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Life Sciences
If I have 2N NaOH hydrolyzed samples for an 8-iso-PGF<sub><span style="font-size: 10pt;">2a</span></sub> determination, do I need to extract these samples?
No, the Direct 8-iso-PGF2a kit is specifically designed to help you obtain results as quickly and easily as possible. The…
Tue, Jul 18, 2023
I am using the Direct 8-iso PGF<sub><span style="font-size: 10pt;">2a</span></sub> ELISA kit. After I add the HCl to neutralize my samples, it is not reading in the range of pH 6-8. What should I do?
At this point, you have added HCl to NaOH which will yield NaCl + H2O. There is little buffering capacity…
Tue, Jul 18, 2023
What is the difference between the 8-iso-PGF<sub><span style="font-size: 10pt;">2a</span></sub> ELISA kit and the Direct 8-iso-PGF<sub><span style="font-size: 10pt;">2a</span></sub> ELISA kit?
The regular 8-iso-PGF2a kit is designed to measure free isoprostane in samples. Direct 8-iso-PGF2a measures total isoprostane levels, both free…
Tue, Jul 18, 2023
Can I measure urinary steroid levels in Enzo’s hormone ELISA kits?
Steroids are relatively insoluble and must be altered by being conjugated to glucoronic acid for elimination. The antibodies in our…
Tue, Jul 18, 2023
Do I need to add Steroid Displacement Reagent to my samples prior to analysis with my hormone ELISA kits?
If total steroid levels are to be measured, Steroid Displacement Reagent (SDR) should be added to the samples containing binding…
Tue, Jul 18, 2023
My cell culture samples are in DMEM. Will this interfere with the Nitric Oxide assay?
Yes. The nitrate salt used in this particular media will cause interference. It is important to check the published media…
Tue, Jul 18, 2023
Can I run cell lysates with the Nitric Oxide detection kits?
Yes. First remove the media from the cells. Pellet them and wash with PBS before lysing the cells in the…
Tue, Jul 18, 2023
Can I measure tissue NO with the Nitric Oxide detection kits?
Yes. Samples can be homogenized in the provided Reaction Buffer and then centrifuged. The supernatant should then be filtered through…
Tue, Jul 18, 2023
How do I know whether to use the Nitric Oxide (NO<sub>2-</sub>/NO<sub>3-</sub>) detection kit or the Nitric Oxide (total) detection kit?
The regular kit measures both major metabolic products of NO — nitrate and nitrite. The Total kit measures these metabolites…
Tue, Jul 18, 2023
When using an IMMUNOSET® ELISA development set, how long can I store the components after I reconstitute them?
The reconstituted reagents should be aliquotted and stored at the temperature recommended in the instruction manual for up to three…
Tue, Jul 18, 2023