Metrohm IC Amperometric Detector Manuel utilisateur
IC Professional Detector
IC Amperometric Detector
Manual
8.850.8062EN / 2020-09-25
Metrohm AG
CH-9100 Herisau
Switzerland
Phone +41 71 353 85 85
Fax +41 71 353 89 01
www.metrohm.com
IC Professional Detector
IC Amperometric Detector
2.850.9110
Manual
8.850.8062EN / 2020-09-25
Technical Communication
Metrohm AG
CH-9100 Herisau
This documentation is protected by copyright. All rights reserved.
This documentation has been prepared with great care. However, errors
can never be entirely ruled out. Please send comments regarding possible
errors to the address above.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents
2.850.9110 IC Amperometric Detector ￭￭￭￭￭￭￭￭ III
Table of contents
1 Introduction 1
1.1 Instrument description ......................................................... 1
1.2 Intended use ......................................................................... 2
1.3 Safety instructions ................................................................ 2
1.3.1 General notes on safety ........................................................... 2
1.3.2 Electrical safety ........................................................................ 2
1.3.3 Working with liquids ................................................................ 3
1.3.4 Flammable solvents and chemicals ........................................... 3
1.3.5 Recycling and disposal ............................................................. 3
1.4 About the documentation ................................................... 4
1.4.1 Content and scope .................................................................. 4
1.4.2 Symbols and conventions ........................................................ 4
2 Overview of the instrument 6
2.1 Front ...................................................................................... 6
2.2 Rear ........................................................................................ 7
3 Installation 8
3.1 Setting up the instrument .................................................... 8
3.1.1 Packaging ................................................................................ 8
3.1.2 Check ...................................................................................... 8
3.1.3 Location .................................................................................. 8
3.2 Inserting the amperometric detector .................................. 8
3.3 Putting the amperometric detector into operation ......... 11
3.3.1 Instrument test with dummy cell ............................................ 11
3.3.2 Testing the leak sensor ........................................................... 13
3.3.3 Testing the preheating capillary .............................................. 14
3.3.4 Testing the detector outlet capillary ....................................... 15
3.3.5 Testing the measuring cell ...................................................... 16
3.3.6 Deaerating the measuring cell ................................................ 18
3.4 Connecting the electrode cables ....................................... 19
3.5 Attaching the front cover .................................................. 20
4 Operation and maintenance 21
4.1 Operation ............................................................................ 21
4.2 Care ...................................................................................... 21
4.3 Maintenance by Metrohm Service .................................... 22
4.4 Maintenance ....................................................................... 22
4.4.1 Maintenance ......................................................................... 22
Table of contents ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
IV ￭￭￭￭￭￭￭￭ 2.850.9110 IC Amperometric Detector
4.4.2 Preheating capillary maintenance ........................................... 22
4.5 Shutting down .................................................................... 23
5 Troubleshooting 24
5.1 Problems with the hardware ............................................. 24
5.2 Problems with the baseline ............................................... 24
5.3 General remarks regarding sensitivity fluctuations ......... 27
5.4 Problems with sensitivity ................................................... 27
5.5 Problems with the pressure ............................................... 28
5.6 Problems with the measuring signal ................................ 28
5.7 Problems with the chromatogram .................................... 29
5.8 Other problems ................................................................... 30
5.9 Systematic error diagnostics ............................................. 31
6 Technical specifications 33
6.1 Amperometric detector ...................................................... 33
7 Accessories 35
Index 36
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of figures
2.850.9110 IC Amperometric Detector ￭￭￭￭￭￭￭￭ V
Table of figures
Figure 1 Front ................................................................................................. 6
Figure 2 Rear .................................................................................................. 7
Figure 3 Inserting the detector ........................................................................ 9
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction
2.850.9110 IC Amperometric Detector ￭￭￭￭￭￭￭￭ 1
1 Introduction
1.1 Instrument description
The IC Amperometric Detector is an intelligent amperometric detector
that is used in the detector chamber of the instruments of the 850 Profes-
sional IC, the 881 Compact IC pro and the 882 Compact IC plus line of
instruments.
With the IC Amperometric Detector, electroactive substances can be
determined in the mobile phase of an IC system. Amperometric methods
are used for the determination which combine an outstanding sensitivity
with a high degree of selectivity.
The installed potentiostat generates the voltages for the direct current
amperometry (DC), for the pulse amperometry (PAD) and the flexible inte-
grated pulse amperometry (flexIPAD) as well as for the recording of cyclo-
voltammograms.
The installed preheating capillary ensures a constant eluent temperature
on the cell.
On the one hand, the built-in leak sensor detects fluid that has escaped in
the interior of the detector, while on the other it also responds when too
much fluid has backed up in the tray on the front side of the detector. As
a result of this, the leaking instrument is shut down and the ongoing
determinations are canceled.
The IC Amperometric Detector can only be used together with the IC
instrument. It is utilized in the detector chamber of the IC instrument.
The IC system is operated with MagIC Net™ software. When the IC
instrument is switched on, MagIC Net™ recognizes the IC Amperometric
Detector automatically and checks its functional readiness. MagIC Net™
controls and monitors all of the instruments combined to form an IC sys-
tem, evaluates the measured data and manages it in a database.
Additional information for the operation of MagIC Net™ can be found in
the online help and in the tutorial for MagIC Net™.
1.2 Intended use ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
2￭￭￭￭￭￭￭￭ 2.850.9110 IC Amperometric Detector
1.2 Intended use
The IC Amperometric Detector is used for the amperometric detection in
an IC instrument. Its function is to make precise determinations of electro-
active substances in the mobile phase of an IC system or of a general liq-
uid chromatography system.
As is the case with the associated IC instrument, the IC Amperometric
Detector is also used for working with chemicals and flammable samples.
The usage of the IC Amperometric Detector requires that the user have
basic knowledge and experience in the handling of toxic and caustic sub-
stances for this purpose. Knowledge with respect to the application of the
fire prevention measures prescribed for laboratories is also mandatory.
1.3 Safety instructions
1.3.1 General notes on safety
WARNING
Operate this instrument only according to the information contained in
this documentation.
This instrument left the factory in a flawless state in terms of technical
safety. To maintain this state and ensure non-hazardous operation of the
instrument, the following instructions must be observed carefully.
1.3.2 Electrical safety
WARNING
Only personnel qualified by Metrohm are authorized to carry out service
work on electronic components.
WARNING
Never open the housing of the instrument. The instrument could be
damaged by this. There is also a risk of serious injury if live components
are touched.
There are no parts inside the housing which can be serviced or replaced
by the user.
Ce manuel convient aux modèles suivants
1
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