Tu renverses ton tube et tu attends patiemment que la goutte glisse vers la surface :)

Just use short lengths of small silanized glass rods. As long as volume accuracy is not important, this should be very inexpensive and simple. *Most types of plastics are hydrophobic and could also be used.

We used multi-well pin tools that transfer approx nano-micro volumes for high-throughput drug discovery screens to transfer ethylacetate extracts resuspended in DMSO into assay plates. The following link has various diameter and shaped pins that can be assembled into multi-well transfer pin tools:  http://www.vp-scientific.com/pin_tools.htm

The tools are pretty expensive but save a lot of time for routine multi-well set ups. Although it is not recommended, the pin tools were soaked in EtOH then flamed for sterilization between assay plates.

You may use microliter syringes such as 10 microliter Hamilton syringes (catalog # 80366). The cost for 6 syringes is $93..61. These are very accurate in volume, if needed and can be cleaned and reused.

Below you will find the web address to order the syringes.

http://www.hamiltoncompany.com/products/syringes-and-needles/general-syringes/microliter-syringes/10-microL-Model-701-N-SYR-6-Pack-Cemented-NDL-26s-ga-2-in-point-style-2

Good luck.

By "no micropipettes", this means you are ruling out the small glass tubes, such as those made by Drummond Scientific?

https://www.drummondsci.com/product.cfm?cat=capillary-micropipets&prod=microcaps

The other thing one can do is use a small syringe:

http://www.coleparmer.com/Product/Hamilton_Gastight_Syringe_with_Cemented_Needle_25_uL_22s_G/UX-07939-01?referred_id=778&gclid=CMWt9pC9kc8CFYcvgQod1fALUA

Dear cplleague,

You can use microcapillary tubes prealably calibrate with a Hamilton syringe (10 µl).As stated by Dr. Sharda, the cost of this syringe is relatively low. Other possibilty you can find it in  laboratories of medical analyzes?

Good luck

Romain, could you provide everyone with more specific details about your request?

Dear Romain,

I wait your feedback..

Thanks !

Best regards N. Soltani

Thanks a lot for all your answers !

Jack's suggestion seems perfect for my application (microcaps from Drummond)   

Best regards,

RC