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CE coupled with amperometric detection method was developed using ionic liquid 1‐ethyl‐3‐methylimidazolium tetrafluoroborate (EMImBF4) as additive for the simultaneous detection of clenbuterol (CLB), terbutaline (TER), and ractopamine (RAC) in feed. The effects of detection potential, concentration of EMImBF4, pH, and concentration of the running buffer, separation voltage as well as injection time...
A simple sample pretreatment device was developed employing extractions across supported liquid membranes (SLMs) and in‐line coupling to a commercial CE instrument. The device consisted of two polypropylene conical units interspaced with a polypropylene planar SLM, which were impregnated with 1‐ethyl‐2‐nitrobenzene. The two units and the SLM were pressed against each other, donor unit was filled with...
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