Journal of Analytical Methods in Chemistry / 2019 / Article / Tab 5

Research Article

Comparative Study on Two Pretreatment Processes for Chemical Phase Analysis of Gold in Geological Samples by Atomic Absorption Spectrometry

Table 5

Analysis results of phase gold.

SampleMethodWSSIECASOMBSIMOBSNSNSCBSSBSISSWeighted valueLeaching rate







I: ultrasonic centrifugation; II: cyclotron oscillation; WSS: water-soluble state; IECAS: ion exchange and clay adsorption state; OMBS: organic matter bound state; IMOBS: iron-manganese oxide bound state; NSNS: naked or seminaked state; CBS: carbonate bound state; SBS: sulfide bound state; ISS: insoluble silicate state. Among the eight phase states, the value outside the parentheses is the content of gold in each phase, and the unit is 10−6; the value in parentheses is the ratio of the phase gold content to the weighted value, and the unit is %. The weighted value is the sum of the eight phase gold contents, and the unit is 10−6; the leaching rate is the ratio of the weighted value to the total content, and the unit is %.

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