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				Varian
				Posted: Fri Sep 05, 2008 4:55 pm
				by paulolab
				Who knows?
It is possible to work in a GC-varian, using two autosamplers and two injectors at same time, each one for each column?
Thank you for your  atention.
			 
			
					
				
				Posted: Sat Sep 06, 2008 1:54 pm
				by HbJ
				I know that the Varian 3600 (over 15 years old now) did indeed have that capability with two 8100/8200 autosamplers.
Regarding their current GCs I'd just contact your local Varian representative 

 
			 
			
					
				
				Posted: Sun Sep 07, 2008 9:41 pm
				by paulolab
				Thank you. The GC is 450.  I would prefer, for the time being,  to have the feed-back from other users.
			 
			
					
				
				Posted: Thu Nov 13, 2008 11:47 am
				by mcbart
				have you tried to contact this autosampler manufacture?
www.hta-it.com
they can help
 
			 
			
					
				
				Posted: Sat Nov 15, 2008 9:09 pm
				by AICMM
				Can you use an inlet splitter and do the same thing?  Much easier and cheaper if you can get away with it.  
Best regards.
			 
			
					
				
				Posted: Mon Nov 17, 2008 1:43 pm
				by danicrd
				maybe you can use a 8400 sampler feature of "double injection": using same sampler and same syringe you can inject from two different location in two different injection port. You can set initial isothermal long enough to allow two injection to finish, then you can ramp up gc oven.
Good luck
			 
			
					
				Varian double injections
				Posted: Wed Nov 19, 2008 11:52 pm
				by oncoming storm
				Our Varian 3800 with a 8400 autosampler is supposed to be able to do this. The instruction manual shows us how to set it up to do so but I've never tried it. Maybe I should.
			 
			
					
				
				Posted: Mon Nov 24, 2008 2:12 pm
				by Spuzzin
				The 450 GC system with 8400 autosampler can do the double injection as described by danicrd but not the type of "dual channel" injection that paulolab was after.  As far as I'm aware this type of dual channel system is under patent/license to Agilent.
Rich