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 an NMI, e.g. NIST.   

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

Download your certificate at  https://www.sigmaaldrich.com/US/en/documents-search  to view certified values, including uncertainty and expiry date.

Multielement standard solution IV can be used as a calibration standard in the determination of (ultra-)trace and spectrally interfered elements like Ag, Cd, V, Cr, As and Se in water using sector field inductively coupled plasma mass spectrometry method (ICP-MS).

100ml in HD-PE bottle

Ag (silver): 1000 mg/l
Al (aluminium): 1000 mg/l
B (boron): 1000 mg/l
Ba (barium): 1000 mg/l
Bi (bismuth): 1000 mg/l
Ca (calcium): 1000 mg/l
Cd (cadmium): 1000 mg/l
Co (cobalt): 1000 mg/l
Cr (chromium): 1000 mg/l
Cu (copper): 1000 mg/l
Fe (iron): 1000 mg/l
Ga (gallium): 1000 mg/l
In (indium): 1000 mg/l
K (potassium): 1000 mg/l
Li (lithium): 1000 mg/l
Mg (magnesium): 1000 mg/l
Mn (manganese): 1000 mg/l
Na (sodium): 1000 mg/l
Ni (nickel): 1000 mg/l
Pb (lead): 1000 mg/l
Sr (strontium): 1000 mg/l
Tl (thallium): 1000 mg/l
Zn (zinc): 1000 mg/l

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

For detailed information for our newly launched ICP-Multi element Standards check the flyer: Commitment to Quality: Elevating Certipur^® Standards to Certified Reference Material

In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website.

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

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