Under what conditions should I store my HPLC column?
Store the column in the solvent it was packed in. Ensure that the column end fittings are tight and that the column is stored in near isothermal conditions. alternate suggestions can be found in the operator's manual. Call us for a copy if you have misplaced your manual. Top
I have a Shodex GPC column and I want to know the pore size and particle size of the packing material. Where can I obtain this information?
Pore sizes for all Shodex gels are published in the Shodex Pak brochure. Particle sizes are not published however they are available. Please contact us for particle size information or for the latest Shodex Catalogue. Top
My refractive index detector has become quite noisy. How can I determine whether the problem lies with the detector or some other component of my HPLC system?
Leave the detector and data system on while turning off all other components up stream of the detector. Monitor the baseline of the detector. If the noise and the drift continue then the detector may have a problem and it should be shipped to us for service. If noise and/or drift stop then the problem may be with another component of the system upstream. In any event, contact us for assistance. We stock a full complement of parts for all Shodex and ERC detectors. Top
I would like to have more HPLC applications data for the column that I purchased from JM Science. Is this data available and in what format?
A complete Shodex applications library is available on CD-ROM. Specific applications regarding one of the many types of detectors that we sell or a Cosmosil reversed phase column application are available by fax, e-mail, or regular mail. Please advise us of your needs. Top
We have an ERC (formerly ERMa) instrument that requires service. Can you help?
JM Science now sells and services all ERMa and ERC detectors and degassers. Some parts are still available for even very old instruments. Contact us with the instrument serial number and model number and a description of the problem. Top
We need a Shodex column quickly. Can you help?
Shodex manufactures more than 300 different HPLC columns. We stock the most common columns but we can get most Shodex columns within 3 business days providing this column is in the manufacturer's inventory. Call us with your RUSH orders! Top
I have a Shodex GPC column and I want to use a different solvent than the column was packed in. Is there a list of solvents that can and cannot be used with my particular GPC column?
A complete list of exchangeable solvents is available for most Shodex GPC columns. Please contact us for recommendations. Top
