Each Calibration Standard for AA and ICP is supplied with a comprehensive Certificate of Analysis that documents the quality and reliability.
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Concentration of Elements includes:
Tellurium, 10% HNO3,1,000 µg/mL, Pure Grade Standard, 125 mL
Tantalum (Ta) Pure Standard, 1,000 µg/mL, H2O/0.8% HF, 125 mL