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

LZY01I0.2110.22221.8560.0240.2130.2150.27221.58544.59894.92
(0.47)(0.50)(49.01)(0.05)(0.48)(0.48)(0.61)(48.40)
II0.2240.2380.2400.0260.2160.38422.26121.57245.16196.12
(0.50)(0.53)(0.53)(0.06)(0.48)(0.85)(49.29)(47.77)

LZY02I0.0000.0194.4560.0020.0110.0050.0360.0654.594115.43
(0.00)(0.41)(97.00)(0.04)(0.24)(0.11)(0.78)(1.41)
II0.0060.0060.0510.0070.0030.0323.0790.6053.78995.20
(0.16)(0.16)(1.35)(0.18)(0.08)(0.84)(81.26)(15.97)

LZY03I0.1180.11212.9060.0150.1330.0310.15811.43924.91295.60
(0.47)(0.45)(51.81)(0.06)(0.53)(0.12)(0.63)(45.92)
II0.1250.1941.1630.0140.1150.79211.15311.81725.37397.36
(0.49)(0.76)(4.58)(0.06)(0.45)(3.12)(43.96)(46.57)

LZY04I0.0000.0122.1050.0010.0000.0030.1100.1092.340127.17
(0.00)(0.51)(89.96)(0.04)(0.00)(0.13)(4.70)(4.66)
II0.0000.0190.2030.0030.0000.0411.1130.1801.55984.73
(0.00)(1.22)(13.02)(0.19)(0.00)(2.63)(71.39)(11.55)

LZY05I0.0000.0191.5660.0020.0000.0030.0160.0041.610108.05
(0.00)(1.18)(97.27)(0.12)(0.00)(0.19)(0.99)(0.25)
II0.0000.0060.2130.0010.0000.0421.1290.0461.43796.44
(0.00)(0.42)(14.82)(0.07)(0.00)(2.92)(78.57)(3.20)

LZS01I0.0000.0000.0300.0100.0350.0060.0720.0100.16392.61
(0.00)(0.00)(18.40)(6.13)(21.47)(3.68)(44.17)(6.13)
II0.0000.0060.0220.0020.0000.0230.0960.0440.193109.66
(0.00)(3.11)(11.40)(1.04)(0.00)(11.92)(49.74)(22.80)

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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