Provisional certified values of JCp-1 and JCt-1
Okai et. al. Chikyukagaku (Geochemistry), 38, 281-286 (2004)
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JCp-1 JCt-1
“
X SD X SD
CaO 53.50 0.28 54.66 0.16
ƒΚg g-1
Ba 10.3 0.5 6.1 0.4
Fe 29 2 16 2
K  185 8 89 8
Mg 972 8 295 4
Mn 1.0 0.1 0.38 0.03
Na 4350 30 4440 20
P 4.1 0.9
Sr 7240 70 1410 50
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Uncertainty is 95% confidence limits.
GSJ analytical results for other components
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@ @ JCp-1 @ @ @ JCt-1 @ @ @ ‚Ž @ @ @ Method @ @ @
(“)
SiO2 0.37 0.36 0.14 0.14 4 14(20) AAS photom.
H2O+ 0.98 1.04 12 penfield
H2O- 0.48 0.56 0.22 0.18 14(20) Grav. Grav.
LOI 44.28 44.36 44.61 44.27 4 14(20) Grav. Grav.
(ƒΚg g-1)
Al 490 480 270 280 14(20) 4 ICP-AES AAS
B 47.7 19.4 14(20) ICP-AES
Cd 0.028 0.032 0.0016 0.0028 4 8(7) AAS* ICP-MS
Cl 584 95 4 photom.
Co 0.52 0.30 8 ICP-MS
Cr 0.14 6 ICP-MS
Cs 0.0022 0.0012 8 ICP-MS
Cu <0.5 0.68 <0.8 0.87 4 8(3) AAS ICP-MS
Li 1.3 0.38 0.5 0.21 4 8(4) AAS ICP-MS
Mo 0.08 0.070 0.02 0.010 4 8(6) AAS* ICP-MS
Pb 0.18 0.10 8(4) ICP-MS
Rb 0.082 0.032 8 ICP-MS
Sn 0.061 0.0040 7(4) ICP-MS
T-S 1920 1900 192 193 14 ICP-AES CEA
U 2.9 0.049 8 ICP-MS
V 0.16 0.032 8(6) ICP-MS
W 0.28 0.24 8(6) ICP-MS
Zn 0.5 <2 0.5 <2 4 14(20) AAS ICP-AES
Zr 0.42 5 ICP-MS
(ng g-1)
Ag 29 14 5 2.3 4 8(9) AAS* ICP-MS
Au 0.04 0.09 4 AAS*
Hg 2.3 0.2 4 AAS**
Tl <0.7 <0.7 4 AAS*
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‚ŽFnumber of determinations, in ( ) only JCt-1CCEAFCombustion Elemental AnalyzerC LOIFLoss on ignitionC
T-FTotalCAAS*Fsolvent extraction flameless AASCAAS**Felectrothermal vaporization coldvapor AAS