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GB/T 11066.4-2008: Methods for chemical analysis of gold -- Determination of copper, lead and bismuth contents -- Flame atomic absorption spectrometry
Status: Valid GB/T 11066.4: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 11066.4-2008 | English | 169 |
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Methods for chemical analysis of gold -- Determination of copper, lead and bismuth contents -- Flame atomic absorption spectrometry
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GB/T 11066.4-2008
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| GB/T 11066.4-1989 | English | 199 |
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Gold--Determination of copper, lead, bismuth and antimony contents--Flame atomic absorption spectrometric method
| Obsolete |
GB/T 11066.4-1989
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PDF similar to GB/T 11066.4-2008
Basic data | Standard ID | GB/T 11066.4-2008 (GB/T11066.4-2008) | | Description (Translated English) | Methods for chemical analysis of gold -- Determination of copper, lead and bismuth contents -- Flame atomic absorption spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H68 | | Classification of International Standard | 77.150.99 | | Word Count Estimation | 7,789 | | Date of Issue | 2008-06-09 | | Date of Implementation | 2008-12-01 | | Older Standard (superseded by this standard) | GB/T 11066.4-1989 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.9 (Total No.122) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the gold copper, determination of lead and bismuth content. This section applies to deposits of copper, simultaneous determination of lead and bismuth content. Also applies where an independent determination of an element. | GB/T 11066.4-2008: Methods for chemical analysis of gold -- Determination of copper, lead and bismuth contents -- Flame atomic absorption spectrometry
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods for chemical analysis of gold. Determination of copper, lead and bismuth contents. Flame atomic absorption spectrometry
ICS 77.150.99
H68
National Standards of People's Republic of China
Replacing GB/T 11066.4-1989
Methods for chemical analysis of gold
Determination of copper, lead and bismuth contents
Flame Atomic Absorption Spectrometry
Posted 2008-06-09
2008-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 11066 "Methods for chemical analysis of gold" is divided into the following 10 sections.
--- GB/T 11066.1 gold chemical analysis method of determining the amount of gold fire assay;
--- GB/T 11066.2 gold chemical analysis of silver content - Flame atomic absorption spectrometry;
--- GB/T 11066.3 gold chemical analysis of iron content by flame atomic absorption spectrometry;
--- Flame atomic GB/T 11066.4 gold chemical analysis of copper, lead and bismuth contents absorption spectrometry;
--- GB/T 11066.5 gold chemical analysis method for determination of atomic silver, copper, iron, lead, antimony and bismuth amount of emission spectrometry;
--- Flame atomic GB/T 11066.6 gold chemical analysis of iron, nickel, manganese, and palladium absorption spectrometry;
--- GB/T 11066.7 gold chemical analysis of silver, copper, iron, lead, antimony, bismuth, palladium, magnesium, tin, nickel, manganese and chromium contents - fire
Flower atomic emission spectrometry;
--- GB/T 11066.8 gold chemical analysis of silver, copper, iron, lead, antimony, bismuth, palladium, magnesium, nickel, manganese and chromium contents - ethyl acetate
Ester extraction -ICP-AES method;
--- GB/T 11066.9 gold chemical analysis method for determination of arsenic and tin hydride - atomic fluorescence spectrometry;
--- GB/T 11066.10 chemical analysis of gold - Determination of silicon content of silicon molybdenum blue spectrophotometric method.
This is Part 4.
This Part replaces GB /determination of copper, lead, bismuth and antimony T 11066.4-1989 "gold chemical analysis by flame atomic absorption spectrometry
the amount". Compared with GB/T 11066.4-1989, this section has the following changes.
--- Remove the determination of antimony content relevant content;
--- Instrument requirements, sensitivity to the characteristic concentration;
--- Will allow the poor to the terms of the precision (repeatability and reproducibility);
--- Increased quality assurance and control provisions.
This part is proposed by the China Nonferrous Metals Industry Association.
The non-ferrous metal part by the National Standardization Technical Committee.
This section is responsible for drafting unit. Chengdu Banknote Printing Company.
This section is drafted. Beijing Mining Research Institute, Chengdu Banknote Printing Company.
Participated in the drafting of this section. Chengdu Banknote Printing Company, Shanghai Mint, Shenyang Mint Institute of Technology, Jiangxi Copper Company, Zijin Copper
Group, Hubei Daye Nonferrous Metals Group, and the National Gold and Silver Products Quality Supervision and Inspection Center.
The main drafters of this section. Fu Bin, in force, Lihua Chang, Chen Jie, Wang Zisen, Liu Feng, Xing Guizhen, Ma Yuqin.
This part certifier. Denghai Hong, Liu Chunfeng.
This part of the standard replaces the previous editions are.
--- GB/T 11066.4-1989.
Methods for chemical analysis of gold
Determination of copper, lead and bismuth contents
Flame Atomic Absorption Spectrometry
1 Scope
This section provides the determination of gold in copper, lead and bismuth content.
This section applies to gold in copper, lead and bismuth simultaneous determination, which also applies to independent determination of an element. See measurement range
Table 1.
Table 1
Elements Cu Pb Bi
Mass fraction /% 0.0005 0.0250 0.0005 0.0060 0.0005 0.0030
2 Method summary
Sample decomposition with aqua regia, in 2mol/L HCl medium, separation of gold extracted with ethyl acetate, made after the aqueous phase was concentrated hydrochloric acid (1 + 9) to be
Test solution, using air - acetylene flame atomic absorption spectrometer wavelength listed in Table 2, measuring the absorbance of each element.
Table 2
Elements Cu Pb Bi
Wavelength/nm 324.7 217.0 223.1
3 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity.
3.1 hydrochloric acid (ρ about 1.19g/mL), pure class distinctions.
3.2 HCl (1 + 1).
Hydrochloride 3.3 (1 + 9).
3.4 hydrochloride (Ba (HCl) = 2mol/L).
3.5 nitric acid (ρ about 1.42g/mL), pure class distinctions.
3.6 nitric acid (1 + 1).
Dilute aqua regia 3.7. 1 to 3 parts of nitric acid and hydrochloric acid and 3 parts of water and mix.
3.8 tartaric acid solution, 500g/L, pure class distinctions.
3.9 washing liquid, pipette 9mL tartaric acid solution (3.8) (3.4) at 300mL of hydrochloric acid, and mix.
3.10 ethyl acetate.
3.11 copper standard stock solution. Weigh 0.5000g metallic copper (Cu mass fraction ≥99.95%), low-temperature heating nitric acid dissolved in 20mL
(3.6) was added 20mL of water, boil rid of oxides of nitrogen, cooled to room temperature, water and transferred to 1000mL volumetric flask and dilute to the mark
Degree, and mix. This solution 1mL containing 500μg copper.
3.12 lead standard stock solution. Weigh 1.0000g metallic lead (Pb mass fraction ≥99.95%), low-temperature heating nitric acid dissolved in 20mL
(3.6) and boiled rid of oxides of nitrogen, cooled to room temperature, water and transferred to 1000mL volumetric flask and dilute to volume, and mix. This solution
1mL containing 1mg lead.
3.13 Bismuth standard stock solution. Weigh 1.0000g metal bismuth (Bi mass fraction ≥99.95%), low-temperature heating nitric acid dissolved in 100mL
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