1.5
ml Microcentrifuge
Flip-Top Tubes
- Every tube MUST
have a unique Sample Number clearly written directly on the tube before it is shipped.
See our instructions on how tubes should be labeled.
See your confirmation email for sample numbers and primer codes.
- Please use a BLACK marker only. Colored
markers can be very difficult to read under lab lighting. That black pen should
be dark and legible, please. Throw away your worn-out pens!
- Do not use stick-on labels
or tape of any kind. They fall off in our
freezers or jam the tubes in the centrifuges.
- Please do not use Parafilm to seal your tubes. It isn't necessary, and in
fact parafilm can actually pull lids open during shipment!
In general, we have found it unnecessary to use any such material at all, as
long as your samples are physically protected against impact (see below).
- Each tube MUST have at least 10 ul in it.
- Multiply that amount by the number of reactions for that sample -
e.g. for 4 primers we need 40 ul sample volume. See your confirmation
e-mail for specific quantities.
- Enclose your microfuge tubes in a rigid enclosure to protect them during
shipment. Padded envelopes are not sufficient. Possible enclosures:
- 50 ml disposable screw-cap tubes (e.g. Falcon or Corning tubes)
- Used pipette boxes (remove the tip-support grid)
- Old 35 mm slide boxes are perfect for 4-6 tubes
A 50-ml tube can safely hold up
to 6 tubes. Please do not overfill it or the tubes inside may still break
during shipping.
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Below are two examples of sample boxes that can be used for shipping:
A used/emptied pipette
tip box is a good example of an ideal container in which to ship your sample
tubes. Please do not overfill the box or the tubes inside may still break
during shipping.
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II. Mailing Instructions:
DNA
Sequencing Core
1150 W. Medical Center Dr.
2560 MSRB II
University of Michigan
Ann Arbor, MI 48109-5674
If you are a non-University client, you
probably will be sending
samples via mail or a package delivery service. It is NOT necessary to
send samples on dry ice or even wet ice, as long as they are not
contaminated with nucleases. Overnight (express) shipping is probably
a good idea, but it is not essential; we receive many samples via standard
(non-express) postal service, and they sequence very well. If you want
to be careful, use an express delivery service.
Caution: If you enter your samples into our computer, but don't send them right away, after 3
business days we will automatically DEMOTE them to a LOWER PRIORITY. This means they will go
to the end of our queue, to be processed only if no other samples are in line. Avoid this by
sending us your samples right away!
Please do not ship samples to arrive on weekends or holidays!
Thank you for your interest in the University of Michigan DNA Sequencing Core.
