Saxitoxin (STX) [1] is found in both marine microalgae [2] and freshwater cyanobacteria [3]. CRM-STX-g is a certified reference material (CRM) calibration solution of STX in aqueous 0.5 mM hydrochloric acid, designed to aid in the identification and quantitation of STX. This is a replacement calibration solution for CRM-STX-f.
Compound |
Concentration µmol/L
(15-30 °C) |
| saxitoxin (STX) |
61.4 ± 2.4
|
saxitoxin dihydrochloride
CAS registry number:35554-08-6
Molecular formula: C10 H19N7O4Cl2
Molar mass: 372.2 g/mol
Period of validity: 1 year from date of sale
Storage conditions: +4 °C
Intended use
CRM-STX-g is a certified calibration solution designed for analytical method development and accurate quantitation of STX. The concentration is suitable for preparing a dilution series for calibration of instruments such as liquid chromatography with detection by pre/post-column oxidation-fluorescence (LC-ox-FLD) or liquid chromatography-mass spectrometry (LC-MS), as well as for spiking control samples for recovery experiments.
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