Peter P. wrote:

> I'd say about 0.8*10^-6 ml (0.8 picoliters). 

Just nit-picking... Isn't 

0.8 * 10^-6 ml 
= 0.8 * 10^-9 l 
= 0.8 nl 
= 800 pl ?

> volume is about 0.1mm dia x 25 mm length -> ~160 picoliters (0.00016  ml). 

Here I get

(((0.1/2)^2 * pi) * 25) mm^3
= 0.2 mm^3
= 0.2 * 10^-6 l
= 0.2 * 10^-3 ml = 0.0002 ml
= 0.2 ul
= 200 nl
= 200'000 pl

(Using milli=10^-3; micro=10^-6; nano=10^-9; pico=10^-12.)

Gerhard

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