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Download or read book Standard Test Method for Determination of Gold in Cyanide Solutions by Atomic Absorption Spectrometry written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Standard Test Methods for Determination of Gold in Cyanide Solutions written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 8 pages
Book Rating : 4.:/5 (921 download)
Download or read book Determination of Gold (1) in Cyanide Solutions by Solvent Extraction and Atomic Absorption Spectrometry written by and published by . This book was released on 1969 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : F. W. E. Strelow
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Total Pages : pages
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Download or read book Determination of gold in cyanide waste solutions by solvent extraction and atomic absorption spectrometry written by F. W. E. Strelow and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 21 pages
Book Rating : 4.:/5 (921 download)
Download or read book The Determination of Gold in Barren Cyanide Solutions by Atomic-absorption Spectrophotometry written by and published by . This book was released on 1966 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The method can be applied to solutions containing more than 0.001 ppm of gold. The gold is concentrated by extraction (as aurocyanide) into a 5 % (v/v) solution of alamine 336 in n-butyl acetate. A single extraction is sufficient to recover the gold quantitatively and to increase its concentration by a factor of a hundred. The absorption of the gold is measured in the organic phase, and the sensitivity obtained is approximately three times that in the aqueous solution. To prevent the formation of a precipitate in the organic phase, EDTA is added. A complete determination takes approximately 1 1/2 hours. Coefficients of variation of about 2 per cent were obtained, and the limit of detection, based on an absorption of 1 per cent (without scale expansion), is 0.001 ppm (0.00058 dwt/ton) of gold.
Download or read book The Determination of Gold in Cyanide Solutions by the Atomic Absorption Method written by and published by . This book was released on 1964 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of an analytical method, capable of determining 0.01 ppm of gold in solution, is described. Solvent extraction with alamine 336, is used to concentrate dilute solutions and to obviate interference from zinc. A coefficient of variation of 4.4 per cent was obtained for a synthetic solution containing 0.25 ppm gold.
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Total Pages : 3 pages
Book Rating : 4.:/5 (921 download)
Download or read book Laboratory Method No 79-12. The Determination of Gold in Cyanide Solutions by Atomic-absorption Spectrophotometry written by and published by . This book was released on 1980 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gold, when present in cyanide solutions at concentrations below 5 ug/ml, is extracted with Aliquat 336 in diisobutyl ketone, and is measured by atomic-absorption spectrophotometry. For concentrations higher than 5 ug/ml, the gold is measured direct on an acidified portion of the sample.
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Total Pages : 5 pages
Book Rating : 4.:/5 (921 download)
Download or read book The Determination of Small Amounts of Gold in Barren Cyanide Solutions by Atomic-absorption Spectrophotometry. Laboratory Method No 79-4 written by and published by . This book was released on 1966 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: An aliquot portion of the sample is extracted by a measured amount of 5 per cent alamine 336 in n-butyl acetate. The extracted gold is determined by atomic absorption in the organic phase.
Author : ASTM International
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ISBN 13 :
Total Pages : 980 pages
Book Rating : 4.:/5 (31 download)
Download or read book Annual Book of ASTM Standards written by ASTM International and published by . This book was released on 2003 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Society for Testing and Materials
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ISBN 13 :
Total Pages : 972 pages
Book Rating : 4.0/5 ( download)
Download or read book Annual Book of ASTM Standards written by American Society for Testing and Materials and published by . This book was released on 1986 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt: A compilation of all ASTM standards issued each year.
Author : L. R. P. Butler
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Total Pages : pages
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Download or read book Automatic atomic absorption method for assaying gold in mill cyanide solutions written by L. R. P. Butler and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trace Gold Determination in Cyanide Process Solutions : Preconcentration Using Supported Liquid Membranes in a Flow-injection Manifold written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A method for the determination of trace levels of gold in cyanide process solutions has been developed. Preconcentration of the aurocyanide anion is achieved by extraction into a supported liquid membrane (SLM), formed by the in situ coating of a thin layer of organic phase onto a polymeric support. This support is packed into a microcolumn, which forms part of a flow injection manifold. After the sample solution has flowed over the organic phase for a suitable period, the entire organic phase is washed off the column with an organic solvent and introduced into the flame of a conventional atomic absorption spectrophotometer. The method allows gold to be determined in the range of 0,01 to 0,1 mg/l with a Sr of 0,027 at the 0,04 mg/l level. With an analysis time of 150 seconds per sample, a detection limit of 0,005 mg/l was achieved with a sampling frequency of 24/h.
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ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (921 download)
Download or read book A Review of the Determination of Gold in Solutions and in Solids by Solvent Extraction and Atomic Absorption Spectrometry written by and published by . This book was released on 1969 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Society for Testing and Materials
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ISBN 13 :
Total Pages : 888 pages
Book Rating : 4.F/5 ( download)
Download or read book ASTM Standardization News written by American Society for Testing and Materials and published by . This book was released on 2007 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : https://www.chinesestandard.net
Publisher : https://www.chinesestandard.net
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4./5 ( download)
Download or read book GB/T-2021, GB-2021 -- Chinese National Standard PDF-English, Catalog (year 2021) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2022-06-02 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides the comprehensive list of Chinese National Standards - Category: GB, GB/T Series of year 2021.
Author : D. J. Barkley
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Total Pages : 52 pages
Book Rating : 4.3/5 (129 download)
Download or read book A Rapid Colorimetric Solvent-extraction Procedure for the Determination of Cyanide in Gold-mill Effluents and Receiving Waters written by D. J. Barkley and published by . This book was released on 1970 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : F.E. Beamish
Publisher : Elsevier
ISBN 13 : 0323155022
Total Pages : 344 pages
Book Rating : 4.3/5 (231 download)
Download or read book Analysis of Noble Metals written by F.E. Beamish and published by Elsevier. This book was released on 2012-12-02 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis of Noble Metals: Overview and Selected Methods describes simple techniques with useful sensitivity, accuracy, and precision for noble metal analysis. This book is composed of seven chapters that include the methods of atomic absorption, spectrochemical, spectrophotometric, gravimetric, volumetric, and potentiometric determinations of noble metals. Each chapter discusses the concept, principles, practice, and application of the specific analytical technique. A chapter examines several separation methods for noble metals, including cation exchange, mercury amalgam, reduction, silver assay beads, solvent extraction, and dissolution. This book will be of great value to analytical chemists, instrumental engineers, and researchers.
