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DL-1金礦石成分分析標(biāo)準(zhǔn)物質(zhì)Gold Ore

Table 1 – DS-1 Certified Values
Element Units Mean Within-lab Standard Deviation Between-labs Standard Deviation 95% Confidence Interval of Mean
Ag μg/g 0.47 0.06 0.12 0.09
AI % 4.48 0.07 0.24 0.13
As μg/g 6960 160 300 160
Au μg/g 32.59 0.56 1.32 0.60
Ba μg/g 221 7 13 9
Co μg/g 9.5 0.6 1.2 0.7
Cu μg/g 27.1 2.0 3.0 1.6
Hg μg/g 82.0 2.6 5.8 4.0
Mg % 2.76 0.06 0.13 0.07
Mn μg/g 437 12 18 10
Ni μg/g 48.7 1.7 4.0 2.1
P μg/g 340 16 28 16
Pb μg/g 13.8 2.3 5.0 3.3
TI μg/g 20.0 1.7 1.8 1.5
Zn μg/g 206 9 18 9
Table 2 – DS-1 Provisional Values
Element Units Mean Within-lab Standard Deviation Between-labs Standard Deviation 95% Confidence Interval of Mean
Be1 μg/g 0.819 0.056 0.046 0.052
C2 % 3.126 0.015 0.075 0.055
Ca FUSION1 % 6.248 0.040 0.066 0.063
CaAD3 % 5.96 0.13 0.27 0.27
Cd μg/g 0.98 0.11 0.18 0.14
Cr μg/g 59 3 12 7
SCOMB2 % 2.609 0.043 0.079 0.063
SAD4 % 2.85 0.08 0.21 0.18
Sb μg/g 107 4 16 9
Si % 25.68 0.20 0.64 0.54
V5 μg/g 147.1 3.3 6.6 5.3
Statistical analysis of the results warrants classification as Provisional, despite only 7 sets.
All sets were derived from combustion followed by infrared spectroscopy.
Statistical analysis of the results warrants classification as Provisional, despite only 7 sets; three and four acid digestions only.
Two to four acid digestions.
Digestions by two acids excluded as statistical outliers.
Table 3 – DS-1 Informational Values
Element Units Mean Accepted laboratories / values Element Units Mean Accepted laboratories / values
Bi μg/g 0.1 3/15 Lu μg/g 0.3 3/15
Ce μg/g 40 3/15 Mo μg/g 4 4/20
Cs μg/g 7 4/20 Na μg/g 400 4/20
Eu μg/g 1 3/15 Sc μg/g 9 5/25
Fe % 3.0 7/35 Sm μg/g 4 3/15
Ga μg/g 10 3/15 Sr μg/g 70 4/20
Hf μg/g 4 3/15 Ta μg/g 0.5 3/15
LOD* % 0.5 4/17 Tb μg/g 0.5 3/15
In μg/g 0.05 3/15 Th μg/g 4 3/15
K % 1.1 5/25 Ti μg/g 2600 5/25
La μg/g 20 4/20 U μg/g 3 3/15
Li μg/g 20 4/20 W μg/g 30 5/25
LOI** % 13 7/32 Yb μg/g 2 3/15
* Loss on drying
** Loss on ignition
Source
DS-1 is a gold ore from the Deep Star mine in Carlin Mine Complex, Nevada, USA which was donated by Newmont Mining Corporation.
Description
The mineral species include: quartz (35.5%); feldspars (mainly K-feldspars and lower proportions of albite at 13.6%); dolomite (15.5%); mixed clays (7.5%); mica (mainly muscovite, lower proportions of biotite, trace phlogopite at 6.5%); ankerite (8.5%); pyrite (3.9%); kaolinite (2.8%); calcite (2.4%); pyrrhotite (1.3%); arsenopyrite (0.9%); jarosite (0.5%); garnet (0.3%); gypsum (0.1%); barite (0.2%); apatite, pyrophyllite, realgar, rutile and siderite at 0.1%; and magnetite, sphlerite and wollastonate at trace levels.