HTEC-500/510

What is the particle size for PP-ODS II or PP-ODSIII Columns?
The particle size of PP-ODSII  and PP-ODSIII is 2μm.
Tue, 19 Nov, 2019 at 8:09 AM
Salt build up around the electrochemical detector cell
 Salt buildup around the electrochemical detector cell (the chamber that holds the working electrode) is most likely caused by a leak while running mobile p...
Thu, 19 Dec, 2019 at 9:50 AM
What's the difference between a Catecholamine Trap Column and a Precolumn?
The catecholamine trap column (product code 681.200.00) is used to remove dopamine for detection of acetylcholine, whereas the precolumn (product code 68...
Thu, 19 Dec, 2019 at 10:06 AM
Salt Precipitates around one of the connection fittings
Salt precipitates form around connection fittings when there is a leak due to a loose connection when running mobile phase.  Slow leaks can be difficult to ...
Thu, 19 Dec, 2019 at 10:21 AM
Is it possible to detect acetylcholine in brain tissue homogenate using HPLC-ECD?
Acetylcholine is  difficult to detect in brain tissue sample because of enzymes present, which quickly degrade acetylcholine even after sacrifice. While tec...
Tue, 14 Jan, 2020 at 9:30 AM
HTEC Shut-Down Procedures (unused over 2 weeks)
Properly shutting down the HTEC will ensure preservation of functionality after a long hiatus (weeks to months).  Most issues dealing with improper storage ...
Tue, 31 Aug, 2021 at 9:32 AM
HTEC Restart Procedures after a long-term shutdown
HTEC Restart Procedures after a long-term shutdown (over several weeks) Before restarting an HTEC, please inspect to ensure proper shut down procedures we...
Wed, 1 Jul, 2020 at 11:19 AM
Drop in Peak Height
A sudden drop in peak height could be caused by a few things.    If  all peaks lower than usual (including the solvent front peak), this could either indi...
Thu, 23 Jul, 2020 at 8:59 AM
How often should I replace the reference electrode on the HTEC?
We recommend replacing the reference electrode about once a year or if you experience an unusually high background current.    A new reference electrode RE-...
Mon, 16 Nov, 2020 at 1:42 PM
SC-5ODS Monoamine Analysis in Tissue Samples
Mobile Phase (flow rate 0.5 ml/min) pH3.5 of 0.1M Citrate-Acetate Buffer* 83% Methanol 17% Sodium Octansulfonate (SOS) 190 mg/L EDTA-2Na 5 mg/L *0.1...
Thu, 28 Jan, 2021 at 3:05 PM