Liquid-liquid extractions are used across a wide variety of analytical applications and industries. Examples include detecting organic additives, such as vitamin D, in foods; testing for aflatoxins in wheat and cannabis production; iron extraction in cobalt and copper mining. It’s even found in healthcare, with the detection of steroids and other drugs in the blood. In many cases, labs prefer the traditional separatory funnel for liquid-liquid separations, which is surprising given the many benefits of phase separator paper. So what is the difference between the two methods and why might you consider one over the other?
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