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REE-3稀土鋯礦石成分分析標(biāo)準(zhǔn)物質(zhì)Ore with Rare Earth Elements and Zirconium

Table 1 – REE-3 Certified Values
Analyte Units Mean Within-lab Standard Deviation Between-labs Standard Deviation 95% Confidence Interval of Mean
Al a, c % 4.372 0.033 0.066 0.034
Ba a, c μg/g 69.1 2.0 4.6 2.1
Be a μg/g 82.3 2.4 5.5 3.2
Ca a, c % 1.644 0.019 0.042 0.019
Ce c μg/g 4,540 80 120 60
Cr c μg/g 82 4 10 5
Cs a, c μg/g 1.118 0.040 0.081 0.048
Cu μg/g 16.3 1.3 2.8 1.6
Dy a, c μg/g 330.3 5.5 9.5 5.1
Er a, c μg/g 187.2 3.7 4.9 2.7
Eu a, c μg/g 20.85 0.46 0.70 0.36
Fe a, c % 8.28 0.08 0.24 0.10
Gd a, c μg/g 346 8 16 8
Hf a, c μg/g 448 11 16 10
Ho a, c μg/g 65.0 1.6 1.8 0.9
K a, c % 3.76 0.05 0.11 0.05
La c μg/g 2,121 36 45 22
Loss on ignition b % 0.346 0.028 0.085 0.052
Lu c μg/g 21.53 0.47 0.66 0.37
Mg a, c % 0.0594 0.0029 0.0076 0.0036
Mo μg/g 59.7 2.5 8.4 4.7
Nb a, c μg/g 1,073 30 61 28
Nd c μg/g 2,083 34 52 26
Ni μg/g 10.83 0.90 0.90 0.58
P c % 0.0201 0.0012 0.0036 0.0023
Pb μg/g 534 11 24 11
Pr a, c μg/g 550 11 18 9
Rb a, c μg/g 887 14 36 17
Si c % 29.66 0.11 0.11 0.04
Sm a, c μg/g 398 8 14 7
Sn a, c μg/g 121.1 2.7 7.5 3.6
Sr c μg/g 133.7 3.0 8.8 3.8
Ta a, c μg/g 60.7 1.7 5.6 2.7
Tb a, c μg/g 55.2 1.0 2.5 1.3
Th a, c μg/g 135.5 2.9 4.6 2.5
Ti a, c % 0.3202 0.0055 0.0087 0.0038
Tm a, c μg/g 25.80 0.62 0.93 0.52
Y a, c μg/g 1,725 35 96 42
Yb a, c μg/g 159.4 3.7 4.4 2.4
Zn μg/g 1,499 29 78 35
Zr a, c μg/g 18,660 160 680 380
a Either no sets were received using digestion by two acids (hydrochloric and nitric acids) or the sets using digestion by two acids were declared method outliers    based on statistical tests.
b The mean is based mainly on data from samples of 1 to 2 grams ignited for 1 to 2 hours at 900 to 1050°C.
c The mean is based mainly on data derived from various complete digestion methods.
Table 2 – REE-3 Provisional Values
Analyte Units Mean Within-lab Standard Deviation Between-labs Standard Deviation 95% Confidence Interval of Mean
Bi a μg/g 1.171 0.052 0.085 0.068
Cd μg/g 4.2 0.2 1.2 0.8
Co a μg/g 0.92 0.07 0.15 0.13
Mn a, b % 0.313 0.004 0.020 0.009
Na a, b % 2.328 0.018 0.076 0.044
Tl μg/g 2.341 0.073 0.660 0.473
U a, b μg/g 29.9 0.7 3.7 1.8
a Either no sets were received using digestion by two acids (hydrochloric and nitric acids) or the sets using digestion by two acids were declared method outliers    based on statistical tests.
b The mean is based mainly on data derived from various complete digestion methods.
Table 3 – REE-3 Indicative Values (semi-quantitative only)
Analyte Units Mean No. accepted laboratories / values
Ag μg/g 2 8 / 40
C a % 0.08 7 / 35
Ga e μg/g 80 18 / 90
In b μg/g 0.4 5 / 25
Li b μg/g 60 9 / 45
Moisture c % 0.1 6 / 30
S d % 0.04 14 / 70
Sb μg/g 0.2 5 / 25
Sc μg/g 3 8 / 40
V μg/g 4 8 / 40
W b, e μg/g 1 8 / 40
a The mean is based on data derived from combustion followed by infrared spectroscopy only.
b Either no sets were received using digestion by two acids (hydrochloric and nitric acids) or the sets using digestion by two acids were declared method outliers    based on statistical tests.
c The data was obtained from samples of 1 to 4 grams dried for 0.7 to 3 hours at 100 - 105°C.
d The mean is based on data derived from digestion using four acids (nitric, hydrochloric, hydrofluoric and perchloric acids) or combustion, followed by various    determinations methods.
e The mean is based mainly on data derived from various complete digestion methods.
Source
REE-3 is an ore with rare earth elements and zirconium donated by a Canadian mining company.
Description
The mineral species include: quartz (25.8%); orthoclase  (21.0%); albite (15.2%); aegerina-augita  (9.8%); aegirine (7.6%); hematite/magnetite (5.0%); zircon (4.3%); biotite (4.2%); allanite-(La) (2.6%); gadolinita-(Sm) (1.7%); murataita and fluorite (0.5%); calcite (0.4%); titanite (0.3%); columbite (0.2%); lourenswalsita, iIlmenite, chromferide, sphalerite, anorthite and granate (all at 0.1%); fergusonite (0.07%); bastnasite and ekanite (each at 0.06%); apatite and allanite-(Ce) (each at 0.04%); ferrosaponite and pyrite (each at 0.02%); and actinolite, ferro-actinolite, wollastonite, parisite and monazite (each at 0.01%).
Intended use
REE-3 is suitable for the analysis of rare earth elements and other elements in ores at concentrations ranging from major, minor to trace levels. Examples of intended use include quality control and method development. 
Instructions for use
REE-3 should be used “as is”, without drying. The contents of the bottle should be thoroughly mixed before taking samples. The values herein pertain to the material when produced. CanmetMINING is not responsible for changes occurring after shipment. 
Handling instructions
Normal safety precautions for handling fine particulate matter are suggested, such as the use of safety glasses, breathing protection, gloves and a laboratory coat.
Method of preparation    
The raw material was crushed, ground and sieved. The recovery of the minus 75 μm (200 mesh) fraction was 58%. The product was blended and bottled in 100-gram units. This is the only size that is available.