This application note describes the method development of an on-line automated solution for phenolic and chlorinated phenolic compounds with derivatisation by N,O-Bis(trimethylsilyl)trifluoroacetamide (BSTFA). Development was in conjunction with Paul Leather, Environment Agency in July-Aug 2016. This method uses an automated liquid-liquid extraction with vigorous agitation using the mVorx and derivatisation by agitation and heating on the GERSTEL Agitator.
This initial investigation demonstrates how the improved sensitivity of the 5977B can offer the option of different approach to LLE for phenols in water.
Sensitivity at the lowest calibration level of 50 ng/L was demonstrated for all 26 evaluated phenols. If required, a larger injection volume, optimization of the LLE or instrument settings could be utilised to achieve lower limits of detection.
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Initial Work for Automation of a BSTFA Derivatisation for Phenolic Compounds in Water