ASTM E1600 Determination of Gold in Cyanide Solutions by Flame Atomic Absorption Spectrometry

Scope:

The ASTM E1600 test method covers the characteristics of gold-bearing ores and determines their applications and specifications. The process proceeds with quality checks, heat treatments, and testing the chemical composition of materials. The results obtained from this method help in quality control, research, and performance evaluation of gold. Metallurgical accounting, process control, and other evaluation procedures are covered under this process.

Procedure:

In ASTM E1600, the sample solution is collected and stored with sodium hydroxide, if necessary, by carefully adjusting the pH. The gold content of the test solution is measured by flame atomic absorption spectrometry.

Specimen Size:

The specimen size should be according to the requirements. In this ASTM E1600 test, 10mL of the gold standard solution is taken.

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Data:

High-Precision Method—The gold concentration of the test solution is calculated by applying the formula where:

Ct = concentration of gold in the test solution, μg/mL,

Ch = concentration of gold in the higher calibration solution, μg/mL,

C1 = concentration of gold in the lower calibration solution, μg/mL,

At = average absorbance or concentration reading of the test solution,

Ah = average absorbance or concentration reading of the higher calibration solution, and

A1 = average absorbance or concentration of the lower calibration solution.

Conclusion: 

The ASTM E1600 test method is specifically important for the quality assurance and durability check of gold. Its role in the various services is determined. A top service provider in this regard is the Infinita Lab which ensures efficient and reliable testing.