UltiMate 3000 Series:
ECD-3000RS Electrochemical Detector
Page ii Operating Instructions
3.4.2 Installing the Detector ..................................................................................... 36
3.4.3 Configuring the Detector ................................................................................ 37
3.5 Setting Up the Detector in DCMSLink .................................................................... 44
4 Preparation for Operation (Startup) ........................................................................ 45
4.1 Overview .................................................................................................................. 45
4.2 Connecting the Drain System .................................................................................. 46
4.3 Potentiostat Modules and Electrochemical Cells ..................................................... 47
4.3.1 Configurations of Electrochemical Cell and Potentiostat Module ................. 47
4.3.2 Potentiostat Module Guidelines ...................................................................... 48
4.3.3 Performing a Relay Test for a Potentiostat Module ....................................... 48
4.3.4 Electrochemical Cell General Guidelines ....................................................... 50
4.4 Flow Connections .................................................................................................... 52
4.4.1 Tips and Precautions for Connecting Capillaries ........................................... 52
4.4.2 Setting Up Flow Connections ......................................................................... 54
4.4.3 Installing In-Line Filters ................................................................................. 59
4.4.4 Connecting a Column to the Column Compartment ...................................... 62
4.5 Equilibration............................................................................................................. 63
4.6 General Guidelines for Detector Operation ............................................................. 64
4.6.1 Mobile Phases ................................................................................................. 64
4.6.2 Solvent Delivery System ................................................................................ 66
5 Operation and Maintenance ...................................................................................... 67
5.1 Power-Up ................................................................................................................. 67
5.2 Status Screen ............................................................................................................ 68
5.3 Chromeleon Software .............................................................................................. 69
5.3.1 Connecting to Chromeleon ............................................................................. 69
5.3.2 Direct Control ................................................................................................. 70
5.3.3 Automated Control ......................................................................................... 72
5.4 Important Operating Settings ................................................................................... 74
5.5 Direct Current (DC) Mode ....................................................................................... 76
5.5.1 Operating Principle of the DC Mode .............................................................. 76
5.5.2 Setting the Potential in DC Mode ................................................................... 76
5.5.3 Allow Research Potentials .............................................................................. 78
5.6 Pulse Mode ............................................................................................................... 79
5.6.1 Operating Principle of the Pulsed Amperometric Detection (PAD)............... 79
5.6.2 Selecting Parameters in the Pulse Mode ......................................................... 81
5.7 Starting and Stopping Data Acquisition................................................................... 82
5.8 Optimizing the Detector Performance ..................................................................... 83
5.8.1 Analytical Potential ........................................................................................ 84
5.8.2 Filter Constant ................................................................................................ 85
5.8.3 Baseline Optimization .................................................................................... 85
5.8.4 Background Current and Baseline Noise ........................................................ 85
5.8.5 Data Collection Rate ....................................................................................... 87
5.8.6 Selectivity ....................................................................................................... 88
5.9 Screening Operation ................................................................................................. 88