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Fluorescein disodium salt dihydrate
KF NEEDLE (22s/51/3) 6/pk
the split vent is closed so that the vaporized analyte passes onto the column
Different derivatization reagents in a kit for development of a suitable derivatization method (alkylation)
Resorcinol-13C6
Derivatization reagents for GC, acylation, MBHFBA 5190-8522 Fluorescein disodium salt dihydrateBisacylamides like MBHFBA form corresponding neutral acylamides, which can be easily removed due to their high volatility. Due to neutral conditions and favourable chromatographic properties often removal of the acylamide is not necessary. Thus sample preparation is much more convenient. Acylation with MBTFA also forms very volatile derivatives with carbohydrates. These products contain harmful substances which must be specially labeled as hazardous.