Preparation and certification of high-grade gold geochemical reference material

Balaram, V.; Patil, Mahesh L.; Agrawal, A. K.; Rao, D. V. Subba; Charan, S. N.; Satyanarayanan, M.; Mathur, Ramavati; Kapilavastu, K.; Sarma, D. Srinivasa; Gowda, M. Sankara; Ramesh, S.; Sangurmath, Prabhakar; Anjaiah, K. V.; Dasaram, B.; Saxena, R. K.; Begum, Zahida

doi:10.1007/s00769-006-0179-8

Cited by 15 publications

(10 citation statements)

References 4 publications

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“…Roy et al (2009) have developed a rapid and reliable method for the quantitative determination of sulphur in different types of geological samples with concentrations ranging from 50 μg/g to 4% (by weight) using WD-XRF with a precision <3% RSD with comparable accuracy. Govindaraju (1994) and Balaram, Patil, et al (2006). Abbreviation: WD-XRF, wavelength dispersive XRF.…”

Section: Determination Of Sulphur In Rocks By Wd-xrfmentioning

confidence: 99%

Current and emerging analytical techniques for geochemical and geochronological studies

Balaram

2020

Geological Journal

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Section: Determination Of Sulphur In Rocks By Wd-xrfmentioning

confidence: 99%

Current and emerging analytical techniques for geochemical and geochronological studies

Balaram

2020

Geological Journal

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“…Samples by Graphite Furnace Atomic Absorption Spectrometry (GFAAS) geochemistry for many years, but it does not always provide a total extraction as reported by Chao and Sanzolone (10). Balaram et al (11) studied aqua regia digestion and extraction for some base metals resulting in 95-99% extraction. Saha et al (5) reported a comparative study using a different dissolution procedure for the measurement of copper, lead, zinc, nickel, cobalt, silver, and cadmium and concluded that HF-HClO 4 -HNO 3 digestion is most suitable for the complete extraction of the metals.…”

Section: Determination Of Ag and CD In Soil And Sedimentmentioning

confidence: 99%

Determination of Ag and Cd in Soil and Sediment Samples by Graphite Furnace Atomic Absorption Spectrometry (GFAAS)

Saha¹

2015

At.Spectrosc.

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An extensive study has been made for the determination of silver (Ag) and cadmium (Cd) in soil and sediment samples using different decomposition procedures. A simple and rapid method has been developed for the accurate determination of Ag and Cd at ppb levels by graphite furnace atomic absorption spectrometry (GFAAS). In the present study,-200 mesh size samples were digested in a 100-mL glass beaker using 1:1 HNO 3 for measurement of Ag and Cd by GFAAS. A bulk calibration standard of 20 ppb of Ag and 10 ppb of Cd was used for the measurement of silver and cadmium, respectively. The method was proposed for the determination of Ag and Cd in soil and sediment samples collected according to the guidelines of the National Geochemical Mapping (NGCM) program and is being followed by the Geological Survey of India with an objective for Geochemical Mapping. The precision of the proposed method was investigated by analyzing 10 soil and sediment samples, and the estimated value of the RSD (%) was found to be <10%. The efficiency of the method was also compared by analyzing 10 international soil and sediment reference samples. Very good agreement and excellent precision were observed for the certified values. The limit of quantitation (10σ) achieved for Ag was 5.0 ng/g and for Cd it was 2.0 ng/g, with a recovery of 95-103%

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“…Nitric acid digestion has been most commonly used in exploration geochemistry for many years, but it does not always provide total extraction as reported by Chao and Sanzolone (18). Balaram et al studied aqua regia digestion and extraction for some base metals resulting in a 95-99% extraction (19). Roy et al did a comparative study using a different dissolution procedure for the measurement of copper, lead, zinc, nickel, cobalt, silver, and cadmium and concluded that HF-HClO 4 -HNO 3 digestion is most suitable for complete extraction of these metals (20).…”

Section: **The Abstract Of This Article Was Published In the 41st Chementioning

confidence: 99%

Rapid Procedure for the Quantitative Determination of Gold and Base Metals by Graphite Furnace and Flame Atomic Absorption Spectrometry

Das¹,

Saha²

2013

At.Spectrosc.

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Preparation and certification of high-grade gold geochemical reference material

Cited by 15 publications

References 4 publications

Current and emerging analytical techniques for geochemical and geochronological studies

Current and emerging analytical techniques for geochemical and geochronological studies

Determination of Ag and Cd in Soil and Sediment Samples by Graphite Furnace Atomic Absorption Spectrometry (GFAAS)

Rapid Procedure for the Quantitative Determination of Gold and Base Metals by Graphite Furnace and Flame Atomic Absorption Spectrometry

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