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Inorganic Standards for Analysis

Check out ISO 17025/ISO Guide 34-accredited inorganic standards.

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Organic Standards for Analysis

Check out ISO 17025/ISO Guide 34-accredited organic standards.

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Certified pH Buffers

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Speciation Standards

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Products

Ammonia-Nitrogen Standard for Ion Chromatography, SPEX CertiPrep™

Chemical Name or Material: Ammonia-Nitrogen Standard CAS Min %: 0.1 CAS Max %: 0.1 CAS: 7732-18-5 CAS Min %: 99.9 CAS Max %: 99.9

Cesium Standard For ICP, 10,000μg/mL in 5% HNO3, SPEX CertiPrep™

CAS: 7789-18-6 Molecular Formula: CsNO3 Molecular Weight (g/mol): 194.909 InChI Key: NLSCHDZTHVNDCP-UHFFFAOYSA-N PubChem CID: 62674

BTEX Standard, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Perylene-d12, SPEX CertiPrep™

CAS: 1520-96-3 Molecular Formula: C20H12 Molecular Weight (g/mol): 264.389 InChI Key: CSHWQDPOILHKBI-AQZSQYOVSA-N PubChem CID: 622045

Calibration Standard 2A without Mercury For ICP/MS, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Mineral Oil, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Lithium 6 Isotope Standard For ICP/MS, SPEX CertiPrep™

CAS: 7439-93-2 Molecular Formula: Li Molecular Weight (g/mol): 6.94 InChI Key: WHXSMMKQMYFTQS-UHFFFAOYSA-N PubChem CID: 3028194 ChEBI: CHEBI:30145

Instrument Check Standard 3 For Ion Chromatography, SPEX CertiPrep™

Chemical Name or Material: Instrument Check Standard 3 CAS: 7732-18-5

Phenolics Mix, SPEX CertiPrep™

ISO/IEC Guide 34 Certified, NIST-Traceable Certified Reference Material

Sodium Standard Single Element Ion Standard - Cation, SPEX CertiPrep™

CAS: 7440-23-5 Molecular Formula: Na Molecular Weight (g/mol): 22.99 InChI Key: KEAYESYHFKHZAL-UHFFFAOYSA-N PubChem CID: 5360545 ChEBI: CHEBI:26708

Acrylonitrile, SPEX CertiPrep™

CAS: 107-13-1 Molecular Formula: C3H3N Molecular Weight (g/mol): 53.064 InChI Key: NLHHRLWOUZZQLW-UHFFFAOYSA-N PubChem CID: 7855 ChEBI: CHEBI:28217

Formaldehyde, SPEX CertiPrep™

CAS: 50-00-0 Molecular Formula: CH2O Molecular Weight (g/mol): 30.026 InChI Key: WSFSSNUMVMOOMR-UHFFFAOYSA-N PubChem CID: 712 ChEBI: CHEBI:16842

Calcium Standard For ICP, 1000μg/mL in 2% HNO3, Assurance Grade, SPEX CertiPrep™

CAS: 7440-70-2 Molecular Formula: Ca Molecular Weight (g/mol): 40.078 InChI Key: OYPRJOBELJOOCE-UHFFFAOYSA-N PubChem CID: 5460341 ChEBI: CHEBI:29320

Dimethyl Sulfate, SPEX CertiPrep™

CAS: 77-78-1 Molecular Formula: C2H6O4S Molecular Weight (g/mol): 126.126 InChI Key: VAYGXNSJCAHWJZ-UHFFFAOYSA-N PubChem CID: 6497 ChEBI: CHEBI:59050

Mercury Standard For ICP/MS, 10ppm in 5% HNO3, SPEX CertiPrep™

CAS: 7697-37-2 Molecular Formula: HNO3 Molecular Weight (g/mol): 63.012 InChI Key: GRYLNZFGIOXLOG-UHFFFAOYSA-N PubChem CID: 944 ChEBI: CHEBI:48107

GC/MS Tuning Standard, 4-Bromofluorobenzene, SPEX CertiPrep™

CAS: 460-00-4 Molecular Formula: C6H4BrF Molecular Weight (g/mol): 175 InChI Key: AITNMTXHTIIIBB-UHFFFAOYSA-N PubChem CID: 9993

ICP-MS Mercury Single Element Standard, SPEX CertiPrep™

CAS: 7439-97-6 Molecular Formula: Hg Molecular Weight (g/mol): 200.592 InChI Key: QSHDDOUJBYECFT-UHFFFAOYSA-N PubChem CID: 23931 ChEBI: CHEBI:16170

Mercury Organometallic Standards, SPEX CertiPrep™

CAS: 7439-97-6 Molecular Formula: Hg Molecular Weight (g/mol): 200.592 InChI Key: QSHDDOUJBYECFT-UHFFFAOYSA-N PubChem CID: 23931 ChEBI: CHEBI:16170

Hydrochloric Acid Calibration and Matrix Blank For ICP/MS, SPEX CertiPrep™

CAS: 7647-01-0 Molecular Formula: ClH Molecular Weight (g/mol): 36.458 InChI Key: VEXZGXHMUGYJMC-UHFFFAOYSA-N Synonym: Muriatic Acid PubChem CID: 313 ChEBI: CHEBI:17883

Diazald, SPEX CertiPrep™

CAS: 80-11-5 Molecular Formula: C8H10N2O3S Molecular Weight (g/mol): 214.239 InChI Key: FFKZOUIEAHOBHW-UHFFFAOYSA-N PubChem CID: 6628

Lithium Metaborate (100%), Fusion Flux Pure Crystal For Sample Preparation, SPEX CertiPrep™

CAS: 13453-69-5 Molecular Formula: BLiO2 Molecular Weight (g/mol): 49.748 InChI Key: HZRMTWQRDMYLNW-UHFFFAOYSA-N PubChem CID: 123308

Fluoride Standard for Ion Chromatography, SPEX CertiPrep™

Chemical Name or Material: Fluoride Standard For Use With (Equipment): AA, ICP, ICP/MS, IC, XRF, and other analytical instrumentation

Nitrite Standard for Ion Chromatography, SPEX CertiPrep™

Chemical Name or Material: Nitrite Standard For Use With (Equipment): AA, ICP, ICP/MS, IC, XRF, and other analytical instrumentation

Indole, SPEX CertiPrep™

CAS: 120-72-9 Molecular Formula: C8H7N Molecular Weight (g/mol): 117.151 InChI Key: SIKJAQJRHWYJAI-UHFFFAOYSA-N PubChem CID: 798 ChEBI: CHEBI:16881

Phosphorus Standard for ICP/MS, SPEX CertiPrep™

CAS: 7723-14-0 Molecular Formula: P Molecular Weight (g/mol): 30.974 InChI Key: OAICVXFJPJFONN-UHFFFAOYSA-N PubChem CID: 5462309 ChEBI: CHEBI:30207

Chloride Standard for Ion Chromatography, SPEX CertiPrep™

CAS: 12125-02-9 Molecular Formula: ClH4N Molecular Weight (g/mol): 53.489 InChI Key: NLXLAEXVIDQMFP-UHFFFAOYSA-N PubChem CID: 25517 ChEBI: CHEBI:31206

Silicon Standard For ICP, 1000μg/mL in H2O/0.24 F, Assurance Grade, SPEX CertiPrep™

CAS: 16919-19-0 Molecular Formula: F6H8N2Si Molecular Weight (g/mol): 178.153 InChI Key: ITHIMUMYFVCXSL-UHFFFAOYSA-P PubChem CID: 28145

1,1,1-Trichloroethane in Dimethyl Sulfoxide, SPEX CertiPrep™

CAS: 71-55-6 Molecular Formula: C2H3Cl3 Molecular Weight (g/mol): 133.396 InChI Key: UOCLXMDMGBRAIB-UHFFFAOYSA-N PubChem CID: 6278 ChEBI: CHEBI:36015

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About SPEX CertiPrep

Founded in 1954, SPEX CertiPrep is a leading manufacturer of certified reference materials (CRMs) and calibration standards for analytical spectroscopy and chromatography. We offer a full range of inorganic and organic CRMs. We are certified by UL-DQS for ISO 9001:2008 and are proud to be accredited by A2LA under ISO/IEC 17025:2005 and ISO/IEC Guide 34-2009. The scope of our accreditation is the most comprehensive in the industry and encompasses all our manufactured products.