Ivermectin in tissue is analysed with an ODS column using a mobile phase of acetonitrile-water (9:1) at 65°C. Ivermectin is detected fluorometrically at 272 nm excitation, 465 nm emission, with a detection limit of 0.25 ngg-1. Tissue sample is loaded onto a C8 solid-phase extraction column, eluted with acetonitrile, and the eluate dried under a stream of N2. The dried residue is dissolved with ethy1 acetate-hexane (2 : 3), loaded on a silica column, and eluted with methanol-ethyl acetate (1 : 1). The eluate is dried under a stream of N2 and treated with trifluoroacetic anhydride and methyl-imidazole. The analyte thus obtained is injected into an HPLC.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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