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Description
Mouse monoamine oxidase,MAO ELISA KitProduct Specification Usage Experimental equipment required for the experiment: 1. Microplate reader (450nm) 2. High precision pipette and gun tips: 0. 5 10uL, 5 50uL, 20 200uL, 200 1000uL 3. 37 constant temperature box 4. Distilled water or deionized water Sample processing and requirements: 1. Serum: Place the whole blood sample collected in the serum separation tube at room temperature for 2 hours or at 4 overnight, then centrifuge at 1000g for 20
Product Specification
| Usage |
Experimental equipment required for the experiment: 1. Microplate reader (450nm) 2. High-precision pipette and gun tips: 0.5-10uL, 5-50uL, 20-200uL, 200-1000uL 3. 37℃ constant temperature box 4. Distilled water or deionized water Sample processing and requirements: 1. Serum: Place the whole blood sample collected in the serum separation tube at room temperature for 2 hours or at 4℃ overnight, then centrifuge at 1000×g for 20 minutes, and take the supernatant, or store the supernatant at -20℃ or -80℃, but avoid repeated freezing and thawing. 2. Plasma: Collect specimens using EDTA or heparin as an anticoagulant and centrifuge at 1000×g for 15 minutes at 2-8°C within 30 minutes of collection. Remove the supernatant for testing, or store at -20°C or -80°C, but avoid repeated freezing and thawing. 3. Cell culture supernatant: Centrifuge at 1000×g for 20 minutes. Remove the supernatant for testing, or store at -20°C or -80°C, but avoid repeated freezing and thawing. Pre-Test Preparation: 1. Remove the test kit from the refrigerator 10 minutes in advance and equilibrate to room temperature. 2. Prepare a gradient standard working solution: Add 1 mL of universal diluent to the lyophilized standard. Let stand for 15 minutes to completely dissolve, then gently mix (concentration 10 ng/mL). Then dilute to the following concentrations: 10 ng/mL, 5 ng/mL, 2.5 ng/mL, 1.25 ng/mL, 0.625 ng/mL, 0.3125 ng/mL, 0.15625 ng/mL, and 0 ng/mL. Serial dilution method: Take seven EP tubes and add 500 μL of universal diluent to each tube. Pipette 500 μL of the 10 ng/mL standard working solution into the first EP tube and mix thoroughly to make a 5 ng/mL standard working solution. Repeat this procedure for subsequent tubes. The last tube serves as a blank well; there is no need to pipette liquid from the penultimate tube. See the figure below for details. 3. Preparation of biotinylated detection antibody working solution: Centrifuge the concentrated biotinylated antibody at 1000×g for 1 minute 15 minutes before use. Dilute the 100× concentrated biotinylated antibody to a 1× working concentration with universal diluent (e.g., 10uL concentrate + 990uL universal diluent). Prepare and use immediately. 4. Prepare the enzyme conjugate working solution: 15 minutes before use, centrifuge the 100× concentrated enzyme conjugate at 1000×g for 1 minute. Dilute the 100× concentrated HRP enzyme conjugate to a 1× working concentration with universal diluent (e.g., 10 μL of concentrate + 990 μL of universal diluent). Prepare immediately. 5. Prepare the 1× wash solution: Dispense 10 mL of 20× wash solution into 190 mL of distilled water (concentrated wash solution removed from the refrigerator may crystallize; this is normal. Allow to stand at room temperature until the crystals have completely dissolved before preparing). Procedure: 1. Remove the desired strips from the aluminum foil bag after equilibration at room temperature for 10 minutes. Seal the remaining strips in a ziplock bag and return to 4°C. 2. Sample addition: Add 100 μL of sample or standard of varying concentrations to the corresponding wells. Add 100 μL of universal diluent to the blank wells. Cover with a film and incubate at 37°C for 60 minutes. (Recommendation: Dilute the sample to be tested at least 1-fold with universal diluent before adding it to the ELISA plate. This will reduce the impact of matrix effects on the test results. The sample concentration should be multiplied by the corresponding dilution factor when calculating the final sample concentration. It is recommended to run replicates for all test samples and standards.) 3. Add Biotinylated Antibody: Remove the ELISA plate and discard the liquid without washing. Add 100 μL of Biotinylated Antibody Working Solution directly to each well. Cover with a film and incubate at 37°C for 60 minutes. 4. Wash: Discard the liquid and add 300 μL of 1x Wash Solution to each well. Let stand for 1 minute, shake off the wash solution, and pat dry on absorbent paper. Repeat this process three times (a plate washer can also be used). 5. Add Enzyme Conjugate Working Solution: Add 100 μL of Enzyme Conjugate Working Solution to each well. Cover with a film and incubate at 37°C for 30 minutes. 6. Washing: Discard the liquid and wash the plate five times as in step 4. 7. Adding substrate: Add 90 μL of substrate (TMB) to each well, cover with a sealing film, and incubate at 37°C in the dark for 15 minutes. 8. Adding stop solution: Remove the ELISA plate and add 50 μL of stop solution directly to each well. Immediately measure the OD value of each well at a wavelength of 450 nm. Calculating experimental results: 1. Calculate the average OD value of the standard and sample replicates and subtract the OD value of the blank well as a correction factor. Plot the standard curve of the four-parameter logistic function on double-logarithmic graph paper, with concentration as the horizontal axis and OD value as the vertical axis. 2. If the sample OD value is higher than the upper limit of the standard curve, dilute the sample appropriately and retest. Multiply the sample concentration by the corresponding dilution factor. |
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| Theory | This kit uses a double-antibody sandwich enzyme-linked immunosorbent assay (ELISA). Sample, standard, biotin-labeled detection antibody, and HRP enzyme conjugate are sequentially added to microwells pre-coated with monoamine oxidase and MAO capture antibodies. After incubation and washing, the sample is developed using the substrate TMB. TMB converts to blue under the catalysis of HRP and to yellow under the action of acid. The intensity of the color is positively correlated with the monoamine oxidase and MAO content in the sample. The absorbance (OD) is measured at 450 nm using a microplate reader to calculate the sample concentration. | |||||||||||||||||||||||||||||||||
| Source | Mouse | |||||||||||||||||||||||||||||||||
| Synonym | Mouse monoamine oxidase,MAO ELISA Kit | |||||||||||||||||||||||||||||||||
| Detection Type | Double antibody sandwich method | |||||||||||||||||||||||||||||||||
| Composition |
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| Background | Monoamine oxidases (MAO) are a family of enzymes that catalyze the oxidation of monoamines, using oxygen to remove their amine groups. They are found bound to the outer mitochondrial membrane of most cell types in the body. The first such enzyme was discovered in the liver by Mary Bernheim in 1928 and named tyramine oxidase. MAO belongs to a family of proteins called flavinamine oxidoreductases. They are important in breaking down monoamines ingested through food and also play a role in inactivating monoamine neurotransmitters. | |||||||||||||||||||||||||||||||||
| General Notes | 1. Strictly adhere to the specified incubation time and temperature to ensure accurate results. All reagents must be at room temperature (20-25°C) before use. Refrigerate reagents immediately after use. 2. Improper plate washing may result in inaccurate results. Ensure that all liquid in the wells is aspirated thoroughly before adding substrate. Do not allow the wells to dry out during incubation. 3. Remove any residual liquid and fingerprints from the bottom of the plate, as this will affect the OD value. 4. The substrate developer solution should be colorless or very light in color. Do not use substrate solution that has turned blue. 5. Avoid cross-contamination of reagents and specimens to prevent erroneous results. 6. Avoid direct exposure to strong light during storage and incubation. 7. Do not expose any reagents to bleaching solvents or the strong fumes emitted by bleaching solvents. Any bleaching agent will destroy the biological activity of the reagents in the kit. 8. Do not use expired products, and do not mix components with different product numbers and batches. 9. Recombinant proteins from sources other than the kit may not be compatible with the antibodies in this kit and will not be recognized. 10. If there is a possibility of disease transmission, all samples should be managed properly and samples and testing devices should be handled according to prescribed procedures. |
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| Storage Temp. | If the unopened kit is stored at 4°C, the shelf life is 6 months. | |||||||||||||||||||||||||||||||||
| Test Range | 0.156-10 ng/mL | |||||||||||||||||||||||||||||||||
| Applications | Serum, plasma, cell culture supernatant |
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4.8 ★★★★★
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Product Reviews
★★★★★ 5
Best Gift
Color: 2856 All Black Face/Black Band
“This watch was the perfect gift for my dad. It looks classy, feels high-quality, and suits him perfectly. Every time he wears it, it reminds him of how much he is loved and appreciated. Seeing the smile on his face made it even more special. A meaningful and timeless gift for any father.”
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Perfect gift
Color: 2856 Silver Black Face/Silver Band
Got it for a birthday gift and he loves it. The style was perfect. Great choice.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Feels cheap, but so far it's held up
Color: 2926 Silver Green
Looks as advertised, works well, and pretty water resistant thus far. Surprisingly water resistant. Unfortunately the band the watch comes with immediately felt a little cheap and flimsy to me. About a week after my purchase the band did inevitably break. The watch itself is still fantastic and everything works proper, like it should. Funny thing, I had left a review shortly after my purchase, talking about my dissatisfaction with how cheap the band felt. I have purchased many Olevs watches in the past and have had zero issues with any of them. I guess the company that makes or sells these watches read my review and asked about my dissatisfaction. I informed them of what happened, and they offered me a full refund. Originally I posted my review at three stars, just for that watch. All the other Olevs watches I have purchased are great. The customer service is so fantastic, this has never happened to me before so I am elated. They earned the five-star rating, and I would highly recommend checking out their collection of watches if you are a collector like me. I am overly confident if you do purchase one of these watches, and have any issue whatsoever with it, if you contact the customer service department they will be incredibly helpful as they have with me, and based off of my recent experience, I am sure they will do whatever it takes to make things right with you. Well done, very surprising customer service department. Very refreshing these days. Based on customer satisfaction alone they get five stars from me!
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Reviewed in the United States on August 26, 2025
★★★★★ 4
Nice watch, cheap band sizing tool.
Color: 2856 All Black Face/Black Band
Nice watch, but watch band link removal tool is made of plastic and broke when trying to size the watch band.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Looks Awesome
Color: 2856 Silver Black Face/Silver Band
Bought this for our son for a fun watch and he loves it !
Looks amazing ! It did take a little bit of time to make it fit his wrist , but after that it was great
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Reviewed in the United States on May 4, 2026
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