Reference Material

ThiscertificateisdesignedinaccordancewithISO17034andISOGuide31.Thisreferencematerial(RM)wasdesigned, producedandverifiedinaccordancewithISO/IEC17025,ISO17034andaregisteredqualitymanagementsystemISO 9001.

CAS No.55335-06-3

Mol. Weight  256.47

Mol. Formula  C₇H₄Cl₃NO₃

StorageTemp  20°C ± 4°C

 Uncertainty
The certified value(s) and uncertainty(ies) are determined in accordance with ISO 17034 with an 95% confidence level (k=2). Uncertainty is based on the Total Combined Uncertainty, including uncertainties of characterisation, homogeneity and stability testing. Stability values are based on real evidence opposed to simulation.

Method of Characterisation    
Purity = 100% – Assay impurities – Water content (KF)
Method of Identification    
EA, NMR, RT, UV, IR, MS    
Batch Information    
Water Content: <0.10% (g/g) by Karl-Fischer-Titration (U(exp) = 0.08% (g/g)).
Method Details:    
Eluent A: 100% Acetonitrile    
Eluent B: Water + 0.5% H3PO4  

Intended Use
This RM is intended for use in a laboratory as a calibration and quality control standard or in method development for analytical techniques.

Safety
Proper precautions should be observed while handling. See Safety Data Sheet.

Traceability
The balances used for gravimetric measurements are calibrated with weights traceable to the national standards (DKD). The calibration ofthe balances is verified daily internally and annually by an external accredited calibration service. Chromatographic methods are traceable to the International System of Units (SI).

Homogeneity
Random replicate samples of the final packaged RM have been analysed to prove homogeneity compliant with ISO 17034.

Storage
The RM should be stored in the original sealed container at the indicated temperature.

Instructions for use
It is recommended to use 1 mg as the minimum sample size and if less material is used, to increase the certified uncertainty by a factor of two for half sample and four for a quarter of sample. If storage after opening is necessary, the RM should be tightly closed and kept from light and moisture. If the RM was in a sealed ampoule, it should be transferred to a vial with minimum head space. Visit the support section of our website lgcstandards.com for a series of
Dr. Ehrenstorfer Tech Tip videos and frequently asked questions.
 

注：以上信息仅供参考，以产品附带证书为准。