Discovery® Ag-Ion SPE Tube

bed wt. 750 mg, volume 6 mL, pk of 30

Pricing and availability is not currently available.


polypropylene tube

Quality Level


bed wt., 750 mg


pk of 30


6 mL


silica gel (irregularly shaped, acid washed)

matrix active group

benzenesulfonic acid bonding, Polymerically bonded, coated with silver ions

particle size

50 μm

pore size

0.9 mL/g pore volume
70 Å pore size

surface area

480 m2/g


less than or equal to 1 mg (total FAMEs)

Featured Industry

Food and Beverages

separation technique

normal phase

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General description

Retention Mechanism: Normal phase (charge-transfer)
Sample Matrix Compatibility: Organic solvents, oils, and lipids

  • Developed for the fractionation of FAMEs based on degree of unsaturation, and for the resolution of cis/trans isomers.
  • Silver counter-ions are anchored onto an SCX support using a proprietary procedure to offer optimal resolution, performance, and capacity
  • Each lot is tested and quality controlled for cis/trans FAME resolution


Keywords: silver ion, silver nitrate, AgNO3

Legal Information

Discovery is a registered trademark of Sigma-Aldrich Co. LLC


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Hazard Statements

Precautionary Statements


NONH for all modes of transport

WGK Germany


Certificate of Analysis
Certificate of Origin
Taeho Kim et al.
ACS applied materials & interfaces, 8(44), 30449-30457 (2016-10-19)
A theranostic nanoparticle with biochemically triggered antibacterial activity is demonstrated. Metallic silver is deposited onto porous silicon nanoparticles (pSiNPs) by galvanic displacement. When aqueous diaminesilver ([Ag(NH
Hirofumi Goto et al.
Journal of oleo science, 61(2), 49-56 (2012-01-27)
We developed a novel pre-separation method of trans fatty acids (TFAs) using a silver-ion cartridge column and GC. As a preliminary study, a mixture of fatty acid methyl esters consisting of saturated, cis-unsaturated, and trans-unsaturated fatty acids was dissolved in...
Katsunori Anezaki et al.
Marine pollution bulletin, 113(1-2), 282-286 (2016-10-07)
We performed the first known study of polychlorinated biphenyls (PCBs) concentrations and patterns in the blubber and liver of a Hubbs' beaked whale. Samples were pretreated with Supelclean™ sulfoxide and Discovery® Ag-ION solid phase extraction cartridges to remove whale oil....
Fraction of cis/trans FAMEs Using Discovery<sup>®</sup> Ag-Ion SPE
Read More
Extraction of lipids as fatty acids, and subsequent detection of trans fats from a cookie sample made using partially hydrogenated vegetable oils - a Supelco technical article
Read More

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