Matrix certified reference material of strawberry leaves METRANAL® CRM AN-BM01
ANALYTIKA: Matrix certified reference material of strawberry leaves METRANAL® CRM AN-BM01
Matrix certified reference material of strawberry leaves METRANAL® CRM AN-BM01
Packing:
25 g of powder of the strawberry leaves with a particle size of less than 100 µm in amber HDPE bottle. The sample is radiation stabilized.
ANALYTIKA: Matrix certified reference material of strawberry leaves METRANAL® CRM AN-BM01
Intended use:
This certified reference material is intended primarily for use in realizing metrological traceability, validation of analytical methods and the transfer of property values by total element contents to other materials of similar composition.
Recommended analytical methods for method dependent measurements:
Flame AAS, ETA-AAS, ICP-OES, ICP-MS
Metrological traceability:
Metrological traceability is realized by using certified calibration standards solutions for the calibration of measurement methods used (direct traceability to SI unit) and/or by simultaneous analysis of a matrix CRM (RM) of similar composition.
Storing and instruction for use:
This CRM have to be stored in original bottle and between 5-30°C (in a dark and dry place). The material should be analysed in the "as received" state and their dry weight should be determined on non-analysed aliquots oven-dried at 105°C till the constant weight. The material in the bottle must be rehomogenized before each use by mechanical shaking of the content for 1-2 minutes. The bottle should be opened a minimum of 2 minutes after rehomogenization in order to prevent an escape of fine powder particles from the bottle into the environment and their sedimentation.
Certified and indicative values and their uncertainties:
The certified and indicative values of total element contents are summarized in Table 1. The overall means evaluated have been given a status of certified and indicative values using the following criteria: data should be available from at least two independent analytical methods, at least 5 and 3 accepted laboratory means should be available for calculation of the overall mean for certified and indicative value, respectively. At combined uncertainties presented, the contribution of uncertainty of characterization of a particular property value is dominant.
ANALYTIKA: Table 1 - Certified and indicative values of total element contents and their associated
