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CRP ELISA Kit

CRP Reactivity: Rabbit Colorimetric Sandwich ELISA 0.15 ng/mL - 10 ng/mL Plasma, Serum
Catalog No. ABIN415975
  • Target See all CRP ELISA Kits
    CRP (C-Reactive Protein (CRP))
    Reactivity
    • 8
    • 8
    • 5
    • 5
    • 4
    • 3
    • 3
    • 2
    • 2
    • 2
    • 2
    • 1
    • 1
    • 1
    Rabbit
    Detection Method
    Colorimetric
    Method Type
    Sandwich ELISA
    Detection Range
    0.15 ng/mL - 10 ng/mL
    Minimum Detection Limit
    0.15 ng/mL
    Application
    ELISA
    Purpose
    The kit is a sandwich enzyme immunoassay for in vitro quantitative measurement of CRP in Serum,Plasma,Biological Fluids
    Sample Type
    Plasma, Serum
    Analytical Method
    Quantitative
    Specificity

    This assay has high sensitivity and excellent specificity for detection of C Reactive Protein (CRP).
    No significant cross-reactivity or interference between C Reactive Protein (CRP) and analogues was observed.

    Cross-Reactivity (Details)
    No significant cross-reactivity or interference between C Reactive Protein (CRP) and analogues was observed.
    Sensitivity
    0.072 ng/mL
    Components
    • Pre-coated, ready to use 96-well strip plate, flat buttom
    • Plate sealer for 96 wells
    • Reference Standard
    • Standard Diluent
    • Detection Reagent A
    • Detection Reagent B
    • Assay Diluent A
    • Assay Diluent B
    • Reagent Diluent (if Detection Reagent is lyophilized)
    • TMB Substrate
    • Stop Solution
    • Wash Buffer (30 x concentrate)
    • Instruction manual
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    Discover our top product CRP ELISA Kit
  • Application Notes
    • Limited by the current condition and scientific technology, we cannot completely conduct the comprehensive identification and analysis on the raw material provided by suppliers. So there might be some qualitative and technical risks to use the kit.
    • The final experimental results will be closely related to validity of the products, operation skills of the end users and the experimental environments. Please make sure that sufficient samples are available.
    • Kits from different batches may be a little different in detection range, sensitivity and color developing time.
    • Do not mix or substitute reagents from one kit lot to another. Use only the reagents supplied by manufacturer.
    • Protect all reagents from strong light during storage and incubation. All the bottle caps of reagents should be covered tightly to prevent the evaporation and contamination of microorganism.
    • There may be some foggy substance in the wells when the plate is opened at the first time. It will not have any effect on the final assay results. Do not remove microtiter plate from the storage bag until needed.
    • Wrong operations during the reagents preparation and loading, as well as incorrect parameter setting for the plate reader may lead to incorrect results. A microplate plate reader with a bandwidth of 10nm or less and an optical density range of 0-3 O.D. or greater at 450 ± 10nm wavelength is acceptable for use in absorbance measurement. Please read the instruction carefully and adjust the instrument prior to the experiment.
    • Even the same operator might get different results in two separate experiments. In order to get better reproducible results, the operation of every step in the assay should be controlled. Furthermore, a preliminary experiment before assay for each batch is recommended.
    • Each kit has been strictly passed Q.C test. However, results from end users might be inconsistent with our in-house data due to some unexpected transportation conditions or different lab equipments. Intra-assay variance among kits from different batches might arise from above factors, too.
    • Kits from different manufacturers for the same item might produce different results, since we have not compared our products with other manufacturers.
    Comment

    Information on standard material:
    The standard might be recombinant protein or natural protein, that will depend on the specific kit. Moreover, the expression system is E.coli or yeast or mammal cell. There is 0.05% proclin 300 in the standard as preservative.

    Information on reagents:
    The stop solution used in the kit is sulfuric acid with concentration of 1 mol/L. And the wash solution is TBS. The standard diluent contains 0.02 % sodium azide, assay diluent A and assay diluent B contain 0.01% sodium azide. Some kits can contain is BSA in them.

    Information on antibodies:
    The provided antibodies and their host vary in different kits.

    Sample Volume
    100 μL
    Assay Time
    3 h
    Plate
    Pre-coated
    Protocol
    The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to C Reactive Protein (CRP). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to C Reactive Protein (CRP). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain C Reactive Protein (CRP), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of C Reactive Protein (CRP) in the samples is then determined by comparing the O.D. of the samples to the standard curve.
    Reagent Preparation
    1. Bring all kit components and samples to room temperature (18-25 °C) before use. If the kit will not be used up in one time, please only take out strips and reagents for present experiment, and leave the remaining strips and reagents in required condition.
    2. Standard - Reconstitute the Standard with 1.0 mL of Standard Diluent, keep for 10 minutes at room temperature, shake gently (not to foam). The concentration of the standard in the stock solution is 20 ng/mL. Firstly dilute the stock solution to 10 ng/mL and the diluted standard serves as the highest standard (10 ng/mL). Then prepare 7 tubes containing 0.5 mL Standard Diluent and use the diluted standard to produce a double dilution series. Mix each tube thoroughly before the next transfer. Set up 7 points of diluted standard such as 10 ng/mL, 5 ng/mL, 2.5 ng/mL, 1.25 ng/mL, 0.625 ng/mL, 0.312 ng/mL, 0.156 ng/mL, and the last microcentrifuge tube with Standard Diluent is the blank as 0 ng/mL.
    3. Detection Reagent A and Detection Reagent B - If lyophilized reconstitute the Detection Reagent A with 150μL of Reagent Diluent, keep for 10 minutes at room temperature, shake gently (not to foam). Briefly spin or centrifuge the stock Detection A and Detection B before use. Dilute them to the working concentration 100-fold with Assay Diluent A and B, respectively.
    4. Wash Solution - Dilute 20 mL of Wash Solution concentrate (30x) with 580 mL of deionized or distilled water to prepare 600 mL of Wash Solution (1x).
    5. TMB substrate - Aspirate the needed dosage of the solution with sterilized tips and do not dump the residual solution into the vial again.

    Note:

    1. Making serial dilution in the wells directly is not permitted.
    2. Prepare standards within 15 minutes before assay. Please do not dissolve the reagents at 37 °C directly.
    3. Please carefully reconstitute Standards or working Detection Reagent A and B according to the instruction, and avoid foaming and mix gently until the crystals are completely dissolved. To minimize imprecision caused by pipetting, use small volumes and ensure that pipettors are calibrated. It is recommended to suck more than 10μL for one pipetting.
    4. The reconstituted Standards, Detection Reagent A and Detection Reagent B can be used only once.
    5. If crystals have formed in the Wash Solution concentrate (30x), warm to room temperature and mix gently until the crystals are completely dissolved.
    6. Contaminated water or container for reagent preparation will influence the detection result.
    Assay Precision

    Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level C Reactive Protein (CRP) were tested 20 times on one plate, respectively.
    Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level C Reactive Protein (CRP) were tested on 3 different plates, 8 replicates in each plate.
    CV(%) = SD/meanX100
    Intra-Assay: CV<10%
    Inter-Assay: CV<12%

    Restrictions
    For Research Use only
  • Precaution of Use
    The Stop Solution suggested for use with this kit is an acid solution. Wear eye, hand, face, and clothing protection when using this material.
    Handling Advice
    The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5 % within the expiration date under appropriate storage condition.
    To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.
    Storage
    4 °C
    Storage Comment
    • For unopened kit: All the reagents should be kept according to the labels on vials. The Standard, Detection Reagent A, Detection Reagent B and the 96-well strip plate should be stored at -20°C upon receipt while the others should be at 4°C.
    • For opened kit: When the kit is opened, the remaining reagents still need to be stored according to the above storage condition. Besides, please return the unused wells to the foil pouch containing the desiccant pack, and reseal along entire edge of zip-seal.
      Note: It is highly recommended to use the remaining reagents within 1 month provided this is within the expiration date of the kit.
    • For ELISA kit, 1 day storage at 37°C can be considered as 2 months at 4°C, which means 3 days at 37°C equaling 6 months at 4°C.
    Expiry Date
    6 months
  • Liu, Pei, Wang, Li, Zhao, Song, Chen, Liu: "The immune impact of mimic endoscopic retrograde appendicitis therapy and appendectomy on rabbits of acute appendicitis." in: Oncotarget, Vol. 8, Issue 39, pp. 66528-66539, (2017) (PubMed).

    Hacibeyo?lu, Sarita?, Sarita?, Korkmaz, Sevimli, Mehmeto?lu, Otelcio?lu: "The determination of histopathological and biochemical effects of the rabbit knee joint injected dexketoprofen trometamol." in: Fundamental & clinical pharmacology, Vol. 29, Issue 1, pp. 79-85, (2015) (PubMed).

    Fang, Ning, Waqar, Niimi, Li, Satoh, Shiomi, Ye, Dong, Fan: "Bisphenol A exposure induces metabolic disorders and enhances atherosclerosis in hyperlipidemic rabbits." in: Journal of applied toxicology : JAT, Vol. 35, Issue 9, pp. 1058-70, (2015) (PubMed).

    Lin, Chen, Lei, You, Huang, Luo, Li, Zhao, Yan: "Effects of Intravenous Injection of Porphyromonas gingivalis on Rabbit Inflammatory Immune Response and Atherosclerosis." in: Mediators of inflammation, Vol. 2015, pp. 364391, (2015) (PubMed).

    Zhu, Li, Jin, Weng, Fan, Zheng, Li, Wang, Wang, Hu, Lv, Liu: "Celastrol may have an anti-atherosclerosis effect in a rabbit experimental carotid atherosclerosis model." in: International journal of clinical and experimental medicine, Vol. 7, Issue 7, pp. 1684-91, (2014) (PubMed).

    Um, Hwang, Choi, Ahn, Jung, Ha: "Curcumin attenuates adhesion molecules and matrix metalloproteinase expression in hypercholesterolemic rabbits." in: Nutrition research (New York, N.Y.), Vol. 34, Issue 10, pp. 886-93, (2014) (PubMed).

    Lu, Liu, Zhang, Yang, Liu, Yan, Wang, Bai, Zhao, Jiang: "Unpredictable chronic mild stress promotes atherosclerosis in high cholesterol-fed rabbits." in: Psychosomatic medicine, Vol. 74, Issue 6, pp. 604-11, (2012) (PubMed).

    Li, Wang, Zeng, Feng, Cheng, Mao, Wang, Deng: "Metformin inhibits nuclear factor kappaB activation and decreases serum high-sensitivity C-reactive protein level in experimental atherogenesis of rabbits." in: Heart and vessels, Vol. 24, Issue 6, pp. 446-53, (2010) (PubMed).

  • Target See all CRP ELISA Kits
    CRP (C-Reactive Protein (CRP))
    Alternative Name
    C Reactive Protein (CRP) (CRP Products)
    Synonyms
    PTX1 ELISA Kit, crp ELISA Kit, AI255847 ELISA Kit, Aa1249 ELISA Kit, Ab1-341 ELISA Kit, Ab2-196 ELISA Kit, Ac1-114 ELISA Kit, Ac1262 ELISA Kit, Ac2-069 ELISA Kit, Ba2-693 ELISA Kit, APCS ELISA Kit, 0610010I23Rik ELISA Kit, AW743261 ELISA Kit, C77570 ELISA Kit, CRP2 ELISA Kit, CRP4 ELISA Kit, Crp ELISA Kit, ESP1 ELISA Kit, Hlp ELISA Kit, CRP5.1 ELISA Kit, zgc:152809 ELISA Kit, C-reactive protein ELISA Kit, C-reactive protein, pentraxin-related ELISA Kit, c-reactive protein, pentraxin-related ELISA Kit, cysteine rich protein 2 ELISA Kit, CRP ELISA Kit, crp ELISA Kit, Crp ELISA Kit, Crip2 ELISA Kit, LOC776376 ELISA Kit
    UniProt
    P02742
    Pathways
    Carbohydrate Homeostasis
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