IDENTIFICAÇÃO E AVALIAÇÃO DOS TEORES DE METAIS TÓXICOS EM
BATONS

More and more demanding consumers have made cosmetic companies invest in products and research aiming at improve product quality and enhance consumer health and sustainability. Some metals are essential for the good development of beings, but there are others that are harmful to health. Of all metals only 30 are toxic, and lead, cadmium and chromium belong to this group. These metals are present in the pigments used in the manufacture of lipsticks. The legislation establishes safety limits for the presence of these metals in cosmetics, since the risk of contamination is linked to their concentration and exposure. For this reason the analysis of potentially toxic metals in lipsticks is necessary, quantifying and comparing to the contents presented not only by the companies, but also by the current legislation. Thus, this study aimed to quantify the levels of lead, cadmium and chromium in lipsticks of different brands, using acid digestion method and determination by atomic absorption spectrometry. From the results, it was possible to observe the presence of high levels of cadmium in all the analyzed brands and the highest concentrations were found in the darker shades.

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A simple acid digestion method for the determination of ten elements in ambient aerosols by flame atomic absorption spectrometry

Analytica Chimica Acta ◽

10.1016/s0003-2670(01)93615-3 ◽

1980 ◽

Vol 118 (2) ◽

pp. 377-380 ◽

Cited By ~ 8

Author(s):

Thomas R. Stolzenburg ◽

Anders W. Andren

Keyword(s):

Atomic Absorption Spectrometry ◽

Atomic Absorption ◽

Flame Atomic Absorption Spectrometry ◽

Absorption Spectrometry ◽

Acid Digestion ◽

Digestion Method ◽

Ambient Aerosols ◽

Flame Atomic Absorption

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DETERMINAÇÃO DE METAIS POTENCIALMENTE TÓXICOS EM BRINQUEDOS MORDEDORES

Colloquium Exactarum ◽

10.5747/ce.2018.v10.nesp.000154 ◽

2018 ◽

Vol 10 (Especial) ◽

pp. 34-37

Author(s):

Maycon Renan Santos Lima ◽

João Vitor Lourenço ◽

Daniel Ângelo Macena ◽

Vinícius Marques Gomes

Keyword(s):

Atomic Absorption Spectrometry ◽

Atomic Absorption ◽

Flame Atomic Absorption Spectrometry ◽

Toxic Metals ◽

Absorption Spectrometry ◽

Industrial Processes ◽

Technical Standard ◽

Potentially Toxic Metals ◽

Flame Atomic Absorption ◽

Maximum Permissible Concentrations

The toy is an indispensable accessory for the development of the child. In view of this, it is essential that it is free from contamination from industrial processes in its manufacture, which may leave traces of potentially toxic metals that can cause health problems. The Technical Standard ABNT NBR NM 300-3: 2011, (Part 3: Migration of certain elements), regulates the maximum permissible concentrations of metals that may be present in the material, being a maximum of 60 mg / kg for chromium and 90 mg / kg for lead. The objective of this work was to analyze and compare the results of Pb and Cr with the current norm for toys of different price ranges. The analyzes were performed by flame atomic absorption spectrometry (FAAS). From the results, there were high levels of chromium in all the analyzed brands, values higher than allowed by the legislation. For lead, there was absence of metal in the samples.

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Effect of Ultrasound Agitation on the Release of Heavy Elements in Certified Reference Material of Human Hair (CRM BCR 397)

Journal of AOAC International ◽

10.1093/jaoac/89.5.1410 ◽

2006 ◽

Vol 89 (5) ◽

pp. 1410-1416 ◽

Cited By ~ 9

Author(s):

Tasneem G Kazi ◽

Hassan I Afridi ◽

Mohammad K Jamall ◽

Gul H Kazi ◽

Mohammad B Arain ◽

...

Keyword(s):

Reference Material ◽

Atomic Absorption Spectrometry ◽

Atomic Absorption ◽

Human Hair ◽

Scalp Hair ◽

Absorption Spectrometry ◽

Heavy Elements ◽

Acid Digestion ◽

Digestion Method ◽

Hair Samples

Abstract An ultrasonic-assisted leaching procedure was developed for the determination of heavy elements (As, Cu, Cd, Pb, and Zn) in Certified Reference Material of human hair (CRM 397) provided from the Community Bureau of Reference (BCR) of the Commission of the European Community. Concentrated nitric acid30% hydrogen peroxide (2 + 1) was used for the leaching method. The effects of different factors on acid leaching of elements, such as presonication time (without ultrasonic stirring), sonication or exposure time to ultrasound, and temperature of the ultrasonic bath have been investigated. Optimum values of these parameters were selected for the maximum extraction of heavy metals from CRM BCR 397 and human scalp hair samples of normal healthy males. To check the validity of the proposed method, a wet acid digestion method was used to obtain the total elemental concentration in CRM BCR 397 and scalp hair samples. Cu and Zn in leachate and digests were measured by flame atomic absorption spectrometry using a conventional air/acetylene flame, while As, Cd, and Pd were determined by electrothermal atomic absorption spectrometry. Under optimized conditions, the recovery for Zn, Cd, Pd, As, and Cu was 98, 98.5, 97.5, 98.2, and 95%, respectively, of those obtained with the wet acid digestion method.

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Optimized syringe-assisted dispersive micro solid phase extraction coupled with microsampling flame atomic absorption spectrometry for the simple and fast determination of potentially toxic metals in fruit juice and bio-fluid samples

RSC Advances ◽

10.1039/c5ra03537f ◽

2015 ◽

Vol 5 (40) ◽

pp. 31930-31941 ◽

Cited By ~ 31

Author(s):

Behruz Barfi ◽

Alireza Asghari ◽

Maryam Rajabi ◽

Sedigheh Sabzalian ◽

Forough Khanalipoor ◽

...

Keyword(s):

Solid Phase Extraction ◽

Atomic Absorption Spectrometry ◽

Atomic Absorption ◽

Flame Atomic Absorption Spectrometry ◽

Toxic Metals ◽

Solid Phase ◽

Absorption Spectrometry ◽

Phase Extraction ◽

Potentially Toxic Metals ◽

Flame Atomic Absorption

Syringe assisted dispersive micro solid phase extraction coupled with microsampling flame atomic absorption spectrometry as a novel method for potentially toxic metals extraction.

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Determination of Platinum in Wine by Graphite Furnace Atomic Absorption Spectrometry

Journal of AOAC International ◽

10.1093/jaoac/80.1.57 ◽

1997 ◽

Vol 80 (1) ◽

pp. 57-62 ◽

Cited By ~ 7

Author(s):

Carmen Cabrera-Vique ◽

Pierra-Louis Teissedre ◽

Marie-Thérèse Cabanis ◽

Jean-Claude Cabanis

Keyword(s):

Atomic Absorption Spectrometry ◽

Atomic Absorption ◽

Graphite Furnace ◽

Standard Addition ◽

Absorption Spectrometry ◽

Acid Digestion ◽

White Wines ◽

Relative Standard ◽

Graphite Furnace Atomic Absorption

Abstract A method based on graphite furnace atomic absorption spectrometry (GFAAS) was developed for determining platinum in wine. Wine samples were prepared by microwave acid digestion or dry mineralization. The method of standard addition was used for Pt determination in untreated wine samples and mineralized samples. Analyte modifiers and furnace conditions were optimized. Effects of cations (Mg2+, Ca2+, K+, Na+, and NH|) and anions (PO43, SO42) were tested separately and in combination. Analytical characteristics of the method were optimized for analyte recovery and signal enhancement. Recoveries ranged from 92.5 to 102%, and precision reproducibility relative standard deviation varied from 7.5 to 10%. Red, rosé, and white wines from France were analyzed. Platinum levels found in most wines were very low (<10 μg/L).

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Evaluation of arsenic, cobalt, copper and manganese in biological Samples of Steel mill workers by electrothermal atomic absorption Spectrometry

Toxicology and Industrial Health ◽

10.1177/0748233709103036 ◽

2009 ◽

Vol 25 (1) ◽

pp. 59-69 ◽

Cited By ~ 48

Author(s):

HI Afridi ◽

TG Kazi ◽

NG Kazi ◽

MK Jamali ◽

MB Arain ◽

...

Keyword(s):

Atomic Absorption Spectrometry ◽

Atomic Absorption ◽

Biological Samples ◽

Electrothermal Atomic Absorption Spectrometry ◽

Absorption Spectrometry ◽

Human Beings ◽

Acid Digestion ◽

Steel Mill ◽

Hair Samples

The determination of trace and toxic elements in biological samples (blood, urine and scalp hair samples) of human beings is an important clinical test. The aim of our present study was to determine the concentration of arsenic (As), copper (Cu), cobalt (Co) and manganese (Mn), in biological samples of male production workers (PW) and quality control workers (QW) of steel mill, with aged 25–55 years, to assess the possible influence of environmental exposure. For comparison purpose, the same biological samples of unexposed healthy males of same age group were collected as control subjects. The determination of all elements in biological samples was carried out by electrothermal atomic absorption spectrometry, prior to microwave assisted acid digestion. The accuracy of the As, Cu, Co and Mn measurements was tested by simultaneously analyzing certified reference materials (CRMs) and for comparative purposes conventional wet acid digestion method was used on the same CRMs. No significant differences were observed between the analytical results and the certified values, using both methods (paired t-test at P > 0.05). The results indicate that concentrations of As, Cu, Co and Mn in all three biological samples of the exposed workers (QW and PW) were significantly higher than those of the controls. The possible correlation of these elements with the etiology of different physiological disorders is discussed. The results were also demonstrated the need of attention for improvements in workplace, ventilation and industrial hygiene practices.

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