◽  
Liquid Extraction ◽  
Absorption Spectrophotometry ◽  
Wet Digestion ◽  
Liquid Liquid Extraction ◽  
Chromium Recovery

Abstract A previously reported method for the determination of chromium in plants and biological materials has been simplified. The method, which involves wet digestion, isolation and concentration of chromium by liquid-liquid extraction, and final determination by atomic absorption spectrophotometry, is sensitive to about 20 ng chromium. Recovery studies and analysis of standard materials show that this method is reliable.

Sign in / Sign up

Export Citation Format

Share Document