Removal of humic acid and surfactant interferences in trace metal determinations by differential-pulse anodic stripping voltammetry with use of adsorption and chelate ion-exchanger columns in a flow-injection system

1987 ◽  
Vol 192 ◽  
pp. 1-8 ◽  
Author(s):  
Xiurong Yang ◽  
Lars Risinger ◽  
Gillis Johansson
Keyword(s):  
Humic Acid ◽  
Trace Metal ◽  
Flow Injection ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Ion Exchanger ◽  
Injection System ◽  
Anodic Stripping ◽  
Flow Injection System

Temperature-Programmable Furnace for Ashing of Foods in Trace Metal Analysis

1977 ◽  
Vol 60 (1) ◽  
pp. 239-240
Author(s):  
Walter Holak
Keyword(s):  
Trace Metal ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Atomic Absorption Spectrophotometry ◽  
Metal Analysis ◽  
Trace Metal Analysis ◽  
Absorption Spectrophotometry ◽  
Anodic Stripping ◽  
Cadmium Lead

Abstract The use of a programmable furnace in preparing samples for determining cadmium, lead, copper, and zinc by differential pulse anodic stripping voltammetry or atomic absorption spectrophotometry is convenient and timesaving. Recovery data for these 4 metals in various foods (tuna, sardines, and milk) were 93— 96% for 0.01—1 ppm cadmium, 96—114% for 0.05—5 ppm lead, 100—108% for 2—10 ppm copper, and 97% for 10 ppm zinc.

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