Certificate of Analysis

Component    Acetaldehyde-DNPH

Catalog No.     1 STI 022

CAS No.      1019-57-4

Molecular Formula       C8H8N4O4

MW     224.17   

Purity  (%)        99.0   

Certified   Cone.  (μg/ml)      9.8*   

      Unc. (%)       ±5

A Chemtek Inc. (ACT) guarantees that the neat component has been fully characterized such as NMR, Mass as well as other reliable methods, and the purity to be 土 0.5% deviation before the expiration date shown on the label and exclusive of any customer contamination. Gravimetric certification is based on the uncertainties of the balance and volumetric glassware used in the production. The uncertainty calculated fbr this standard is ±5%, The Uncertainty given is the expanded combined uncertainty and represents an estimated standard deviation equal to the positive square root of the total variance of the uncertainty of components. The expanded uncertainty is assumed with a coverage factor k=2 at a 95% confidence level. All measurements are traceable to SI Unit.

注：以上信息仅供参考，以产品附带证书为准。