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Iron Death Study - Cellular Ferrous Iron Assay FAQ

Time：

2023-05-16

Increased cellular ferrous content is a key feature of iron death that distinguishes it from other forms of cell death, and its detection is one of the most common indicators of iron death research. Based on the hot market feedback, Elabscience® has increased its R&D and optimization efforts and launched a highly sensitive ferrous ion colorimetric test kit specifically for cellular samples

Increased cellular ferrous content is a key feature of iron death that distinguishes it from other forms of cell death, and its detection is one of the most common indicators of iron death research. Based on the feedback from market hotspots, Elabscience® has stepped up its R&D and optimization efforts and launched a highly sensitive ferrous ion colorimetric test kit specifically for cellular samples

　　Below are some frequently asked questions about cellular ferrous iron assays to help you complete your experiments more smoothly.

　　Q1: How many cells are needed for the ferrous cell assay?

　　This kit requires approximately 106 cells per sample. Compared with the previous ferrous ion colorimetric test kit, the number of samples required is greatly reduced.

　　Q2: How is the cell sample crushed and processed?

　　This kit uses cell lysis solution to process the cell samples. After adding the lysis solution, the supernatant can be centrifuged to take the supernatant for measurement by simply standing on the ice box for 10 minutes, which effectively improves the efficiency of cell fragmentation and prevents the oxidation of ferrous ions at the same time.

　　Q3: Why is there no gradient in the OD value of the measured standards?

　　The standards in the experiment are ferrous ions, which are easily oxidized when left at room temperature. It is better to prepare them on demand before use and minimize the sitting time after the reagent preparation is completed. In addition, the optimized kit is configured with special dilutions of standards, which can greatly extend the storage time of standards after preparation.

　　Q4: How to prevent air bubbles in the wells of the enzyme plate when adding the chromogenic agent?

　　Air bubbles in the wells of the enzyme plate can cause wrong OD values to be read when the instrument detects. When adding the chromogenic solution, put the pipette tip close to the inner wall of the plate well and add it slowly to reduce the bubbles and use the "aspirate two to one" pipette operation to avoid bubbles.

　　Q5：What is the detection wavelength of the kit?

　　The chromogenic substance of this experiment has the largest characteristic absorption peak at 593nm, and can be detected in the wavelength range of 590-600nm.

　　Q6：What is the reason for failing to detect the sample value?

　　It may be that the measured cells have a low ferrous ion content and the sample has a ferrous ion content lower than the detection limit of the kit. The number of sample cells can be increased appropriately to increase the concentration of ferrous ions in the assay sample.

　　Q7：When calculating the final result

　　Can the correction be made by measuring the protein content?

　　The final results of this assay are not suitable for correction by protein content because the reagents used to prepare the samples interfere with the protein assay results. It is recommended to perform a cell count before sample processing and to use the cell count for the correction calculation.