Experiment+1+-+Pipetting

=Experiment 1 - Pipetting=

Appendix VII: pages 361-362 ||= Biochemists usually work with solutions and need to meaure volumes accurately. This lab exercise is designed to give you experience measuring with a pipet bulb and with a micropipetter. **When reading a pipet, be sure to read volume at eye level. The volume is read at the lowest point of the meniscus (the curved water surface). Remember, pipets are calibrated from top to bottom.** ||
 * ~ Objectives of Experiment ||~ Reading in //Boyer// ||~ Principle of Experiment ||
 * = To Learn to measure liquids accurately and precisely using glass pipets and with a micropipetter ||= Chapter 1: pages 1-34

Important Things to Remember from this lab:

 * Accuracy:
 * [[image:http://img34.imageshack.us/img34/5016/eqn5363.png width="800" height="50"]]
 * Precision (Version 1)
 * [[image:http://img607.imageshack.us/img607/5016/eqn5363.png]]
 * Precision (Version 2)
 * [[image:http://img819.imageshack.us/img819/5016/eqn5363.png]]
 * [[image:http://img687.imageshack.us/img687/5016/eqn5363.png]]
 * **The difference between absolute error (accuracy) and deviation (precision) is that accuracy relates a measured value to the true, known value, and precision relates and individual measured value to the average of all like measurements**
 * **Use Version 1 of Precision when n<6. Use Version 2 when n>=6**