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Yes, you can run an MTT assay on suspension cells, but don't dump the media! You risk losing your sample. Learn the two critical methods—Centrifugation vs. Direct Solubilization—to ensure accurate viability data without washing your cells down the drain.

High background absorbance in MTT assays can ruin weeks of research, often caused by chemical interference, serum precipitation, or microbial contamination. This guide dives into the "purple haze" of false signals, offering expert troubleshooting tips—from using proper background controls to swapping media—to ensure your OD readings reflect true cellular health. Discover how to refine your protocol and when to switch to alternative assays.