2 methode "mlat, Methode "mlat – Metrohm 838 Advanced Sample Processor Manual User Manual

Page 91

Advertising
background image

3.8 Standard methods

Metrohm 838 Advanced Sample Processor, Appendix

83

3.8.2 Methode

"MLAT"

MLAT = Modified Linear Approximation Technique
Application
Brightener analysis

System setup
See 8.838.1303 Installation Instructions, Section 3.6 or 8.797.1013

Hardware Manual of the 797 VA Computrace, Section 2.11.4.

Run sequences for the 838 Advanced Sample Processor

838 Advanced S.Proc. 00030 5.838.0010

parameters

method MLAT

number of samples: rack

>start sequence

1 CTL:Rm: INIT

2 MOVE 1 : sample

3 CTL:Rm: *************1

4 CTL:Rm: *************0

>sample sequence

1 SCN:Rm : *****1**

2 DOS: 1.* : 30 mL

3 DOS: 2.* : 1 mL

4 CTL:Rm: *************1

5 CTL:Rm: *************0

6 DOS: *.* : fill mL

7 SCN:Rm : *****1**

8 MOVE 1 : sample

9 LIFT: 1 : work mm

10 PERISTALT: 300 s 10

11 CTL:Rm: *************1

12 CTL:Rm: *************0

13 MOVE 1 : +28

14 LIFT: 1 : work mm

15 PERISTALT: 5 s 10

16 SCN:Rm : *****1**

17 PERISTALT: 300 s 10

18 CTL:Rm: *************1

19 CTL:Rm: *************0

>final sequence

>changer settings

>dosing unit def.

>timeout settings

>manual stop

- report header with instrument ID and program version

- method name

- number of samples (e. g. entire rack)

- initialize all Remote lines

- approach first sample

- remote start of the 797 VA Computrace

- wait for advance signal of the 797 VA Computrace

- add VMS

- add suppressor solution

- set Remote line: Intercept solution ready

- fill dosing units

- wait for advance signal of the 797 VA Computrace

- approach sample

- run lift and needle to work position

- transfer sample with peristaltic pump

- set Remote line: sample transfer ready

- approach rinsing vessel

- run needle to work position

- aspirate rinsing solution

- wait for advance signal of the 797 VA Computrace

- rinse needle and transfer tubing

- set Remote line: needle cleaning ready


----- miscellaneous settings -----

Note: The command lines 1 to 6 are only necessary, if dosing drives

are connected to the Sample Processor for adding auxiliary solutions.

In the 797 VA Computrace software the parameter "Dose auxiliary so-

lution via sample processor" in the configuration dialog "Settings /

General settings / Automation" must be activated.

If adding of auxiliary solutions is operated by the 797 VA Com-

putrace, line 1 to 6 have to be deleted.

Advertising