Bruker minispec mq20, User Manual, Page: 35 / 86

Running the minispec mq20 Toothpaste Analyzer
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During Daily Check, the system runs a number of tests, all following one after the other.
If all the tests passed, the software will indicate this accordingly. The corresponding message
will also be displayed in the main menu.
7.3 Calibrations
TD-NMR is a secondary technique and as such the Toothpaste Analyzer needs to be
calibrated with reference standards.
For all other applications the customer will need to calibrate the system with their own
reference standards. Typically 4-6 standards with known reference values are needed per
calibration line. In most cases the mq20 Toothpaste Analyzers are calibrated in a classical
way, i.e. the NMR signals of FID or Hahn-echo (or both) are considered and the
corresponding amplitudes are correlated with the sample properties.
For different types of samples (like different types toothpaste or mouthwash) the user may
need to create different calibration lines, one line per type of sample. It is recommended to
name the calibrations accordingly.