[FIGURE 10 OMITTED] Materials * roll of Whatmann chromatograph paper (2 cm wide) * test tubes 25 X 200 mm * test tube rack * crucibles (as a small mortar) * glass rods as pestle * acidified methanol (1 drop HCl to 12 ml methanol) * water * disposable pipets
(or capillary tubes) for spotting * Cleome petals (violet and red) Activities 1.
Inoculate 1 ml of the sample water to the tube labeled [10.sup.-1] using a sterile 1-ml plastic pipet
Using transfer pipets
or pipettors, students dispense 1 ml of the liquid bacterial media into five of their test tubes.
Cost of equipment for a tumor immunology lab Approximate Instrument cost Laminal flow hood $ 8,000 [CO.sub.2], water-jacketed incubator 5,000 Water baths, shakers, rockers 1,000 Inverted microscope 4,500 Cryostat, liquid nitrogen tank 12,000 Pipet
guns 800 Micropipets, adjustable 500 Beta counter 17,000 Gamma counter 7,000 Cell harvester 5,000 Heater 500 pH meter 500 Osmometer 900 Total $ 62,700
Contract awarded for warehouse stock nre august - sleeveless palsticas bibs, pipets
pasteur plastic, disposable plates, plates colostomy bag, silver nitrate for analysis, ponceau, port a cath introductory low profile c
Dropstirs single use dispensing pipets
are available in standard and custom sizes to meet specific needs.
A sectioned drawer in the bench held a collection of pipets
, neatly arranged by size.
Ignoring the use of pure lab water supplies and systems, the most common liquid handling devices used by lab personnel are pipets
(all types and accessories}, syringes, filters and containers.
Zymark has developed program modules to operate different robot peripherals-such as vortexers, cappers, pipets
, and syringe pumps-and a user just puts the modules together.
Systems such as Labconco's FlaskScrubber also have inserts that attach to the washer's spindle rack that allow the interior of glass pipets
to be injected with water and detergent for washing, followed by hot air for drying.
For example, we get the best price on disposable pipets
ordering by the case.
"Air displacement pipets
are susceptible to the environment and user-to-user variations.