6 sample data and sample silo 91, 7 titration and measuring modes 98 – Metrohm 726 Titroprocessor User Manual
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Table of content
Table of content
726 Titroprocessor, Instructions for use
6.1 Sample data entry________________________________ 91
6.1.1 Direct data transfer from balances ............................................ 91
6.1.2 Bar-code reader ........................................................................ 92
6.2 Sample silo ______________________________________ 92
6.2.1 Sample silo configuration.......................................................... 95
6.2.2 Automatic data input and output ............................................... 96
7 Titration and measuring modes
7.1 General __________________________________________ 98
7.2 DET Dynamic equivalence point titration________100
7.2.1 Measuring mode ..................................................................... 100
7.2.2 Reagent addition and measurement acceptance .................. 100
7.2.3 Automatic equivalence point recognition................................ 101
7.2.4 Fixed endpoints....................................................................... 101
7.2.5 Evaluation of pK and HNP values ............................................ 101
7.3 MET Monotonic equivalence point titration______103
7.3.1 Measuring mode ..................................................................... 103
7.3.2 Reagent addition and measurement acceptance .................. 103
7.3.3 Automatic equivalence point recognition................................ 104
7.3.4 Fixed endpoints....................................................................... 104
7.3.5 Evaluation of pK and HNP values ............................................ 105
7.4 SET Titration to a preset endpoint______________106
7.4.1 Measuring mode ..................................................................... 106
7.4.2 Reagent addition..................................................................... 106
7.4.3 Measuring point list ................................................................. 107
7.4.4 Switch-off criteria at the endpoint............................................ 107
7.5 SEC Endpoint conditioning_____________________108
7.5.1 Control of the conditioning mode ........................................... 108
7.6 KFT Karl Fischer titrations ____________________110
7.6.1 Measuring mode ..................................................................... 110
7.6.2 Reagent addition..................................................................... 111
7.6.3 Measuring point list ................................................................. 111
7.6.4 Switch-off criteria at the endpoint............................................ 111
7.7 KFC Karl Fischer conditioning _________________113
7.7.1 Control of the conditioning mode ........................................... 113
7.8 MEAS Extended measuring functions ____________114
7.8.1 Measuring modes ................................................................... 114
7.8.2 Standard measurement........................................................... 114
7.8.3 Multiple measurement............................................................. 115
7.9 CAL Calibration of pH sensors _________________116
7.10
7.10 Calculations / Formulas ________________________118
7.10.1 System variables ................................................................... 120
7.10.2 Mathematical functions ......................................................... 121