Combining electroless ionisation mass spectrometry with solid-phase extraction for the direct analysis of beta-agonists in bovine urine
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A novel method combining electroless ionisation mass spectrometry (ELI-MS) with solid-phase extraction (SPE) cartridges enables direct analysis of beta-agonist residues in bovine urine (SPE-ELI-MS). Using a syringe plunger and a battery-powered DIY syringe pum... ...
