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Cellular Analysis
Well-to-well variation observed
Incorrect dispensing and/or experimental setup parameter used. A fluorescence microplate reader with automatic dispensing should be used for assays requiring precise…
Tue, Jul 18, 2023
More than two populations appear upon apoptosis induction.
It's the property of the dye. Apoptosis is a multi-stage process and Nuclear-ID green dye can distinguish different levels of…
Tue, Jul 18, 2023
Mito-ID cell staining is too strong
Mitochondrial membrane potential dye is too concentrated for the cell type used. Optimize for different cell types by diluting the…
Tue, Jul 18, 2023
Do I need a luminometer with double injectors for this assay?
Yes. A single injector will not provide good results. You cannot pre-mix the arachidonic acid and substrate to make a…
Tue, Jul 18, 2023
Can I use cell culture samples in the COX Activity assay?
Cell culture samples are compatible with this kit. Since this is an activity assay rather than a quantitative immunoassay, there…
Tue, Jul 18, 2023
In the sPLA2 activity kit (ADI-907-002), how is a Unit defined?
One unit of phospholipase activity is the amount of enzyme needed to hydrolyze 1.0 µmole of L-a-phosphatidylcholine to L-a-lysophosphatidylcholine and…
Tue, Jul 18, 2023
DNA histograms are of poor overall quality.
The key elements in obtaining a histogram of high quality are good sample preparation, correct cell-to dye ratio and proper…
Tue, Jul 18, 2023
No decrease of the fluorescent signal after using a specific inhibitor
Inhibitor concentration is too low or too high. Very low doses of inhibitor may not affect ROS production by inducer.…
Tue, Jul 18, 2023
Low or no fluorescent signal in positive control
Species of interest may react with each other, thus attenuating the expected signal. ROS is a complex interacting system. Blocking…
Tue, Jul 18, 2023
Can I use the COX activity kit to distinguish between COX-1 and -2?
The COX Activity kits measure activity alone, distinguishing between COX-1 or -2. In order to differentiate between the two enzymes,…
Tue, Jul 18, 2023