Metrohm 788 IC Filtration Sample Processor - Manual (Page 114)

4 Operation
788 IC Filtration Sample Processor
106
4.6.6 Method "Dialysis"
Application
IC determinations with automatic sample dialysis. This method is not
planned for usage together with the ultra-filtration cell, which should be
bridged. The present method contains a simultaneous separation of one
sample and the dialysis of the following sample within the sample se-
quence. The start sequence just starts the dialysis of the first sample
while the final sequence only starts the determination of the final sample.
Interconnection
See section 2.6.5 as well as 754 Instructions for Use
Program of 788 IC Filtration Sample Processor
788 IC Filtr. Proc. 5.788.0010
parameters
method Dialysis
number of sample: rack
>start sequence
1 CTL:Rm: INIT
2 CTL:Rm: PUMP 752 ON
3 MOVE 1 : 1
4 LIFT: 1 : work mm
5 CTL:Rm: PUMP 754 ON
6 WAIT 120 s
7 CTL:Rm: FILL B/STEP 1
8 WAIT 600 s
>sample sequence
1 SCN:Rm : Pump1 ?
2 CTL:Rm: ZERO 1
3 CTL:Rm: STEP MSM 753
4 CTL:Rm: FILL A 1
5 CTL:Rm: INJECT B 1
6 WAIT 30 s
7 CTL:Rm: INJECT A 1
8 CTL:Rm: PUMP 754 OFF
9 SCN:Rm : Wait1
10 SAMPLE: + 1
11 MOVE 1 : sample
12 LIFT: 1 : work mm
13 CTL:Rm: PUMP 754 ON
14 WAIT 120 s
15 CTL:Rm: FILL B/STEP 1
16 WAIT 600 s
>final sequence
1 CTL:Rm: ZERO 1
2 CTL:Rm: STEP MSM 753
3 CTL:Rm: FILL A 1
4 CTL:Rm: INJECT B 1
5 WAIT 30 s
6 CTL:Rm: INJECT A 1
7 CTL:Rm: PUMP 754 OFF
8 WAIT 1200 s
9 CTL:Rm: PUMP 752 OFF
>changer settings
rack number 0
lift rate 1 12 mm/s
shift rate 20
>manual stop
CTL Rmt: **************
CTL RS232:
------------
Report header with serial number and program ver-
sion
Method name
Number of samples to be processed (entire sample
rack)
Initialize remote interface
Switch 752 Pump Unit on
Move needle to sample position
Place lift with needle to working position
Switch 754 Pump Unit on
Rinse dialysis cell
Stop pumping acceptor solution
Dialysis time
Waiting until 709 IC Pump runs
Trigger autozero at 732 IC Detector
Switch 753 suppressor module to next position
Switch injection valve A at 733 to "Fill"
Transfer of acceptor solution to sample loop
Wait 30 s
Switch injection valve A at 733 to "Inject"
Switch 754 Pump Unit off
Waiting until 732 IC Det. sends signal on rem. line 3
Raise sample position by 1
Move needle to sample position
Place lift with needle to working position
Switch 754 Pump Unit on
Rinse dialysis cell
Stop pumping acceptor solution
Dialysis time
Trigger autozero at 732 IC Detector
Switch 753 suppressor module to next position
Switch injection valve A at 733 to "Fill"
Transfer of acceptor solution to sample loop
Wait 30 s
Switch injection valve A at 733 to "Inject"
Switch 754 Pump Unit off
Wait for final suppressor regeneration
Switch 752 Pump Unit off
—— Settings for changer functions ——
—— Reaction to manual stop ———