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Agilent 1200 Series Autosampler Reference Manual
2
Optimizing Performance
Optimization for Lowest Carry-over
Several parts of an injection system can contribute to carry-over:
•
needle outside
•
needle inside
•
needle seat
•
sample loop
•
seat capillary
•
injection valve
The autosampler continuous flow-through design ensures that sample loop,
needle inside, seat capillary, and the mainpass of the injection valve is always
in the flow line. These parts are continuously flushed during an isocratic and
also during a gradient analysis. The residual amount of sample remaining on
the outside of the needle after injection may contribute to carry-over in some
instances. When using small injection volumes or when injecting samples of
low concentration immediately after samples of high concentration, carry-over
may become noticeable. Using the automated needle wash enables the
carry-over to be minimized and prevents also contamination of the needle
seat.
Содержание 1200 series
Страница 1: ...A Agilent 1200 Series Standard and Preparative Autosamplers Reference Manual ...
Страница 12: ...12 Agilent 1200 Series Autosampler Reference Manual Contents ...
Страница 42: ...42 Agilent 1200 Series Autosampler Reference Manual 1 Installing the Autosampler ...
Страница 104: ...104 Agilent 1200 Series Autosampler Reference Manual 3 Troubleshooting and Test Functions ...
Страница 108: ...108 Agilent 1200 Series Autosampler Reference Manual 4 Repairing the Autosampler Figure 14 Using the ESD Strap ...
Страница 174: ...174 Agilent 1200 Series Autosampler Reference Manual 4 Repairing the Autosampler ...
Страница 198: ...198 Agilent 1200 Series Autosampler Reference Manual 5 Parts and Materials ...
Страница 232: ...232 Agilent 1200 Series Autosampler Reference Manual 7 Introduction to the Autosampler ...
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