Autosamplers are essential for laboratories that process a high volume of samples using a gas and/or liquid chromatograph. Allowing an autosampler to inject samples into a chromatograph results in greater sample reliability and a more efficient chromatography process compared to injecting the samples by hand. Therefore, most laboratories select for autosamplers instead of stand-alone concentrators that require manual assistance.
Due to its refined technology, an autosampler can be a significant investment. As a result, many laboratories, especially those starting or expanding on a limited gear budget, opt to purchase them utilized. If you are considering buying a pre-owned free and trap autosampler, the tips below will help you find one that offers high quality performance for a reasonable price:
Determine a Model that Offers Quality
Two items determine the longevity of an used machine: how well it has been preserved, and how well it is designed. Concerning the latter, make sure you select a model that gets solid reviews. Performance areas to be aware of as you investigate reviews are: analytical ability, mechanical reliability, efficiency, ease of maintenance, and ease of use.
Examine the Maintenance Record
A badly maintained autosampler can break down too early and fail to provide accurate readings. The best way to avoid buying laxly taken care of purge and trap equipment is to request a maintenance record for every autosampler you consider buying, even types that have received minor use. When the record shows gaps in maintenance, the safest choice is to look for an alternative autosampler.
Buy from a Professional Seller
Used autosamplers are available from various resources, but you should only buy from an expert seller of used laboratory tools. Although amateur sellers may provide attractive prices, buying equipment that may or may not be properly inspected is not worth the price difference. Professional sellers properly assess the condition of utilized autosamplers, and, if necessary, refurbish all of them before reselling them.
Evaluate the trustworthiness of the Seller
Some sellers do not thoughts selling bad equipment, and their particular business history usually shows it. If you find that the references of a vendor seem dissatisfied with its products, or its record at the Better Business Bureau (BBB) reveals a history of unresolved consumer complaints, find a different seller who demonstrates a dedication to customer care.
Inspect the Equipment Firsthand
The best way to assess an autosampler’s state of put on is to inspect it firsthand. Since clear as digital photos can be, they seldom reveal as much as the particular naked eye can see, and they seldom expose the equipment from every angle. If you cannot travel to the location of the vendor to inspect the equipment, hire someone to perform the inspection for you.
The purge and trap autosampler is essential for reliable, efficient VOC analysis. If you need to buy purge and capture equipment on a limited equipment spending budget, buying it used may be the smartest choice. Following the tips above can help you purchase quality equipment for a reasonable price. For more information about purchasing used autosamplers, contact a seller of new and use analytical equipment.