Sulfonamides

Various sulfonamides are analysed with an ODS column using a mobile phase composed of acetic acid-triethylamine-water-acetonitrile-methanol (0.4 : 0.2 : 710 : 100 : 100) and detection at 254 nm. Sulfonamides in formulations are extracted or dissolved using dimethylformamide, methanol or the mobile phase.

Sulfonamides in body fluids are analysed with an ODS column using a mobile phase consisting of acetonitrile-water (1:9, changing to 9 : 1 in 10 min). Detection is either UV at 254 nm or with a mass spectrometer. Sulfonamides are extracted with hexane-dichloromethane-ether (1:1:1) at pH 3.0-3.2.

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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