Method and apparatus for pumping and diluting a sample

Details Method and apparatus for pumping and diluting a sample Method and apparatus for pumping and diluting a sample

G - Physics

01

N

G01N 1/38 (2006.01) G01N 1/00 (2006.01) G01N 35/08 (2006.01)

Patent

CA 2497648

A pumping apparatus (50) which isolates a sample (52) from a pump (72), thereby circumventing the so-called ~memory effect~ problem. The sample is pumped into an intermediary, or buffer region (64) using a first pump (54). The sample is displaced from this buffer region by pumping a second fluid (74) into the buffer region using second pump (72). When the sample is displaced from the buffer region it proceeds to a mixer (78) where it can be diluted before analysis. The second pump is required to operate with a high degree of accuracy so that the sample is diluted by a consistent amount. Preferably, the second pump is a highly accurate piston pump.

L'invention a trait à un appareil de pompage (50) qui isole un échantillon (52) d'une pompe (72), ce qui permet d'éviter le problème que l'on appelle <= effet de mémoire >=. L'échantillon est pompé dans une zone intermédiaire ou tampon (64) au moyen d'une première pompe (54). L'échantillon est déplacé de ladite zone tampon par le pompage d'un second fluide (74) dans la zone tampon au moyen d'une deuxième pompe (72). Lorsque l'échantillon est déplacé de la zone tampon, il est acheminé vers un mélangeur (78), où il peut être dilué avant d'être soumis à analyse. Il est nécessaire que la deuxième pompe fonctionne à un niveau de précision élevé, afin que le degré de dilution de l'échantillon soit constant. De préférence, la deuxième pompe est une pompe à piston haute précision.

Affiliated with

Also associated with

Rating

Method and apparatus for pumping and diluting a sample does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for pumping and diluting a sample, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for pumping and diluting a sample will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2078928