Round-robin test GeoPT 37A - SdAR-L2, Sediment - CRB GmbH
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Round robin tests XRF-analysis XRF Round-robin test - GeoPT37a, England - SdAR-L2, Blended Sediment

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT37A
Material of proficiency test:
SdAR-L2, (Blended Sediment)
Study finished:
2015 - 7
Literature:
Report - GeoPT37A Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O2,6802,6600,0590,250
MgO0,4300,4300,0100,000
Al₂O₃11,57011,5800,160-0,020
SiO₂74,57074,4800,7790,060
P₂O50,0840,0800,0020,850
K₂O4,0904,1000,066-0,080
CaO1,0801,0590,0210,510
TiO₂0,6230,6200,0130,110
Fe₂O₃ tot3,6203,6300,060-0,080
MnO0,0990,0990,0030,000
L.O.I. *0,8000,9300,090---

trace elements [µg/g]

CRBRV1sRVZ-Score
Ag*3,002,900,80---
As18,0016,900,900,61
Ba820,00809,0023,600,23
Ce130,00139,105,30-0,92
Cl *160,00166,0096,00---
Cr29,0026,001,301,18
Cu52,0050,802,200,27
F *823,00874,00378,00---
Ga15,0017,000,90-1,13
Ge1,601,600,100,00
Hf14,0016,300,90-1,35
La57,0067,902,90-1,89
Mo5,003,700,202,78
Nb57,0063,002,70-1,11
Nd51,0060,302,60-1,79
Ni14,0014,300,80-0,20
Pb162,00182,506,70-1,54
Pr14,0016,200,90-1,29
Rb125,00120,004,700,54
Sb22,0021,801,100,09
Sc6,005,600,300,56
Sm10,0011,500,60-1,15
Sr152,00150,005,600,17
Th26,0022,001,101,82
Tl1,000,990,100,09
V35,0035,001,600,00
Y45,0054,602,40-2,01
Zn208,00201,007,200,48
Zr600,00618,0018,80-0,48

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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