Slurry sampling for electrothermal atomic absorption spectrometric determination of chromium, nickel, lead and cadmium in sewage sludge

2001 ◽  
Vol 437 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Danuta Barałkiewicz ◽  
Jerzy Siepak
Keyword(s):  
Sewage Sludge ◽  
Atomic Absorption ◽  
Slurry Sampling ◽  
Lead And Cadmium ◽  
Atomic Absorption Spectrometric ◽  
Nickel Lead

scholarly journals Flow Injection/Atomic Absorption Spectrometric Determination of Zineb in Commercial Formulations of Pesticide Based on Slurry Sampling.

2002 ◽  
Vol 18 (11) ◽  
pp. 1253-1256 ◽  
Author(s):  
Ricardo J. CASSELLA ◽  
Verônica A. SALIM ◽  
Salvador GARRIGUES ◽  
Ricardo E. SANTELLI ◽  
Miguel de la GUARDIA
Keyword(s):  
Atomic Absorption ◽  
Flow Injection ◽  
Slurry Sampling ◽  
Atomic Absorption Spectrometric

scholarly journals Determination of Mercury in Sewage Sludges by Slurry Sampling Electrothermal Atomic Absorption Spectrometry

2002 ◽  
Vol 85 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Ignacio López-García ◽  
Mateo Sánchez-Merlos ◽  
Jesús Arroyo-Cortez ◽  
Manuel Hernández-Córdoba
Keyword(s):  
Atomic Absorption ◽  
Certified Reference Materials ◽  
Graphite Furnace ◽  
Electrothermal Atomic Absorption Spectrometry ◽  
Absorption Spectrometry ◽  
Slurry Sampling ◽  
Fast Heating ◽  
Conventional Pyrolysis ◽  
Atomic Absorption Spectrometric

Abstract An electrothermal atomic absorption spectrometric procedure was developed for the determination of mercury in sewage sludge, in which the samples were suspended in a solution containing hydrofluoric and nitric acids. Silver nitrate (4%, m/v) and potassium permanganate (3%, m/v) were incorporated as matrix modifiers, and aliquots were directly introduced into the graphite furnace. A fast-heating program with no conventional pyrolysis step was used. The detection limit for mercury in a 50 mg/mL suspension was 0.1 μg/g. Calibration was performed by using aqueous standards. An analysis of certified reference materials confirmed the reliability of the procedure.

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