Determination of Trace Elements in Human Saliva by Pixe Technique

Hatami, P.; Peyrovan, H.; Afarideh, H.; Shojaei, Siroos

doi:10.1142/s0129083596000284

Cited by 2 publications

(1 citation statement)

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“…The overall relatively low concentrations of elements probably result from the relatively small time durations of activities in comparison to the entire sampling period. For the activity days, Na, Mg, Ca, P, Cl, and K can be attributed to saliva droplets (Anders 1957;Shannon and Prigmore 1962;Lear and Groen 1968;Lagerlof and Matsuo 1991;Hatami et al 1997). Note that the relative amounts of each of these elements in saliva can vary from subject to subject, and that the amount of saliva that is aerosolized can vary depending on different methods used by different technicians.…”

Section: Resultsmentioning

confidence: 99%

Measurement of particle concentrations in a dental office

Sotiriou

Ferguson

Davey

et al. 2007

Environ Monit Assess

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Particles in a dental office can be generated by a number of instruments, such as air-turbine handpieces, low-speed handpieces, ultrasonic scalers, bicarbonate polishers, polishing cups, as well as drilling and air sprays inside the oral cavity. This study examined the generation of particles during dental drilling and measured particle size, mass, and trace elements. The air sampling techniques included both continuous and integrated methods. The following particle continuous measurements were taken every minute: (1) size-selective particle number concentration (Climet); (2) total particle number concentration (PTRAK), and; (3) particle mass concentration (DustTrak). Integrated particle samples were collected for about 5 h on each of five sampling days, using a PM(2.5) sampler (ChemComb) for elemental/organic carbon analysis, and a PM(10) sampler (Harvard Impactor) for mass and elemental analyses. There was strong evidence that these procedures result in particle concentrations above background. The dental procedures produced number concentrations of relatively small particles (<0.5 microm) that were much higher than concentrations produced for the relatively larger particles (>0.5 microm). Also, these dental procedures caused significant elevation above background of certain trace elements (measured by X-ray fluorescence) but did not cause any elevation of elemental carbon (measured by thermal optical reflectance). Dental drilling procedures aerosolize saliva and products of drilling, producing particles small enough to penetrate deep into the lungs. The potential health impacts of the exposure of dental personnel to such particles need to be evaluated. Increased ventilation and personal breathing protection could be used to minimize harmful effects.

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Section: Resultsmentioning

confidence: 99%

Measurement of particle concentrations in a dental office

Sotiriou

Ferguson

Davey

et al. 2007

Environ Monit Assess

View full text Add to dashboard Cite

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Simultaneous Multi-Element (Including Fluorine) Analysis of Various Bio-Medical Samples

et al. 2005

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We have measured fluorine concentration in samples taken from humans, such as sweat, saliva, snivel and tear in addition to hair, nail and urine, together with those of other elements by means of a three-detector measuring system. Fluorine has been known as one of the most toxic elements as well as arsenic, lead, mercury and cadmium which contaminate environment over the wide area. This system allowed us to discuss about fluorine concentration related to other elements'. A standard-free method established by us has been applied to quantitative analyses of these samples. By means of these methods, quantitative analysis becomes possible for samples of less than 1mg or 1μl and it is quite suited to tear, snivel and sweat. As one of the conclusion, sweat, snivel and tear give useful information in addition to the samples which have been traditionally analyzed. It is found that titanium concentration in a body is well estimated by analyses of sweat, snivel and saliva, arsenic concentration can be estimated by sweat analysis in addition to urine analysis, and nickel is well evaluated by sweat and tear. In this way, it is required to estimate elemental concentration in a human body by measuring various clinical samples. Especially, correlation between fluorine and arsenic is found in a few bio-medical samples.

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Determination of Trace Elements in Human Saliva by Pixe Technique

Cited by 2 publications

References 0 publications

Measurement of particle concentrations in a dental office

Measurement of particle concentrations in a dental office

Simultaneous Multi-Element (Including Fluorine) Analysis of Various Bio-Medical Samples

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