Imagine that four students try to hit the bulls-eye five times. Let’s use a target analogy to demonstrate the difference between accurate and precise results. Recall the relationships between volume units:Īccuracy depends on the micropipette delivering the correct volume. You may use microliters or milliliters as the units of volume in your lab notebooks and lab reports, but be careful to always state the volume unit that you are using. Micropipettes are precision instruments that are designed to accurately and precisely transfer volumes in the microliter range. Associate Professor Emeritus (Biology) at Boston CollegeĪrguably, the most important scientific equipment that you will use in this class are adjustable micropipettes, which you will use in nearly every experiment.