19
R-Biopharm Rhone Ltd
7.2
Reduced / No Aflatoxin B1
and G1 Peaks Observed
•
Check the KOBRA® CELL is connected correctly to
the HPLC
(Fig 6).
•
Check the connections to the KOBRA® CELL from
the power pack.
•
Check the KOBRA
® CELL membrane. The
membrane is the site of the actual derivatisation
reaction (ion-exchange occurs on the membrane).
The membrane starts a deep amber colour and,
through time and use, the centre of the membrane
becomes discoloured, eventually turning a pale
colour. The pale colour indicates that the
membrane will need replaced.
•
Check there is power in the power pack. Check
th
at the power pack has been turned on.
•
Check the internal components of the
KOBRA® CELL are in the correct order
(Fig. 1), o
r
that there is not a blockage in the system.
•
No potassium bromide (or not enough potassium
bromide) was added to the mobile phase. Prepare
again.
•
No nitric acid was added to the mobile phase.
Prepare again.
Fig 9. Reduced / No Aflatoxin B1 and G1 Peaks Observed
Summary of Contents for KOBRA CELL
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