GB/T 11066.12-2024Methods for chemical analysis of gold - Part 12: Determination of silver, copper, iron, lead, bismuth, antimony, magnesium, nickel, manganese, palladium, chromium, platinum, rhodium, titanium, zinc, arsenic, tin, silicon, cobalt, calcium, potassium, lithium, sodium, tellurium, vanadium, zirconium, cadmium, molybdenum, rhenium, aluminum contents - Inductively coupled plasma atomic emission spectrometry (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is part 12 of GB/T 11066 "Chemical analysis methods for gold". GB/T 11066 has been published in the following parts.

--- Determination of gold content by fire assay;

--- Determination of silver content by flame atomic absorption spectrometry;

--- Determination of iron content by flame atomic absorption spectrometry;

--- Determination of copper, lead and bismuth content by flame atomic absorption spectrometry;

--- Determination of silver, copper, iron, lead, antimony and bismuth by atomic emission spectrometry;

--- Determination of magnesium, nickel, manganese and palladium content by flame atomic absorption spectrometry;

--- Determination of the amount of silver, copper, iron, lead, antimony, bismuth, palladium, magnesium, tin, nickel, manganese and chromium by spark atomic emission spectrometry;

--- Determination of silver, copper, iron, lead, antimony, bismuth, palladium, magnesium, nickel, manganese and chromium by ethyl acetate extraction - inductively coupled plasma atomic emission Spectroscopy;

--- Determination of arsenic and tin content by hydride generation-atomic fluorescence spectrometry;

--- Determination of silicon content by molybdenum blue spectrophotometry;

--- Part 11. Determination of magnesium, chromium, manganese, iron, nickel, copper, palladium, silver, tin, antimony, lead and bismuth content by inductively coupled plasma mass spectrometry Spectrum;

--- Part 12. Silver, copper, iron, lead, bismuth, antimony, magnesium, nickel, manganese, palladium, chromium, platinum, rhodium, titanium, zinc, arsenic, tin, silicon, cobalt, calcium, potassium, lithium, sodium, Determination of tellurium, vanadium, zirconium, cadmium, molybdenum, rhenium and aluminum contents - Inductively coupled plasma atomic emission spectrometry.

Introduction

GB/T 11066 "Chemical Analysis Methods for Gold" has been published in 11 parts, covering silver, iron, copper, lead, bismuth, antimony, magnesium, nickel, palladium, manganese, chromium, arsenic, However, as gold refineries, raw material suppliers, consumers, third-party arbitration institutions and intermediary traders have been Gold quality control is becoming increasingly strict, and the types of impurity elements required to be tested for gold ingots are increasing, and the testing time requirements are becoming higher and higher; therefore, efficient and accurate It is particularly important to accurately detect the chemical composition of gold. GB/T 11066 consists of 12 parts according to different test objects and test methods.

--- Part 1. Determination of gold content - Fire assay method. The purpose is to specify the fire assay method for gold content in gold and the applicable determination range.

--- Part 2. Determination of silver content by flame atomic absorption spectrometry. The purpose is to specify the flame atomic absorption spectrometry of the silver content in gold. Spectrum method and applicable measurement range.

--- Part 3. Determination of iron content Flame atomic absorption spectrometry. The purpose is to specify the flame atomic absorption spectrometry of iron content in gold. Spectrum method and applicable measurement range.

--- Part 4. Determination of copper, lead and bismuth content by flame atomic absorption spectrometry. The purpose is to specify the copper, lead and bismuth content in gold. Flame atomic absorption spectrometry and its applicable measurement range.

--- Part 5. Determination of silver, copper, iron, lead, antimony and bismuth content by atomic emission spectrometry.

Atomic emission spectrometry for lead, antimony and bismuth content and applicable determination range.

--- Part 6. Determination of magnesium, nickel, manganese and palladium content by flame atomic absorption spectrometry. The purpose is to specify the magnesium, nickel, manganese and palladium in gold Flame atomic absorption spectrometry for determination of content and its applicable measurement range.

--- Part 7. Determination of the amount of silver, copper, iron, lead, antimony, bismuth, palladium, magnesium, tin, nickel, manganese and chromium by spark atomic emission spectrometry. Purpose Spark atomic emission spectrometry for determining the content of silver, copper, iron, lead, antimony, bismuth, palladium, magnesium, tin, nickel, manganese and chromium in gold and applicable Measurement range.

--- Part 8. Determination of silver, copper, iron, lead, antimony, bismuth, palladium, magnesium, nickel, manganese and chromium content - Ethyl acetate extraction - Inductively coupled plasma Ethyl acetate is used to determine the content of silver, copper, iron, lead, antimony, bismuth, palladium, magnesium, nickel, manganese and chromium in gold.

Ester extraction-inductively coupled plasma atomic emission spectrometry and its applicable measurement range.

--- Part 9. Determination of arsenic and tin content - hydride generation - atomic fluorescence spectrometry. The purpose is to specify the arsenic and tin content in gold Hydride generation-atomic fluorescence spectrometry and its applicable measurement range.

--- Part 10. Determination of silicon content - molybdenum blue spectrophotometric method. The purpose is to specify the molybdenum blue spectrophotometric method for the determination of silicon content in gold and its applicable The measurement range used.

--- Part 11. Determination of magnesium, chromium, manganese, iron, nickel, copper, palladium, silver, tin, antimony, lead and bismuth content by inductively coupled plasma mass spectrometry The purpose is to specify the inductively coupled plasma mass spectrometry (ICP) method for the content of magnesium, chromium, manganese, iron, nickel, copper, palladium, silver, tin, antimony, lead and bismuth in gold. Spectrum method and applicable measurement range.

--- Part 12. Silver, copper, iron, lead, bismuth, antimony, magnesium, nickel, manganese, palladium, chromium, platinum, rhodium, titanium, zinc, arsenic, tin, silicon, cobalt, calcium, potassium, lithium, sodium, Determination of tellurium, vanadium, zirconium, cadmium, molybdenum, rhenium and aluminum content by inductively coupled plasma atomic emission spectrometry.

The gold content was determined by inductively coupled plasma atomic emission spectrometry using calibration methods such as matching-standard curve method and multi-spectral fitting method.

Silver, copper, iron, lead, bismuth, antimony, magnesium, nickel, manganese, palladium, chromium, platinum, rhodium, titanium, zinc, arsenic, tin, silicon, cobalt, calcium, potassium, lithium, sodium, tellurium, vanadium, zirconium, Cadmium, molybdenum, rhenium, and aluminum content, improve detection timeliness, meet the needs of the gold ingot market, effectively reduce trade risks, and improve gold ingot detection quality.

Warning---People who use this document should have practical experience in formal laboratory work. This document does not address all possible safety issues.

The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in relevant national laws and regulations.

1 Scope

This document describes the silver, copper, iron, lead, bismuth, antimony, magnesium, nickel, manganese, palladium, chromium, platinum, rhodium, titanium, zinc, arsenic, tin, silicon, cobalt, calcium, potassium, lithium, Methods for determination of sodium, tellurium, vanadium, zirconium, cadmium, molybdenum, rhenium and aluminium contents.

This document applies to silver, copper, iron, lead, bismuth, antimony, magnesium, nickel, manganese, palladium, chromium, platinum, rhodium, titanium, zinc, arsenic, tin, silicon, cobalt, calcium, potassium, lithium, Determination of the content of sodium, tellurium, vanadium, zirconium, cadmium, molybdenum, rhenium and aluminum. The determination range of each element is shown in Table 1.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.