Aqueous calibration solution ASTASOL® INT-MIX1

Aqueous calibration solution ASTASOL® INT-MIX1

• Category: Traced reference material
• Analytes: Bi, In, Sc, Tb, Y
• Product code: INT-MIX1

Starting primary compounds and theirs purities (%):

• Bi 99.999; In 99.999; Sc2O3 99.995; Tb4O7 99.998; Y2O3 99.99

Matrix:

• 5% HNO3 (v/v), prepared from sub boil distilled HNO3 (ANALPURE®) and ultrapure demineralized water (resistivity ≥ 18MΩ.cm, 0.22µm filtered)

Assigned concentration value and expanded uncertainty (k = 2) at 20°C

• Bi, In, Sc, Tb, Y 10.00 ± 0.05 mg/l 

Intended use: 

As a calibrator of analytical methods analysing aqueous solutions such as atomic spectrometry (AAS, AES, ICP-OES, ICP-MS), molecular absorption and selected electroanalytical methods. 

Characterization and traceability: 

This RM has an assigned value of concentration and uncertainty on the basis of gravimetric preparation. Traceability is realized with CRM AN 9008(1N), AN 9026(1N), AN 9052(1N), AN 9058(1N), AN 9067(1N) through a short unbroken chain of calibrations (AAS, AES, ICP-OES) or comparisons (primary analytical methods). All mentioned CRM AN are traceable to the corresponding SRMs NIST.

Trace impurities in bottled solution 

• Max. 0.02 mg/l (total) 

Homogeneity and stability: 

It has been demonstrated that this RM is homogeneous and its stability is guaranteed during the whole shelf life provided the solution it kept under conditions presented below. 

Storing and instruction for use: 

This RM has to be stored in the original closed bottle between 5 – 30 °C. The producer guarantees a declared expiration time provided the RM is properly stored and professionally handled. The temperature of the solution must be 20 ± 0.5 °C before every use. It is important to cover the screw cap and the neck of the bottle with a parafilm layer after each opening to prevent vapour phase losses. It is not recommended to use the standard solution when the bottle contains less than 10 % of the solution. Therefore, in case of nontransparent bottle, it is important to indicate the amount of the solution used,e.g. on the label. Do not pippette from the bottle. Do not return removed aliquots to bottle.