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Description

Matrix reference material of loam with elevated analyte levels.
qMETRANAL34
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RM Matrix:
  • Soil
Type:
QCM
Package:
HDPE
Weight:
80 g

Metranal 34

Quality Control Material (QCM)

Matrix:

Loam, elevated analyte levels
Powdered material, grain size < 100 µm

Packing:

80 g in an amber HDPE bottle

Intended use:

The material is primarily designed for internal and external quality control purposes in the determination of total element contents and contents of element fraction extractable by the below described conventional procedures in soils and materials of similar matrix (quality control charts, interlaboratory comparisons, estimation of bias etc.) but not for ensuring traceability of measurements and calibration purposes.

Composition:

Element Total element content
(mg/kg)2)
Mean ± uncertainty3)
Extract by aqua regia1)
(mg/kg)2)
Mean ± uncertainty3)
As 49.6 ± 3.0 42.4 ± 2.2
Ba 568 217
Be 4.17 ± 0.18 2.69 ± 0.21
Cd 1.52 ± 0.15 1.44 ± 0.07
Co 20.0 ± 1.3 17.5 ± 0.9
Cr 82.2 ± 6.3 46.3 ± 3.8
Cu 183 ± 5 167 ± 1
Hg 0.223 ± 0.016 0.21
Mn 869 ± 34 741 ± 36
Ni 33.3 ± 1.1 30.4 ± 1.2
Pb 93.4 ± 3.4 83.1 ± 2.3
V 126 ± 7 95.1 ± 4.9
Zn 81.0 ± 7.6 69.4 ± 1.8

1) Aqua regia extractable content according to ISO 11466 (1995)
2) Dry weight at 105 °C
3) The half-width of a 95% confidence interval


Matrix composition (% of the oxides, dry weight)

Oxide %
SiO2 64.35
Al2O3 13.10
CaO 2.07
MgO 1.29
Fe2O3 5.82
K2O 2.55
Na2O 0.72
P2O5 0.45
TiO2 1.32
Loss on ignition at 900 °C 7.87
Declaration of quality of RM (COA-METRANAL34-EN-V03.pdf, 680 Kb) Download
Declaration of quality of RM 2 (COA-METRANAL34-EN-V04.pdf, 352 Kb) Download

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