Merck, NIST2669, Arsenic species in frozen human urine

General description
SRM 2669 contains five pouches, with each consisting of one vial of Level I and another vial of Level II arsenic species in frozen human urine, each measuring approximately 1.5 mL of urine. For more information, please refer to the SDS and COA.
SRM 2669_cert

SRM 2669 _SDS
Application
This Standard Reference Material (SRM) is intended for the validation of analytical methods and measurements to determine arsenic species in human urine.
Features and Benefits
Accompanied by NIST-certified values for arsenic species that are metrologically traceable to the SI unit of mass concentration, expressed in micrograms per liter.
Non-certified values for total arsenic are provided.
Expiration details, along with instructions for handling, storage, and use, are included on the NIST certificate.

Preparation Note
SRM 2669 is shipped on dry ice, and it should be stored at –80 °C until use. The material should be used within 4 h after being thawed.
Other Notes
Certified for the analytes listed below.
Arsenous acid (H3AsO3), Arsenic acid (H3AsO4), Monomethylarsonic acid (CH5AsO3), Dimethylarsinic acid (C2H7AsO2), Trimethylarsine oxide (C3H9AsO), Arsenobetaine (C5H11AsO2), Arsenocholine (C5H14AsO)

Reference/Informational value is provided for the following analytes.
Arsenic (As, Trimethylarsine oxide (C3H9AsO), Arsenocholine (C5H14AsO)

See certificate for values and more details at nist.gov/SRM.
SRM 2669 is intended for research use
Details on expiration, storage, safety, usage, and source are provided in the NIST certificate
Information on biomaterials, disposal, and transport is available in the SDS

Legal Information
NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology