Hello,
Is there any default programs avalaible for infinity II 1260 Autosampler?
It would be nice for example, having some downloadable programs as tutorials (making calibration with dilutions)
For OpenLab Chemstation (version LTS 01.11)
Hello,
Is there any default programs avalaible for infinity II 1260 Autosampler?
It would be nice for example, having some downloadable programs as tutorials (making calibration with dilutions)
For OpenLab Chemstation (version LTS 01.11)
Hi,
there is no a downloadable program at the moment. But you could take a look at the Application Note Let Your Autosampler Do Your Pipetting (agilent.com). It describes the sampler programming approach to create the dilution series for calibration purposes.
Hi thanks for your response, but there s no sequence example in this application note and description of the different functions in autosampler manual are very simple.
Is there any other manual?
regards.
L Stephan
Injector program (sample prep method in OpenLab) is a part of the analytical method in ChemStation. You would need to create a second method, "biased" to the sample preparation. This method would need to include the first injection at the end of the repeated blocks (from my previous post). To add the injector program, you need to go to "Edit Entire Method" select "Instrument/Acquisition" and on the Multisampler Injector Program tick the "Use Injector Program" and configure the repeated blocks for dilution prep and the first injection (specify the vial). In the sequence, you have to use 2 methods. They have to use the same analytical part (injection volume, flow rate, gradient, temperature, wavelength, etc.), but the very first has to Use Injector Program activated and configured, in the second one injector program has to be deactivated. Also to have the injector program working, you have to specify an injection vial in the Injection Table for the first method. But this vial will be ignored, the sample won't be drawn from there. It is only needed to make the line considered as a real sample and not a blank.
Good luck! :)
Thanks for all those explications, it seems to be complex but i will try to succeed
Many thanks for all that :-)
In fact we re limited by the volume of the loop 100µ so we need to add glass inserts into vials.
But is there another way, like draw x µL of stock standard solution in loop eject it in a vial and add mobile phase volume based on default methode mobile phase flow (depend on time) in order to dilute it as necessary in vial?
Or we must using glass inserts?
Regards
L Stephan
If I understood correctly, you would like to use the mobile phase coming from the pump to perform the dilution. Unfortunately, it is not possible. The system is designed to protect the column from sudden pressure changes. Therefore, it cannot be in the main pass and be connected to the atmosphere (pre-column). All programmed valve switches (in injector program) are done with the needle in the needle seat.
So, glass inserts are the way to go in this case.
It depends on your workflow and how much you need to repeat these dilutions. There are automation solution like an Automated Liquid Handling from Agilent, Automated liquid handling, compact and flexible liquid handler | Agilent.
Cheers!
Thanks a lot forr all that.
I will test this :-)
Regards
I Nadjan,
I m trying my firt dilution program but i ve got an error relative to the line "Draw maximum volume from air whith default speed".
I ve got this error
Do you have any idea about this error?
Thanks a lot.
L Stephan
I Nadjan,
I m trying my firt dilution program but i ve got an error relative to the line "Draw maximum volume from air whith default speed".
I ve got this error
Do you have any idea about this error?
Thanks a lot.
L Stephan
Hi Lstephan, could you please copy here the numbers of the errors? Unfortunately, I could not recognize the error description on the screenshot.
Hi Nadjan, thanks for your response
A copy of the error :
Otherwise i m very suprised id received this response from Agilent
But the application note about dilution ( Let Your Autosampler Do Your Pipetting) is done with the same ALS than me ( loop 100µl and pump head 100µL) !
Thanks a lot
Hi Lstephan,
I am sorry to say, but the answer about the air bubble "sandwich" is incorrect. The air plug exists, but it does not affect the aspirated or injected volumes.
You mentioned earlier that you have a 100 µL loop. Could you please check if it is correctly configured? Right-click on the Sampler tile to get the menu and select Modify -> Flow Path
Are the sizes of the head and the loop configured as 100?
At the moment, this is the only thing that comes to my mind that could cause an error when you are trying to operate with 100 µL on the vialsampler.
And the injector program is correct, you checked, right? You are not trying to take/eject more than 100 µL?
Hi Nadjan
Many thanks for your responses.
Yes i verified that analytical head and sample loop are 100µ volumes.
I send you a copy of different screen captures perharps will you see an error on my program?
erreurs.rtf
Thanks again
Hi,
did you try to set line number 5 in the injector program to the "Eject maximum volume"? On the screenshots, it was "Eject default volume". Does this help?
The last option would be to configure draw volumes 79 and 19 µL, as a trial. This would be something very new to me
Hi,
Thanks i m not at the lab this week but i will try to change line 5.
I tried to modify both volumes in order to have a maximum added volumes less than 100µL ( like 10 from stock solution and 60 diluent volvent) but i had the same error.
I will tell you as soon as i ll test that.
Have a nice day.