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WPR-1a稀土和鉑族元素的橄欖巖成分分析標(biāo)準(zhǔn)物質(zhì)Peridotite with Rare Earth and platinum group elements

Table 1 – WPR-1a Certified Values
Element Units Mean Within-lab Standard Deviation Between-labs Standard Deviation 95% Confidence Interval of Mean
Ag μg/g 1.02 0.05 0.10 0.05
Al AD4 + no AD a % 2.621 0.043 0.076 0.035
As μg/g 9.3 0.7 1.1 0.6
Ba AD4 + no AD a μg/g 70.6 2.3 2.4 1.4
Bi μg/g 0.122 0.006 0.011 0.008
Ca no AD2 b % 2.528 0.046 0.096 0.044
Cd μg/g 0.598 0.037 0.086 0.044
Ce no AD2 b μg/g 9.69 0.32 0.57 0.33
Co AD4 + no AD a μg/g 213 4 17 8
Cs μg/g 2.38 0.08 0.15 0.08
Cu % 0.299 0.005 0.016 0.006
Dy no AD2 c μg/g 1.624 0.056 0.056 0.035
Er AD4 + no AD a μg/g 0.886 0.037 0.037 0.016
Eu AD4 + no AD a μg/g 0.497 0.017 0.020 0.013
Fe AD4 + no AD a % 11.34 0.20 0.49 0.20
Ga no AD2 b μg/g 7.04 0.24 0.28 0.18
Gd no AD2 c μg/g 1.76 0.05 0.10 0.06
Hf FUS d μg/g 1.142 0.071 0.094 0.071
Ho AD4 + no AD a μg/g 0.322 0.009 0.019 0.013
K % 0.156 0.006 0.011 0.005
La AD4 + no AD a μg/g 4.04 0.15 0.24 0.13
Li AD4 + no AD a μg/g 25.6 0.8 1.1 0.8
Lu no AD2 b μg/g 0.121 0.006 0.010 0.007
Mn no AD2 b % 0.138 0.003 0.012 0.005
  Nd  no AD2 c μg/g 6.26 0.20 0.20 0.10
Ni AD4 + no AD a % 0.439 0.009 0.022 0.010
P no AD2 c μg/g 303 19 19 9
Pb μg/g 7.92 0.89 0.89 0.32
Pd μg/g 0.614 0.015 0.025 0.012
Pr no AD2 b μg/g 1.362 0.050 0.054 0.035
Pt μg/g 0.452 0.014 0.030 0.014
Rb μg/g 7.06 0.16 0.44 0.24
S e % 1.768 0.033 0.079 0.038
Sb no AD2 b μg/g 3.13 0.21 0.39 0.27
Sc AD4 + no AD a μg/g 17.3 0.4 1.2 0.6
Si no AD2 f % 17.62 0.17 0.34 0.18
Sm no AD2 b μg/g 1.617 0.050 0.071 0.041
Sr AD4 + no AD a μg/g 19.5 0.6 1.1 0.6
Tb no AD2 c μg/g 0.269 0.010 0.020 0.013
Ti AD4 + no AD a % 0.3527 0.0054 0.0082 0.0042
Tm AD4 + no AD g μg/g 0.126 0.006 0.017 0.012
V AD4 + no AD a μg/g 135 3 10 5
Y AD4 + no AD a μg/g 8.39 0.23 0.43 0.26
Yb AD4 + no AD a μg/g 0.790 0.027 0.052 0.034
Zn no AD2 b μg/g 160 5 18 8
Sets using digestion by two acids (hydrochloric and nitric) and three acids (hydrochloric, nitric and hydrofluoric) were excluded as method outliers based on statistical tests.
Sets using digestion by two acids (hydrochloric and nitric) were excluded as method outliers based on statistical tests.
Sets using digestion by two acids (hydrochloric and nitric) were excluded as method outliers based on statistical tests, and no sets were received by digestion using three acids.
Sets by fusion using lithium metaborate and sodium pyrosulphate were included only, based on statistical tests.
Sets by acid and microwave digestion, combustion followed by infrared spectroscopy, fusions, and fused pellet were included.
The data included sets by various fusions and one set by digestion using three acids.
No sets by digestion with either two or three acids were received.
Table 2 – WPR-1a Provisional Values
Element Units Mean Within-lab Standard Deviation Between-labs Standard Deviation 95% Confidence Interval of Mean
Cr no AD a % 0.322 0.006 0.025 0.012
In AD b, c μg/g 0.0899 0.0041 0.0041 0.0041
loss on ignition d % 8.42 0.09 0.46 0.26
Mg AD4 + no AD e % 15.22 0.07 0.29 0.18
Na f % 0.050 0.004 0.012 0.006
Nb no AD2 g μg/g 3.88 0.18 0.39 0.30
Ni AD2 + AD3 h % 0.385 0.007 0.051 0.037
Se no AD2 g μg/g 7.7 0.4 1.0 0.8
Sn no AD2 c, g μg/g 1.16 0.17 0.17 0.08
Ta  i μg/g 0.242 0.015 0.018 0.015
Te no AD2 g μg/g 0.958 0.058 0.075 0.066
Th no AD2 g, j μg/g 0.64 0.05 0.15 0.09
Tl  AD k μg/g 0.0752 0.0048 0.0063 0.0042
Zr FUS l μg/g 41.8 2.1 2.8 2.4
Sets using digestion by any combination of two, three or four acids (hydrochloric, nitric, hydrofluoric and perchloric) were excluded as method outliers based on statistical tests.
Sets using digestions by various combinations of acids were included only based on statistical tests. 
Statistical analysis of the data warrants classification as provisional despite only  6 or 7 sets of data.
Samples of  0.5 to 1 grams ignited for 0.5 to 2 hours at 900 to 1050°C are included only.
Sets using digestion by two acids (hydrochloric and nitric) or three acids (hydrochloric, nitric and hydrofluoric) were excluded as method outliers based on statistical tests.
Data fulfills the conditions for certified but the element was reclassified as provisional since the between-laboratories standard deviation is about 25% of the mean value.
Sets using digestion by two acids (hydrochloric and nitric) were excluded as method outliers based on statistical tests.
Sets using digestion by two acids (hydrochloric and nitric) or three acids (hydrochloric, nitric and hydrofluoric) were included only based on statistical tests.
No sets by digestion using two acids were received.
Data fulfills the conditions for certified but the element was reclassified as provisional since the between-laboratories standard deviation is 23% of the mean, and 3 sets of data have one significant figure
Sets by various methods using digestion with acids were received only, excluding outliers based on significant figures; data fulfilled the conditions for certification, but the element was re-classified as provisional since all of the accepted data have one significant figure.
Sets by fusion with lithium metaborate and sodium pyrosulphate are included only based on

    statistical tests. 
 

Table 3 – WPR-1a Informational Values
(semi-quantitative only)
Analyte Units Mean No.
accepted
laboratories
/ values Analyte Units Mean No. accepted
laboratories /
values
Al  AD2 + AD3 a % 2.3 4 / 20 Mo AD3 + AD4 f μg/g 1.1 6 / 30
Au b μg/g 0.05 17 /85 Mo FUS g μg/g 2 3 / 15
Ba AD2 + AD3 a μg/g 50 5 / 25 moisture h % 0.6 6 / 30
Be AD4 c μg/g 0.2 6 / 30 P AD2 d % 0.03 4 / 20
C % 0.15 5 / 25 Re i μg/g 0.022 5 / 25
Ca AD2 d % 0.7 4 / 20 Rh j μg/g 0.03 5 / 24
Ce AD2 d μg/g 6 3 / 15 Ru k μg/g 0.06 5 / 24
Co AD2 + AD3 a μg/g 190 7 / 35 Sc AD2 d μg/g 8 3 / 15
Cr AD2 d % 0.08 4 / 20 Se AD2 d μg/g 6 4 / 20
Cr AD4 c % 0.2 4 / 20 Sn AD2 d μg/g 0.7 3 / 15
Fe AD2 d % 9 4 / 20 Sr AD2 + AD3 a μg/g 16 5 / 25
Ga AD2 d μg/g 5 4 / 20 Th AD2 d μg/g 0.3 3 / 15
Ge AD2 d μg/g 0.3 3 / 15 U AD2 d μg/g 0.1 3 / 15
Ge AD4 + FUS e μg/g 1 5 / 25 U AD4 c μg/g 0.2 4 / 20
Hg μg/g 0.05 3 / 15 U FUS g μg/g 0.3 5 / 25
Ir μg/g 0.02 7 / 34 V AD2 d μg/g 70 3 / 15
La AD2 + AD3 a μg/g 2.8 4 / 20 W AD4 c μg/g 0.4 3 / 15
Li AD2 + AD3 a μg/g 20 5 / 25 Y AD2 + AD3 a μg/g 5 4 / 16
Mg AD2 + AD3 a % 13 4 / 20 Zn AD2 d μg/g 120 5 / 25
Mn AD2 d % 0.1 4 / 20 Zr AD4 c μg/g 20 5 / 25
Mo AD2 d μg/g 0.9 4 / 20  
Sets using digestion by two acids (hydrochloric and nitric) or three acids (hydrochloric, nitric and hydrofluoric) were included only.
Sets with sample weight of 10 grams or less were excluded due to results of assessment of homogeneity.
Mean is based on sets by digestion with four acids (hydrochloric, nitric, perchloric and hydrofluoric) only.
Sets by digestion using hydrochloric and nitric acids only were included.
Sets by digestion using four acids and various fusions only were included.  
Sets using various acid digestions with three and four acids were included only.
Sets using various fusion methods were included only.
Samples of 1 to 2 grams dried for 1 or more hours at 105 to 120°C.
Sets by digestion only were included.
Sets using fire assay pre-concentration only were included.
Sets using fire assay pre-concentration with nickel sulphide collection only were included.
Source
WPR-1a is a peridotite with rare earth and platinum group elements obtained from the Wellgreen property in the Yukon, Canada.  The raw material for WPR-1a was obtained from the same source as its predecessor, WPR-1.
Description
The mineral species include: serpentine (47.4%), talc (11.0%), diopside (9.8%), amphibole (8.7%), pyrrhotite (4.9%), magnetite (4.5%), ferrohornblende (3.5%), phlogopite (2.2%), chlorite (1.6%), pentlandite (1.4%), unnamed mineral: Fe-Cr-Cl (1.2%), calcite (0.9%), ilmenite (0.8%), chalcopyrite (0.7%), other (0.4%), pyrite (0.3%), wilkeite (0.3%), quartz (0.2%), titanite (0.2%), anorthite (0.1%), and albite (0.04%).
Intended use
WPR-1a is suitable for the analysis of rare earths, platinum and palladium and various elements at major, minor and trace levels in ores. Examples of intended use include quality control and method development.  A caution is advised for the use of WPR-1a for the quality control of data for gold.
Instructions for use
WPR-1a should be used “as is”, without drying. The contents of the bottle should be thoroughly mixed before taking samples. 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, sieved to remove the plus 75 μm fraction.  The recovery of the minus 75 μm fraction was 71%.  The product was blended, and then bottled in 400-gram units.  This is the only size that is available.