Automatic Mercury Analysis in Biological Samples
Author Information
Author(s): Osten Einarsson, G6sta Lindstedt, Torgil Bergström
Primary Institution: National Board of Occupational Safety and Health, Chemistry Division
Hypothesis
The new computerized apparatus can improve the determination of mercury in biological samples.
Conclusion
The automated apparatus provides a rapid and sensitive method for analyzing mercury in urine and blood samples.
Supporting Evidence
- The apparatus can analyze 60 samples in about 2 hours without supervision.
- The detection limit was about 0.25 ng of mercury per sample.
- Variations in sensitivity due to matrix influences are within 10%, which is acceptable for routine control.
- Different methods of evaluation showed that peak area is a safer method than peak height.
Takeaway
This study shows a new machine that can quickly check for mercury in pee and blood, helping keep people safe from pollution.
Methodology
The study involved using a computerized apparatus to analyze urine and blood samples for mercury content using atomic absorption spectrophotometry.
Potential Biases
Potential bias due to variations in sample matrix affecting sensitivity.
Limitations
The study did not test alternative reducing agents that could improve the method.
Participant Demographics
Samples included urine and blood from occupationally unexposed persons.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
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