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Round robin tests XRF-analysis XRF Round-robin test GeoPT 36A, England - SdAR-M2, Metalliferous Sediment

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT36a
Material of proficiency test:
SdAR-M2, (Metal-rich Sediment)
Study finished:
2015 - 3
Literature:
Report - GeoPT36a Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O2,5802,5790,0450,010
MgO0,4900,4910,011-0,050
Al₂O₃12,45012,4700,171-0,060
SiO₂73,36073,4500,770-0,060
P₂O50,0790,0790,0020,000
K₂O4,9805,0000,078-0,130
CaO0,8500,8410,0170,250
TiO₂0,3010,3000,0070,070
Fe₂O₃ tot2,5802,6300,045-0,550
MnO0,1370,1340,0040,400
L.O.I.1,6001,6200,030-0,330

trace elements [µg/g]

CRBRV1sRVZ-Score
Ag *10,0014,504,20---
As85,0075,803,201,45
Ba1020,00990,0028,000,53
C-tot. *3351,003080,00437,00---
C-org. *2697,002383,00498,00---
Br *2,001,601,00---
Ce97,0098,804,00-0,22
Co14,0012,400,701,18
Cr57,0049,602,201,68
Cu242,00236,008,300,36
Ga18,0017,600,900,23
Hf7,007,290,40-0,34
La44,0046,602,10-0,62
Nb27,0026,201,300,31
Nd36,0039,401,80-0,94
Ni48,0048,802,20-0,17
Pb820,00808,0023,600,26
Pr10,0011,000,60-0,80
Rb156,00149,205,600,61
S *770,00927,00308,00---
Sb *70,00106,0042,00---
Se *2,002,701,40---
Sm6,007,200,40-1,38
Sr150,00143,905,500,56
Th17,0014,200,801,82
U1,502,500,20-2,93
V595,00600,905,50-0,06
Y25,0025,201,20-1,85
Zn774,00760,0022,400,31
Zr252,00259,009,00-0,39

Legend

CRB
results CRB
cooperative test
results collaborative study
1s-RV
standard deviation collaborative study
Z-Score
Difference of measured value from mean study
*
Value not certified

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