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Description
Mouse GPX1 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: 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: 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. Plasma: Collect specimens using EDTA or heparin as anticoagulants and centrifuge them at 1000×g for 15 minutes at 2-8℃ within 30 minutes of collection. The supernatant can be tested or stored at -20℃ or -80℃, but repeated freezing and thawing should be avoided. Other biological fluids: Centrifuge at 1000xg for 20 minutes, remove the supernatant, and test. Pre-test preparation: 1. Remove the test kit from the refrigerator 10 minutes in advance and equilibrate to room temperature. 2. Prepare the standard gradient working solution: Add 1 mL of universal diluent to the lyophilized standard, let it stand for 15 minutes to completely dissolve, then gently mix (concentration is 20 ng/mL). Then dilute to the following concentrations: 20 ng/mL, 10 ng/mL, 5 ng/mL, 2.5 ng/mL, 1.25 ng/mL, 0.625 ng/mL, 0.3125 ng/mL, and 0 ng/mL. Serial dilution method: Take 7 EP tubes and add 500 μL of universal diluent to each tube. Pipette 500 μL of the 20 ng/mL standard working solution into the first EP tube and mix thoroughly to make a 10 ng/mL standard working solution. Repeat this procedure for subsequent tubes. The last tube serves directly as a blank well; there is no need to aspirate the liquid from the penultimate tube. See the figure below for details. 3. Preparation of Biotinylated Antibody Working Solution: 15 minutes before use, centrifuge the concentrated biotinylated antibody at 1000×g for 1 minute. Dilute the 100× concentrated biotinylated antibody to a 1× working concentration using universal diluent (e.g., 10µL concentrate + 990µL universal diluent). Prepare immediately before use. 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 conjugate are sequentially added to microwells pre-coated with a glutathione peroxidase 1 (GPX1) capture antibody. 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 amount of glutathione peroxidase 1 (GPX1) in the sample. The absorbance (OD) is measured at 450 nm using a microplate reader to calculate the sample concentration. | |||||||||||||||||||||||||||||||||
| Source | Mouse | |||||||||||||||||||||||||||||||||
| Synonym | Mouse Glutathione Peroxidase 1 ELISA Kit | |||||||||||||||||||||||||||||||||
| Detection Type | Double antibody sandwich method | |||||||||||||||||||||||||||||||||
| Composition |
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| Background | Glutathione peroxidase 1, also known as GPX1, is an enzyme encoded by the GPX1 gene. This gene encodes a member of the glutathione peroxidase family. Glutathione peroxidase detoxifies hydrogen peroxide and is one of the most important antioxidant enzymes. It is characterized by a polymorphism in the N-terminal alanine sequence, including three alleles with five, six, or seven alanine (Ala) repeats. The allele with five Ala repeats is significantly associated with breast cancer risk. | |||||||||||||||||||||||||||||||||
| 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 | 0.31-20 ng/mL | |||||||||||||||||||||||||||||||||
| Applications | Serum, plasma, and other biological fluids |
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Strong, Reliable Plates That Handle Any Meal
Size: Extra Large (Pack of 1)
I’ve been using the Dixie Ultra Large Paper Plates for a while now, and they really stand out from regular paper plates. At 11 inches, they’re a great size for big meals, and the 25-count pack lasts long enough for gatherings or family dinners. What impressed me the most is how sturdy they are—3 times stronger than typical paper plates.
These plates hold up well even with heavy or messy foods without bending or leaking, which is a huge plus. They’re also microwave-safe, so reheating food is easy without worrying about the plate falling apart. Plus, they’re soak-proof and cut resistant, making them perfect for anything from saucy pasta to juicy burgers.
If you want plates that won’t fail you during mealtime, these Dixie Ultra plates are a solid choice for strength and convenience.
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Reviewed in the United States on May 19, 2025
★★★★★ 5
Fantastic plates!
Size: Extra Large (Pack of 1)
These plates were huge--perfect for the Thanksgiving feast. The plates were sturdy and held up to the weight of the food. Even others in attendance commented on how good the plates were and that they were big enough to hold larger portions which meant people didn't have to go back for seconds. The thickness of the plates was good--gravy didn't leak through. I plan to buy them again for future large holiday meals.
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Reviewed in the United States on December 1, 2025
★★★★★ 5
Sturdy
Size: Extra Large (Pack of 1)
Great size. Very sturdy. Exactly what I needed.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Great plates for the holidays and family gatherings!
Size: Extra Large (Pack of 1), Size: Extra Large (Pack of 1)
These plates are sturdy and designed to hold even the heaviest of meals without bending or folding, which is a huge plus when you're serving barbecue or pasta dishes.
One of the standout features is their size; they’re large enough to accommodate generous portions, making them perfect for parties or picnics. I also appreciated the attractive design, which adds a nice touch to the table setting.
Cleanup was a breeze, as they are disposable and save me from the hassle of washing up after the event. Additionally, they don’t soak through easily, so I didn’t have to worry about any leaks or messes, even with saucy foods.
Overall, I highly recommend Dixie Ultra Large Paper Plates for anyone looking for a reliable and stylish disposable plate option. They combine functionality with aesthetic appeal, making them a perfect choice for any occasion!
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Reviewed in the United States on May 15, 2025
★★★★★ 4
Sturdy and Reliable Plates for Any Occasion!
Size: Extra Large (Pack of 1)
The Dixie Ultra Large Paper Plates are truly impressive in quality and design. They feel incredibly sturdy, living up to the promise of being 3X stronger than standard paper plates. I love the 11-inch size — it’s perfect for big, heavy, and messy meals without worrying about leaks or spills. The soak-proof coating and microwave-safe feature make them super convenient. The design is also bright and festive without being too flashy. These plates are now a must-have in my kitchen for family dinners and parties!
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Reviewed in the United States on April 26, 2025