@article {10.3844/ajessp.2011.409.414,
article_type = {journal},
title = {Determination of Lead in Human Teeth by Hydride Generation Atomic Absorption Spectrometry},
author = {Abdulsahib, Hassan T.},
volume = {7},
number = {5},
year = {2011},
month = {Oct},
pages = {409-414},
doi = {10.3844/ajessp.2011.409.414},
url = {https://thescipub.com/abstract/ajessp.2011.409.414},
abstract = {Problem statement: The determination of lead in human teeth at concentration levels of μg/ml is proposed using Hydride Generation Atomic Absorption Spectrometry (HG-AAS). To do this, 2% (wv) lanthanum chloride solution was employed as matrix modifying reagent to increase sensitivity and remove matrix interferences. Approach: About 100 μL of sample and 100 μL of 3.0% (m/v) NaBH4 are simultaneously injected into carrier streams. The detection of limit of 0.46 μg L-1 for Pb was achieved and the relative standard deviation of 3.0% for 10 μg L-1 lead was obtained. The recovery percentage of the method had been found to be (92.8-100.5%) for known quantities of lead added to teeth sample which were completely recovered. A comparison of the proposed method with standard addition method showed nearly results in the same samples of teeth and results compared with other studies in the world. Results: The method was shown to be satisfactory for determination of traces of lead in teeth samples with excellent accuracy. Teeth analysis reveals that intact teeth contained the highest amounts of lead which provide an evidence that lead may reduce the prevalence of dantal caries. Statistically significant differences (p},
journal = {American Journal of Environmental Sciences},
publisher = {Science Publications}
}