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Tungsten Standard for ICP

TraceCERT®, 1 g/L W in nitric acid and hydrofluoric acid (nominal concentration)

Synonym(s):

Tungsten ICP Calibration Standard

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About This Item

UNSPSC Code:
41116107
NACRES:
NA.24

grade

certified reference material
TraceCERT®

Quality Level

product line

TraceCERT®

concentration

1 g/L W in nitric acid and hydrofluoric acid (nominal concentration)

technique(s)

ICP: suitable

application(s)

industrial qc
pharmaceutical

format

single component solution

General description

This certified reference material (CRM) is produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. This CRM is traceable to SI unit kg and measured against primary material from a National Metrology Institute (NMI), e.g. NIST.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.

Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty, date of expiry, and detailed information about trace impurities.

Application

Tungsten Standard for ICP has been used as a standard stock solution in the determination of tungsten concentration in bulk drugs and intermediates using high performance liquid chromatography combined with inductively coupled plasma mass spectrometry method (HPLC-ICP-MS).

Analysis Note

1 g/L W in 5% nitric acid and 2% hydrofluoric acid, prepared with high purity W metal, HNO3, HF, and water

Other Notes

For a complete product listing of our TraceCERT® range of CRMs for ICP and AAS, technical information, and example certificates please visit our ICP & AAS standards website

Legal Information

TraceCERT is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Skull and crossbonesCorrosion

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Acute Tox. 4 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

Supplementary Hazards

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品
易制爆化学品

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The determination of tungsten, molybdenum, and phosphorus oxyanions by high performance liquid chromatography inductively coupled plasma mass spectrometry
Wang T, et al.
Talanta, 72, 1828-1832 (2007)

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