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How Do I Choose a Sampler?

This is one of the most common questions we are asked. Even though there is no direct answer as every situation is different there are numerous factors that need to be considered when deciding on the best sampler. Usually poor sampling results are a direct result of not choosing the correct tool. For example a common mistake is a free flowing powder sampler is used when the powder being sampled is poor flowing (more on this later).


Pipetting is the accurate one-time uptake and delivery of liquids. An air interface pipette is used for pipetting aqueous liquids in the microliter to milliliter range. It operates by the air interface principle.