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Round robin tests XRF-analysis XRF Round-robin test IRMA - GSPN-2, Manganese ore

Study organized by:
Institute of Rock and Mineral Analysis (IRMA) of the Chinese Academy of Geological Sciences
Material of proficiency test:
GSPN-2 (marines Sediment, Manganerz)
Study finished:
1995 - 11
Literature:
GEOSTANDARDS NEWSLETTERS, Vol. 19, No. 2, 1995, GEOSTANDARDS NEWSLETTERS, Vol. 22, No. 1, 1998

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O3,1002,5200,303
MgO2,9003,0100,120
Al₂O₃5,3705,0900,280
SiO₂16,02015,0500,730
P₂O50,4900,5700,060
SO₃0,3300,3000,080
K₂O1,1001,0500,070
CaO2,8902,8600,180
TiO₂1,5401,3200,070
Fe₂O₃ tot10,42010,4900,590
MnO23,30024,2900,770 

trace elements [µg/g]

CRBRV1sRVZ-Score
As73,0099,0033,00
Ba1900,001800,00200,00
Cd12,0010,002,00
Ce583,00622,0065,00
Cl7700,007100,00900,00
Co2600,002800,00160,00
Cr10,0020,00 
Cu6000,006700,00400,00
La220,00184,0023,00
Mo480,00485,0022,00
Nb54,0047,009,00
Ni9600,0010200,00800,00
Pb687,00709,0063,00
Rb6,0016,002,00
Sr823,00853,0095,00
V547,00452,0037,00
Zn850,00910,00150,00
Zr647,00612,0069,00

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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