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RTS-3a硫化物尾礦樣品Sulphide Tailings Sample

Table 1 – RTS-3a Certified Values
Element Units Mean Within-lab Standard Deviation Between-labs Standard Deviation 95% Confidence Interval of Mean
Ag μg/g 11.1 0.6 1.0 0.4
Al non AD2a % 5.12 0.08 0.14 0.07
As μg/g 18.2 1.6 2.6 1.5
Ba non AD2a μg/g 106 9 16 8
Bi μg/g 31.3 1.6 1.7 1.0
Ca non AD2a % 2.14 0.05 0.10 0.05
Cd μg/g 9.21 0.30 0.85 0.40
Co μg/g 143 3 12 4
Cu % 0.2353 0.0046 0.0082 0.0030
Feb % 20.49 0.31 0.55 0.27
K non AD2a % 0.460 0.014 0.027 0.013
Mg non AD2a % 2.483 0.054 0.071 0.032
Mn non AD2a % 0.1585 0.0035 0.0091 0.0045
Na non AD2c % 0.684 0.017 0.011 0.006
Ni μg/g 61.3 1.8 6.5 2.5
Pb μg/g 209 5 21 7
S non AD2a % 9.59 0.12 0.23 0.12
Si % 18.28 0.15 0.30 0.20
Sr non AD2a μg/g 44.7 1.2 3.2 1.8
Zn μg/g 2890 50 140 50
Digestion by two acids, usually hydrochloric and nitric acid, excluded as method outlier based on statistical tests (non AD2).
Digestions by one and two acids, usually hydrochloric and nitric acids, excluded as method outliers based on statistical tests, and only instrumental finishes included.
Digestion by two acids, usually hydrochloric and nitric acids, excluded as statistical outliers (non AD2).
Table 2 – RTS-3a Provisional Values
Element Units Mean Within-lab Standard Deviation Between-labs Standard Deviation 95% Confidence Interval of Mean
Aud μg/g 0.561 0.108 0.052 0.060
Cr non AD2a μg/g 176 7 26 13
P non AD2a % 0.0446 0.0014 0.0046 0.0036
Sb non AD2a,e μg/g 2.83 0.12 0.22 0.23
Se μg/g 44.8 1.5 8.9 5.7
Ti non AD2c % 0.351 0.008 0.052 0.027
Zr non AD2a μg/g 78 3 12 7
Digestion by two acids, usually hydrochloric and nitric acid, excluded as method outliers based on statistical tests (non AD2).
Digestion by two acids, usually hydrochloric and nitric acids, excluded as statistical outliers (non AD2).
Fire assay methods only.
Statistical analysis of the data warrants classification as provisional despite only 6 sets of data for antimony.
Table 3 – RTS-3a Informational Values
Analyte Units Mean No. accepted sets/
values Analyte Units Mean No. accepted sets/
values
Al AD2 % 2.5 5/25 P AD2 % 0.036 4/20
C % 0.04 8/40 Nb μg/g 4 3/15
Ca AD2 % 0.8 4/20 Pd μg/g 0.004 4/20
Ce μg/g 30 4/20 Rb μg/g 13 3/15
CO2 % 0.04 3/15 S elemental % 1.2 4/20
Cr AD2 μg/g 130 7/35 S sulphate % 1.1 6/30
Cs μg/g 0.4 3/15 S sulphide % 8 4/20
Fe TITN % 20.49 5/26 Sb AD2 μg/g 2 4/20
Ga μg/g 30 5/25 Sc μg/g 10 6/30
Hf μg/g 2 4/20 Tb μg/g 0.5 3/15
In μg/g 1.6 4/20 Te μg/g 2.0 5/25
K AD2 % 0.12 5/24 Th μg/g 1.4 4/20
La μg/g 10 4/20 Tl μg/g 3 4/20
Li μg/g 10 3/15 U μg/g 0.3 5/25
LOI % 10.6 3/15 V μg/g 120 6/30
Mg AD2 % 1.4 4/20 W μg/g 5 5/25
Mn AD2 % 0.07 5/25 Y μg/g 10 5/25
Mo μg/g 3 5/25
AD2 digestion by two acids, usually hydrochloric and nitric acids
LOI loss on ignition at 950°C
TITN titration methods only
Statistical parameters for iron by titration
within-lab standard deviation = 0.02%
between-labs standard deviation = 0.08%
95% confidence interval of mean = 0.05%
Source
RTS-3a is a sulphide ore mill tailings obtained from an unoxidized zone of the Waite Amulet tailings, north of Noranda, QC, Canada.The raw material was donated by Xstrata Copper. The raw material for RTS-3a was obtained from the same source as its predecessor, RTS-3.
Description
The mineral species include: quartz (18.0%), pyrrhotite (16.6%),amphibole (15.1%), clinochlore (9.3%), K-feldspar (6.1%), vermiculite (6.0%), albite (5.8%), magnetite (5.7%), pyrite (5.0%), pyroxene (4.7%), cummingtonite (3.8%), muscovite (1.4%), gypsum (0.7%), ilmenite (0.5%), chalcopyrite and titanite (both at 0.3%), sphalerite and talc (both at 0.2%); and cassiterite, jarosite and tetrahedrite – tennantite (all three at 0.1%).
Intended use
RTS-3a is suitable for the analysis of various elements at major, minor and trace levels in tailings. Examples of intended use include quality control and method development.