The Spectrochemical Determination of Lead in Blood by the Residue AC Arc Method

1966 ◽  
pp. 333-342
Author(s):  
Jack C. Wells ◽  
Robert E. Seidner
Keyword(s):  
Lead In Blood ◽  
Ac Arc

Determination of trace amounts of lead by adsorptive cathodic stripping voltammetry with L-3-(3,4-Dihydroxyphenyl)alanine

2009 ◽  
Vol 74 (4) ◽  
pp. 599-610 ◽  
Author(s):  
Mohammad Bagher Gholivand ◽  
Alireza Pourhossein ◽  
Mohsen Shahlaei
Keyword(s):  
Lead Concentration ◽  
Stripping Voltammetry ◽  
Optimum Conditions ◽  
Lead In Blood ◽  
Accumulation Time ◽  
Cathodic Stripping Voltammetry ◽  
Voltammetric Measurement ◽  
Adsorbed Complex ◽  
Reduction Current

A sensitive and selective procedure is presented for the voltammetric determination of lead. The procedure involves an adsorptive accumulation of lead L-3-(3,4-dihydroxyphenyl)alanine (LDOPA) on a hanging mercury drop electrode, followed by a stripping voltammetric measurement of reduction current of an adsorbed complex at –0.15 V (vs Ag|AgCl). Optimum conditions for lead analysis include pH 8.5, 80 μM LDOPA and accumulation potential –0.15 V (vs Ag|AgCl). The peak currents are proportional to the lead concentration 1–300 nmol l–1 with a detection limit of 0.6 nmol l–1 and accumulation time 60 s. The method was used for the determination of lead in blood, dry tea and also in waters.

An Improved Delves Cup Atomic Absorption Procedure for Determination of Lead in Blood and Urine

1972 ◽  
Vol 18 (11) ◽  
pp. 1312-1317 ◽  
Author(s):  
Eugene D Olsen ◽  
Peter I Jatlow
Keyword(s):  
Sodium Chloride ◽  
Potassium Chloride ◽  
Atomic Absorption ◽  
Similar Technique ◽  
Lead In Blood ◽  
Direct Use

Abstract The Delves [Analyst (London) 95, 431 (1970)] cup atomic absorption procedure for determination of lead in blood has been studied in detail and modified to permit the direct use of aqueous standards. Precision has been improved by stabilizing the burner mount. The small nonspecific absorption is caused by molecular sodium chloride and potassium chloride, and can be compensated for by including sodium chloride in the aqueous standards. If the cups are pre-coated with albumin, aqueous standards can be used and the more complicated method of additions is obviated. A similar technique was used to examine the analysis of lead in urine.

Uncertainty of atomic absorption spectrometry: Application to the determination of lead in blood

1996 ◽  
Vol 123 (1-4) ◽  
pp. 241-249 ◽  
Author(s):  
Jesper Kristiansen ◽  
Jytte Molin Christensen ◽  
Jeanet L. Nielsen
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Absorption Spectrometry ◽  
Lead In Blood
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