Table T10. Reproducibility for analytical determinations, Leg 207.
Parameter
Method
Reproducibility
Alkalinity Gran titration 1.5%
Cl Titration with AgNO3 0.1%
K+ ICP-AES 0.02%
Mg2+ ICP-AES 0.1%
Ca2+ ICP-AES 0.2%
SO42– Ion chromatography 0.1%
Si(OH)4 Spectrophotometry 2 mM
NH4+ Spectrophotometry 4 mM
HPO42– Spectrophotometry 0.2 mM
Fe2+ ICP-AES 2.3%
Mn2+ ICP-AES 2.3%
B ICP-AES 2.4%
Li+ ICP-AES 4.4%
Sr2+ ICP-AES 1.0%
Ba2+ ICP-AES 1.1%

Note: ICP-AES = inductively coupled plasma–atomic emission spectroscopy.