304430 Method development of an extraction of polar pesticides from rape - Improved pH and sample volume

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Method development of an extraction of polar pesticides from rape - Improved pH and sample volume

Summary

Type: SPE
Application #: 304430
Catalog#: 730108 - SPE Cartridges, Chromabond, HR-P, 3ml, PP, 200mg 30/pk
Detection: The extracted sample is determinated by LC/ESI-MS/MS by a polar RP column (e.g. NUCLEODUR® C18 Pyramid) with methanol / 10 mM ammonium acetate gradient.
Conditions: Column conditioning: 3 ml methanol, then 3 x 3 ml of a solution in reference to the applied sample: - water - buffer solution of pH 4 - buffer solution of pH 4 - 0.1% phosphoric acid solution of
Authors: Pantiru M E
Source: Dissertation Wissenschaftszentrum Weihenstephan f&


Details


Legend: Recovery rates of acidic and basic pesticides from rape extract with improved pH of 2 and sample volume of 50 ml, determinated by LC-MS/MS (positive ion mode): Only with the adjusted pH 2 and a sam