[Pollinator] Bees in Hand Sanitzer - The Video
Sam Droege
sdroege at usgs.gov
Sat May 5 04:14:51 PDT 2012
All:
We have continued to develop ways of displaying bee specimens.
Below is a video with our latest technique
http://youtu.be/izqFaia_8bU
All:
Below is our latest video:
http://www.youtube.com/watch?list=UUhOIN76lBgxZ-BIIo8MvzHA&v=izqFaia_8bU&feature=player_detailpage
This is a distillation of our work this past year on working with insect
and invertebrate specimens in hand sanitizer, this technique is based on
this slide share
http://www.slideshare.net/sdroege/how-preserve-insect-specimens-in-hand-sanitizer
In sum:
You can display and look at under the microscope insect specimens by
putting them in a hand sanitizer filled cuvette. Great for showing the
public insect specimens and letting them handle the specimens safely and
also good for certain types of microscopic work.
What is a cuvette?... Here is what Wikipedia says
A cuvette is a small tube of circular or square cross section, sealed at
one end, made of plastic, glass, or fused quartz (for UV light) and
designed to hold samples for spectroscopic experiments. The best cuvettes
are as clear as possible, without impurities that might affect a
spectroscopic reading. Like a test tube, a cuvette may be open to the
atmosphere on top or have a cap to seal it shut. Parafilm can also be used
to seal it.
Inexpensive cuvettes are round and look similar to test tubes. Disposable
plastic cuvettes are often used in fast spectroscopic assays, where speed
is more important than high accuracy.
Some cuvettes will be clear only on opposite sides, so that they pass a
single beam of light through that pair of sides; often the unclear sides
have ridges or are rough to allow easy handling. Cuvettes to be used in
fluorescence spectroscopy[1] must be clear on all four sides because
fluorescence is measured at a right-angle to the beam path to limit
contributions from beam itself. Some cuvettes, known as tandem cuvettes,
have a glass barrier that extends 2/3 up inside, so that measurements can
be taken with two solutions separated, and again when they are mixed.
Typically, cuvettes are 1 cm (0.39 in) across, to allow for easy
calculations of coefficients of absorption.
The technique is useful for very small specimen inspections under the
scope and for displaying larger specimens.
sam
Sam Droege sdroege at usgs.gov
w 301-497-5840 h 301-390-7759 fax 301-497-5624
USGS Patuxent Wildlife Research Center
BARC-EAST, BLDG 308, RM 124 10300 Balt. Ave., Beltsville, MD 20705
Http://www.pwrc.usgs.gov
I taste a liquor never brewed,
>From tankards scooped in pearl;
Not all the vats upon the Rhine
Yield such an alcohol!
Inebriate of air am I,
And debauchee of dew,
Reeling, through endless summer days,
>From inns of molten blue.
When landlords turn the drunken bee
Out of the foxglove's door,
When butterflies renounce their drams,
I shall but drink the more!
Till seraphs swing their snowy hats,
And saints to windows run,
To see the little tippler
Leaning against the sun!
- Emily Dickinson
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