Unlock high-confidence trace element analysis with the Alloy Geek Rare Earth Element Reference Material - Low Concentration, derived from a carbonatite-based ore and certified under ISO 17034 standards. This material, also designated AG-REE-LO, is engineered for applications requiring precision calibration of analytical instruments like XRF.

This low-level REE material features a light rare earth oxide concentration of 0.35 wt%, with values determined through WD-XRF (with Li-borate fusion), ICP-MS, and ICP-OES techniques. It is ideal for laboratories seeking robust quality control, method validation, and trace rare earth calibration in geochemical and industrial applications.

Key Features:

• Certified Reference Material (CRM) – Produced under ISO 17034 accreditation
• Homogeneous Powder Blend – Based on carbonatite ore and Georgia-sourced CaCO₃
• Wide Elemental Range – Major, minor, and trace elements including Ce, La, Nd, Pr, Sm, Eu, Y
• Multi-Technique Compatible – Calibrate XRF, ICP-MS, and ICP-OES
• Shipped from the USA – Quick delivery with support from Alloy Geek

Applications:

• Calibration of XRF instruments
• Quality control for REE geochemistry
• Method development in industrial laboratories
• Education and research involving REEs in carbonate matrices

Certified Composition:

Major Elements (wt% and Oxide Equivalents):

Element	wt%	Oxide	wt%
Al	0.16	Al₂O₃	0.31
Ba	0.67	BaO	0.75
Ca	35.94	CaO	50.3
Ce	0.14	CeO₂	0.18
Fe*	0.20	Fe₂O₃	0.29
K	0.029	K₂O	0.035
La	0.10	La₂O₃	0.12
Mg	1.7	MgO	2.8
Mn	0.028	MnO	0.037
Nd	0.034	Nd₂O₃	0.040
P	0.041	P₂O₅	0.095
Pr	0.013	Pr₆O₁₁	0.015
S	0.20	SO₃	0.49
Si	0.88	SiO₂	1.9
Sr	0.19	SrO	0.22
Ti	0.012	TiO₂	0.019
LREE	0.29	LREEO	0.35

*Iron reported as Fe₂O₃ (ferric oxide equivalent)
Loss on Ignition (LOI): 42.1 wt% (110 °C to 1000 °C)

Trace Elements (mg/kg):

Element	Value (mg/kg)	Element	Value (mg/kg)	Element	Value (mg/kg)
Dy	2.6	Pb	149	Th	9.8
Eu	4.2	Rb	1.5	U	1.8
Ho	0.38	Sc	0.85	Y	10
Lu	0.07	Sm	24	Yb	0.50
Nb	2.5

 

Produced to ISO 17034 with ISO/IEC 17025 Accredited Chemical Testing in an ISO 9001 Certified Quality Management System.

Available as powder pressed into a 32mm sample cup. XRF Film provided is 6um XRF grade polypropylene. End user may swap film to the film of their liking. Amount of sample: 10g.