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Cellular Analysis
What is the purpose of treating samples with 5% metaphosphoric acid (MPA)?
MPA should be added to fresh samples prior to sample handling or sample storage. That is required to deproteinize samples…
Tue, Jul 18, 2023
What is the principle of the Glutathione (GSSG/GSH) assay?
The Glutathione (total), detection kit is a complete kit that allows the determination of total, reduced, and oxidized glutathione concentrations…
Tue, Jul 18, 2023
What can interfere with the assay?
Reducing agents (such as ascorbic acid, beta-mercaptoethanol, dithiothreitol, and cysteine) and thiol reactive compounds (such as maleimides) are known to…
Tue, Jul 18, 2023
Nuclear counterstain is too bright compared to the organelle stain.
Different microscopes, cameras and filters may make some signals appear very bright. Reduce the concentration of the nuclear counterstain or…
Tue, Jul 18, 2023
The dyes fail to stain acidic organelles in fixed and/or permeabilized cells.
The following kits are only suitable for live cell staining only. Use them only for live cell analysis. Cyto-ID® Autophagy…
Tue, Jul 18, 2023
Poor staining is observed in the positive control.
Stained reagents have been exposed to strong light. Protect samples from exposure to strong light and analyze them immediately after…
Tue, Jul 18, 2023
Protein signal is saturated.
The concentration from protein sample is too high. Dilute the sample further with 1X Assay Buffer.
Tue, Jul 18, 2023
Values for this assay are reported as pmol/well. How can I convert the values obtained by this kit into a value that is more commonly reported in the literature, such as pmol/L (pM)?
Since the volume of sample added to each well is 50µL, results can be converted to molarity by multiplying by…
Tue, Jul 18, 2023
After having measured the total glutathione content, is it possible to use the same samples on the plate so as to continue the procedure and measure the oxidized form of glutathione?
The measurements of total and oxidized glutathione are two completely different events; it is therefore not possible to use the…
Tue, Jul 18, 2023
Organelles are not sufficiently stained.
Very low concentration of dye was used, or dye was incubated with the cells for an insufficient length of time.…
Tue, Jul 18, 2023