Evaluation of purity with its uncertainty value in high purity lead stick by conventional and electro-gravimetric methods

@article{Singh2013EvaluationOP,
  title={Evaluation of purity with its uncertainty value in high purity lead stick by conventional and electro-gravimetric methods},
  author={Nahar Singh and Niranjan Singh and S. Tripathy and D. Soni and Khem Singh and P. Gupta},
  journal={Chemistry Central Journal},
  year={2013},
  volume={7},
  pages={108 - 108}
}
BackgroundA conventional gravimetry and electro-gravimetry study has been carried out for the precise and accurate purity determination of lead (Pb) in high purity lead stick and for preparation of reference standard. Reference materials are standards containing a known amount of an analyte and provide a reference value to determine unknown concentrations or to calibrate analytical instruments. A stock solution of approximate 2 kg has been prepared after dissolving approximate 2 g of Pb stick… Expand
The Optimization of Lead Electrodeposition from Leachant of Lead Laden Cupels
Disposal of lead laden cupels is proving problematic to mining and metallurgical companies due to environmental and health issues. In this study the optimization of operation parameters for theExpand
A Practical Way to ISO/GUM Measurement Uncertainty for Analytical Assays Including In-House Validation Data
TLDR
This contribution outlines the estimation of measurement uncertainty of analytical assays in a practical way by considering the heritance of uncertainties according to the ISO Guide to the expression of uncertainty in measurement (ISO/GUM) approach and the accuracy study coming from the in-house method validation. Expand

References

SHOWING 1-10 OF 34 REFERENCES
Uncertainties of mercury determinations in biological materials using an atomic absorption spectrometer – AMA 254
Abstract The method is based on catalysed ignition of a sample portion in a flow of oxygen, capture of mercury by an amalgamator and measurement of the mercury vapour's absorbance after thermicExpand
Determination of lead in vinegar by ICP-MS and GFAAS: evaluation of different sample preparation procedures.
TLDR
It is recommended that lead concentrations in vinegar be measured following a nitric acid digestion and UV photolysis to oxidize all organic matter before ICP-MS or GFAAS analysis; and it is further recommend that the thermal settings for the latter analyses be adjusted to account for the apparent presence of relatively volatile organolead compounds in vinegar digests. Expand
Evaluation and Expression of Uncertainty in the Determination of Alumina in Deodorants Using Complexometric Method
Recent studies reveal that aluminum has several adverse effects on human life and causes several diseases. There are various sources by which aluminum call enter into a human body: The deodorant isExpand
Quantifying uncertainty in the measurement of arsenic in suspended particulate matter by Atomic Absorption Spectrometry with hydride generator
TLDR
It has been concluded that during the period from 31st Jan. 2008 to 7th Feb. 2008 the arsenic concentration varies from 1.44 ± 0.25 to 5.55 ng/m3 with 95% confidence level (k = 2). Expand
DETERMINATION OF LEAD IN WATER SAMPLES USING ION CHROMATOGRAPHY WITH A XYLENOL ORANGE CONTAINING ELUENT
A simple ion chromatographic method has been developed for the determination of Pb(II) in polluted water samples, based upon the use of a colour-forming eluent and visible detection. Using theExpand
The quantitative estimation of silica in rice husk ash by titrimetric method: A case study for uncertainty calculation
Silicon is an essential element found in cereals, fruits, vegetables pasta, rice, etc. Rice husk ash is one of the most silica rich raw materials after complete combustion among the family of agroExpand
Atomic weights of the elements. Review 2000 (IUPAC Technical Report)
A consistent set of internationally accepted atomic weights has long been an essential aim of the scientific community because of the relevance of these values to science and technology, as well asExpand
[GFAAS determination of trace lead in toothpaste using L'vov platform].
TLDR
A method of determining trace lead in toothpaste by this technique is described, which shows that the precision and detection limit obtained by this improved method are much better than those by methods without platform. Expand
Microwave digestion for the determination of arsenic, cadmium and lead in seafood products by inductively coupled plasma atomic emission and mass spectrometry
A single microwave digestion procedure was developed for use with a variety of seafood products. Inductively coupled plasma atomic emission and mass spectrometry were used to determine the levels ofExpand
Zeeman SS-GFAAS — An ideal method for the evaluation of lead and cadmium profiles in bird's feathers
SummaryThe relatively high concentrations of lead and cadmium in feather vanes and the morphological structure of the feather makes it possible to use Zeeman Solid Sampling AAS as an ideal method forExpand
...
1
2
3
4
...