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Reference Materials

Certified Reference Materials

NIST-traceable single- and multi-element standards, ICP solutions, and high-purity primary standards for calibration, validation, and titrimetry.

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Showing 115 of 24 products

Inorganic Elemental TM-IE-001

Lead (Pb) Single-Element Standard

NIST-traceable lead standard in 2% nitric acid. ISO 17034 certified. Suitable for AAS, ICP-OES, and UV-VIS methods.

CAS
7439-92-1
Concentration
1000 mg/L
Matrix
2% HNO₃
FAAS GFAAS ICP-OES UV-VIS
100 mL 250 mL 500 mL
Inorganic Elemental TM-IE-002

Cadmium (Cd) Single-Element Standard

High-purity cadmium standard certified against NIST SRM 3108. Used in environmental, food safety, and industrial QC labs.

CAS
7440-43-9
Concentration
1000 mg/L
Matrix
2% HNO₃
FAAS GFAAS ICP-OES
100 mL 250 mL 500 mL
Inorganic Elemental TM-IE-003

Arsenic (As) Single-Element Standard

NIST-traceable arsenic standard prepared from NBS/NIST reference materials. Suitable for hydride generation AAS and ICP methods.

CAS
7440-38-2
Concentration
1000 mg/L
Matrix
2% HNO₃
HGAAS ICP-MS ICP-OES
100 mL 250 mL 500 mL
Inorganic Elemental TM-IE-004

Mercury (Hg) Single-Element Standard

Stabilized mercury standard in 10% nitric acid with trace dichromate to prevent precipitation. For CVAAS and ICP-MS analysis.

CAS
7439-97-6
Concentration
1000 mg/L
Matrix
10% HNO₃
CVAAS ICP-MS
100 mL 250 mL
Inorganic Elemental TM-IE-005

Iron (Fe) Single-Element Standard

High-purity iron standard for AAS, ICP-OES, and colorimetric methods. Traceable to NIST SRM 3126a.

CAS
7439-89-6
Concentration
1000 mg/L
Matrix
2% HNO₃
FAAS ICP-OES UV-VIS
100 mL 250 mL 500 mL
Inorganic Elemental TM-IE-006

Copper (Cu) Single-Element Standard

NIST-traceable copper standard prepared from high-purity metal dissolved in nitric acid. For drinking water, food, and environmental analysis.

CAS
7440-50-8
Concentration
1000 mg/L
Matrix
2% HNO₃
FAAS GFAAS ICP-OES
100 mL 250 mL 500 mL
Inorganic Elemental TM-IE-007

AAS Heavy Metals Mix — 8 Elements

Multi-element standard containing As, Cd, Cr, Cu, Ni, Pb, Se, and Zn at 100 mg/L each. For routine water quality screening.

Concentration
100 mg/L each
Matrix
2% HNO₃
FAAS ICP-OES ICP-MS
100 mL 500 mL
Inorganic Elemental TM-IE-008

Selenium (Se) Single-Element Standard

NIST-traceable selenium standard. Suitable for HGAAS, GFAAS, and ICP-MS analysis in nutritional and environmental samples.

CAS
7782-49-2
Concentration
1000 mg/L
Matrix
2% HNO₃
HGAAS GFAAS ICP-MS
100 mL 250 mL 500 mL
ICP-MS & ICP-OES TM-ICP-001

ICP Multi-Element Standard I — 23 Elements (EPA 200.7)

EPA Method 200.7 compliant 23-element solution covering Al, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Tl, V, and Zn.

Concentration
10 mg/L each
Matrix
2% HNO₃
ICP-OES
100 mL 250 mL 500 mL
ICP-MS & ICP-OES TM-ICP-002

ICP-MS Multi-Element Standard II — 22 Elements (EPA 6020A)

EPA 6020A ultra-trace 22-element solution for ICP-MS environmental analysis of drinking water and waste waters.

Concentration
10 µg/L each
Matrix
2% HNO₃
ICP-MS
100 mL 250 mL
ICP-MS & ICP-OES TM-ICP-003

Rare Earth Elements Mix — 15 Lanthanides

Complete set of 15 lanthanide elements (La–Lu) for REE profiling by ICP-MS in geological, environmental, and high-tech materials.

Concentration
1 mg/L each
Matrix
3% HNO₃ / 1% HF
ICP-MS ICP-OES
100 mL 250 mL
ICP-MS & ICP-OES TM-ICP-004

ICP-MS Internal Standard Mix — Sc, Y, In, Tb, Bi

Five-element internal standard mixture (Sc, Y, In, Tb, Bi) covering the full mass range of ICP-MS for drift correction and signal normalization.

Concentration
10 mg/L each
Matrix
2% HNO₃
ICP-MS
100 mL 250 mL
ICP-MS & ICP-OES TM-ICP-005

ICP-MS Instrument Tune Solution — 6 Elements

Daily instrument tuning solution containing Li, Co, In, Ce, Bi, and Ba for optimization of ICP-MS sensitivity, resolution, and oxide ratios.

Concentration
10 µg/L each
Matrix
2% HNO₃
ICP-MS
100 mL 500 mL
ICP-MS & ICP-OES TM-ICP-006

Platinum Group Elements Mix — Pd, Pt, Rh, Ru, Ir, Os

Six platinum group elements (PGE) in a mixed acid matrix for autocatalyst, geological, and semiconductor ICP-MS analysis.

Concentration
10 mg/L each
Matrix
5% HCl / 2% HNO₃
ICP-MS ICP-OES
100 mL 250 mL
ICP-MS & ICP-OES TM-ICP-007

Ultra-Trace Heavy Metals Standard — 8 Elements

Sub-ppb multi-element standard (As, Cd, Cr, Hg, Ni, Pb, Se, Tl) for ultra-trace ICP-MS analysis of drinking water per EU Directive 98/83/EC.

Concentration
1 µg/L each
Matrix
1% HNO₃
ICP-MS
100 mL 250 mL
ICP-MS & ICP-OES TM-ICP-008

ICP-OES Calibration Blank — 2% HNO₃

Sub-ppb grade ultrapure 2% nitric acid blank matrix for ICP-OES and ICP-MS calibration sequences and method blanks.

Concentration
100 mg/L each
Matrix
2% HNO₃
ICP-OES ICP-MS
500 mL 1 L
High-Purity Powders TM-P-001

Potassium Hydrogen Phthalate (KHP) — Primary Standard

NIST SRM 84k-equivalent primary standard for acidimetry. Oven-dried and certified by coulometry. Molar mass 204.22 g/mol.

CAS
877-24-7
Purity
≥ 99.95%
Acidimetry pH Calibration Karl Fischer
10 g 50 g 100 g 500 g
High-Purity Powders TM-P-002

Sodium Oxalate — Primary Standard

High-purity anhydrous sodium oxalate primary standard for permanganate titrations and redox standardization.

CAS
62-76-0
Purity
≥ 99.9%
Redox Titration Permanganometry
10 g 50 g 100 g
High-Purity Powders TM-P-003

Anhydrous Sodium Carbonate — Primary Standard

Primary standard grade anhydrous Na₂CO₃ for acidimetry and standardization of hydrochloric acid solutions.

CAS
497-19-8
Purity
≥ 99.9%
Acidimetry Alkalimetry
10 g 50 g 100 g 500 g
High-Purity Powders TM-P-004

Calcium Carbonate — Primary Standard

Ultra-pure CaCO₃ primary standard for hardness calibration and preparation of calcium standard solutions for AAS and ICP.

CAS
471-34-1
Purity
≥ 99.95%
Titrimetry ICP Standards Prep AAS
10 g 50 g 100 g
High-Purity Powders TM-P-005

EDTA Disodium Salt Dihydrate — Chelometric Standard

Chelometric primary standard grade EDTA·2Na·2H₂O for complexometric titrations of water hardness and metal ion determination.

CAS
6381-92-6
Purity
≥ 99.9%
Complexometry Water Hardness
10 g 50 g 100 g 500 g
High-Purity Powders TM-P-006

Sodium Chloride — Primary Standard

Oven-dried NaCl primary standard for argentometric and mercurimetric titrations and preparation of chloride calibration standards.

CAS
7647-14-5
Purity
≥ 99.95%
Argentometry IC Standards Prep
10 g 50 g 100 g 500 g
High-Purity Powders TM-P-007

Potassium Dichromate — Primary Standard

Primary standard K₂Cr₂O₇ for iodometric, cerimetric, and COD determinations. Traceable to NIST SRM 136f.

CAS
7778-50-9
Purity
≥ 99.9%
Iodometry COD Redox
10 g 50 g 100 g
High-Purity Powders TM-P-008

Benzoic Acid — Calorimetric Standard

NIST SRM 39j-equivalent benzoic acid calorimetric standard (ΔHc = 26.434 kJ/g). Used for bomb calorimeter calibration.

CAS
65-85-0
Purity
≥ 99.97%
Calorimetry Bomb Calorimeter
5 g 10 g 25 g