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Section B – CD AutoPlus Introduction
CD14 Tester & CD AutoPlus Autosampler User Guide—75-108-800 Rev. B—31 May 2021
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EAR99 technology subject to restrictions on cover page.
Section B – CD AutoPlus Sampler
Introduction
The CD AutoPlus™ is a programmable precision syringe-
pump sampling instrument that handles a wide variety of
dissolution applications and requirements. The basic
instrument consists of 6 precision glass sampling syringes
driven by a stepper motor, with internal valve interfacing, in
one compact ergonomic instrument package. PTFE tubing
harnesses connect to a CD14 Tester, multi-cell changers for
on-line UV/VIS sample analysis, as well as collection trays for
sample archive.
The CD AutoPlus can be directed to withdraw an aliquot from
a dissolution tester at a pre-programmed time. The sample is
measured and dispensed through a UV flow cell and/or further
into a collection rack that contains vials or test tubes. The CD
AutoPlus can be programmed to repeat this process multiple
times.
Most other commercial dissolution sampling systems use
peristaltic pump movement of samples into a collector or
through a UV flow cell. The CD AutoPlus avoids the volumetric
inconsistency and high maintenance of the peristaltic pump
and provides an inert environment to minimize drug
absorption.
The AutoFill™ is an automated sample collector designed for
seamless integration with the CD AutoPlus. The AutoFill
includes sample collection capability from eight sources, home
port arrays for wash and waste, all-inert tubing and dispense
probes, and reduced tubing lengths to minimize rinse volume
and save time. Collection racks include 16 x 100 mm test
tubes for UV, 13 x 100 test tubes for UV, 12 x 32 vials for
HPLC.