pH measurements of small biological samples
danmor at netmedia.net.il
Wed Nov 6 13:26:23 EST 1996
The need frequently arrises in biological laboratories to measure pH in
small sample vessels such as 96 well plates, microcentrifuge tubes, or NMR
tubes. Standard pH electrodes are too large to fit into these small
containers. Miniature glass electrodes are both breakable and have a high
electrical resistance which makes the pH measurements unstable. A micro
combination pH electrode has been developed which has a 1 mm tip and a 2 mm
diameter flexible Teflon body which can measure pH in less less than 20
microliters of sample. This probe has a solid state sensor which gives
drift free pH measurements. The probe can be used with a standard pH meter.
Further information can be obtained via email at service at lazarlab.com.
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