A Remote Pipeting Device A safe, convenient, and inexpensive remote pipeting device for l-ml disposable pipets can be constructed from 3.0-ml (or smaller) disposable syringes. The needle is removed from the syringe and the coupling between the syringe and the pipet is effected by modifying the plastic needle guard (see illustration). The syringe-to-pipet coupler is made
by cutting the closed end ot thr plastir n ~ e d l ew a r d a v a y ~n such a rnanncr rhnt the p a r d will fit tightly over the "Luer" taper joint of the syringe. The pipet can t h e n he inserted into the conical opening of the plastic needle guard. Filling and emptying the pipet is achieved b>, manipulating the piungw 01 t h e svringe with the thumb and farefinaer. The device has been used routinely for several years in our laboratory in metabolic radiotracer studies with microorganisms. Dwight E. Talburt Dale A. Johnson
The University of Arkansas Fayetteville, Arkansas 72701
Volume 5 1 , Numberg. September 1974
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