Agilent 1100 HPLC System



We offer HPLC systems and components originally made by Waters, Agilent and TSP(now Thermo Fisher). We primarily deal in Waters HPLC. This is not due to it's superiority but to market forces, there is an abundance of used Waters equipment in circulation. In contrast there is less from Agilent on the used market and demand is too strong. 1100 series HPLC systems fetch high prices even when they are being liquidated in an unknown condition. If you work for an organization that receives large discounts, you may be able to purchase a new system from Agilent for perhaps only 20-25% above the price of used. Having said this, we compete very favourably in terms of warranty and price with other used dealers if your organization does not receive such large discounts.

Waters HPLC systems still compete well with Agilent and on the used market an equivalent system is often much cheaper.

TSP systems have a niche market and are/were low priced even when sold new. Adding a TSP module to an existing system might be a cheap way to add functionality but generally speaking TSP has lost out in this software driven market.

Most of our HPLC systems and components are offered with either a one or two year warranty. We have successfully supported many systems through two year warranties, including ones shipped to overseas customers. To our knowledge we are the only used HPLC vendor that is willing to offer a two year warranty. However our prices are comparable to vendors offering 90 day warranties.

Although we prefer not to operate in this manner, we can also sell HPLC equipment with 90 day warranties and at very low prices. However these initial savings will likely be lost over the first two to three years of the life of the instrument. A 90 day warrantied instrument is simply not rebuilt in the same manner. If an instrument is not working, a quick repair can bring it back to life and it might stay this way for 90 days, this is why it is so common to see warranties of 90 days or less. This is however not refurbished instrumentation, it is repaired instrumentation. True refurbishment should involve the replacement of parts that are functioning but likely to break in the near future.

When the vulnerable parts that should be replaced are, the instrument has a new lease on life. Our goal is to offer instruments that will give five more years of service and we typically offer these with a 2 year warranty. These expectations are in fact quite similar to those selling new instruments.

Advances made by computer manufacturers are mind boggling. New computers make old ones almost worthless. A 10 year old computer has little value and in fact you might even have to pay someone to get rid of it for you. Hard drive capacity in particular has increased at an exponential rate. A terabyte drive(1000 gigabytes) can now be purchased for under $100, unthinkable only a few years ago.

Progress with analytical instrumentation could not be more different. Aside from easier to use software much of the progress has been cosmetic. By actual specification, Gas Chromatographs, HPLC systems, Spectrophotometers, etc have improved very little over the past 15 to 20 years. In fact, although we resist the temptation, there are parts from 40 year old HPLC pumps that can be used in today's descendant models.

Here are some examples of vulnerable parts that are replaced whether they are still working or not.

717 HPLC Autosampler
-The seal pack is rebuilt
-Both high pressure injector valves are rebuilt
-The syringe seal is replaced
-The syringe plunger seal is replaced
-Fan Filter media is replaced
-Missing terminal blocks are replaced
-Rubber feet are replaced


2487 UV Detector
-The deuterium lamp is replaced
-Fan Filter media is replaced
-Rubber feet are replaced


600 HPLC Pump
-The Sapphire plungers are replaced
-Plunder seals are replaced
-The check valves are rebuilt
-The reference valve is rebuilt
-The intake valve is rebuilt
-Sparge diffusers are replaced
-Teflon sparge tubing is replaced
-Solvent intake filters are replaced
-Teflon solvent tubing is replaced
-New sparge supply line is installed
-Sparge fitting for gas regulator is supplied to customer
-Pump cable is replaced
-Fan filter media is replaced
-Rubber feet are replaced


System In General
-The GPIB cables are replaced
-Low pressure tubing is replaced
-High pressure tubing is replaced(module to module)


There are also various procedures carried out to maximize the HPLC system's performance, examples are:

-Wavelength accuracy is calibrated
-Baseline stability is checked
-Retention time is checked with standards
-Pressure decay test is run on the pump
-Seal pack is calibrated


For details on the specific models we offer please visit our products page.

At one point all of our prices were posted online. Since the subprime fiasco of 2007 we have had an increasingly difficult time keeping our online prices up to date with the number of currencies that we normally quote in. Worse yet (for us) the prices of many instruments are in a state of flux. At this time(June 2010) we are in a buyer's market, this is an excellent time to buy used instrumentation, with prices approximately 10-15% lower then in 2007. Unfortunately we have had to switch from an online pricing setup to a quote-on-request one.

If you would like a quote on one of our HPLC systems please let us know if you would like our standard two year warranty or our optional 90 day warranty. Please note that only the parts needed to return functionality to the system are replaced with the 90 day warranty, while parts are proactively replaced with are standard two year warranty.

If you have any questions at all please don't hesitate to contact us. Our sales people will never "follow up" with you afterwards and if you contact us by email we will never add you to our spam list. We do not and will not, ever have one.

If you could please send an email to info@2h2inc.com we should be able to provide a quote to you within a few hours or please visit our contact page for our telephone number and mailing address



Please note that we are not affiliated with Waters, Agilent or Thermo Fisher