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QuicKey Human PCT(Procalcitonin) ELISA Kit

  • Cat.No.:E-TSEL-H0002

  • Reactivity: Human

To Purchase E-TSEL-H0002

Size:
  • 96T
  • 48T
  • 24T
  • 96T*5
  • 96T*10
Price: $390
Qty:

Product Details

QuicKey Series

Get more sensitive and precise results with saving at least 1h comparing to traditional ELISA Kits. The new developed technology in house will help to accelerate your science research in a more efficient way.

Properties

Assay type Sandwich-ELISA
Format 96T/48T
Assay time 2.5h
Detection range 0.31-20 ng/mL
Sensitivity 0.08 ng/mL
Sample type &Sample volume serum, plasma, urine; 50μL
Specificity This kit recognizes Human PCT in samples. No significant or interference between Human PCT and analogues was observed.
Reproducibility Both intra-CV and inter-CV are < 10%.
Application This ELISA kit applies to the in vitro quantitative determination of Human PCT concentrations in serum, plasma, urine.Please consult technical support for the applicability if other biological fluids need to be tested.

Test Principle

This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human PCT. Samples (or Standards) and biotinylated detection antibody specific for Human PCT are added to the micro ELISA plate wells. Human PCT would combine with the specific antibody. Then Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human PCT, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 ± 2 nm. The OD value is proportional to the concentration of Human PCT. You can calculate the concentration of Human PCT in the samples by comparing the OD of the samples to the standard curve.

Kit components & Storage

An unopened kit can be stored at 2-8℃ for six months. After test, the unused wells and reagents should be stored according to the table below.
ItemSpecificationsStorage conditions after test
Micro ELISA Plate (Dismountable) 96T: 8 wells ×12 strips
48T: 8 wells ×6 strips
2-8℃, 1 month
Reference Standard 96T: 2 vials
48T: 1 vial
Discard unused reconstituted standard and dilutions
Reference Standard & Sample Diluent 1 vial, 20 mL 2-8℃
Biotinylated Detection Ab Working Solution 1 vial, 6 mL
HRP Conjugate Diluent 1 vial, 14 mL
Concentrated Wash Buffer (25×) 1 vial, 30 mL
Concentrated HRP Conjugate (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
2-8℃ (Protect from light)
Substrate Reagent 1 vial, 10 mL
Stop Solution 1 vial, 10 mL 2-8℃
Plate Sealer 5 pieces
Product Description 1 copy
Certificate of Analysis 1 copy

Technical Data

Sample Values

sandwich-Ab-ELISA-Elabscience

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human PCT were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human PCT were tested on 3 different plates, 20 replicates in each plate.

  Intra-assay Precision Inter-assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean (ng/mL) 0.99 2.49 9.15 0.97 2.47 8.00
Standard deviation 0.06 0.12 0.40 0.06 0.12 0.39
CV (%) 6.06 4.82 4.37 6.19 4.86 4.88

Recovery

The recovery of Human PCT spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type Range (%) Average Recovery (%)
Serum(n=8) 95-102 99
EDTA plasma(n=8) 86-99 93
Urine(n=8) 87-98 90

Linearity

Samples were spiked with high concentrations of Human PCT and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

sandwich-Ab-ELISA-Elabscience

Target Information

Background

Procalcitonin (PCT), the precursor of the hormone calcitonin, comprises 116 amino acids and is present in minute quantities under healthy conditions[1]. PCT and other calcitonin precursors in serum are present at less than 50 pg/mL in healthy individuals, but are highly elevated in serum where conditions leading to systemic inflammatory response syndrome or sepsis prevail. The level of PCT has been observed to increase significantly with bacterial infection and correlate to the severity of the infection. Therefore, serum PCT has been considered a powerful biomarker for the diagnosis of bacterial infection[2]. PCT has been proven to have high accuracy as a marker of infection in adult patients, particularly in sepsis. In children it has been investigated in several conditions, including neonatal sepsis, severe infection in neutropenic children, and other specific bacterial infections (e.g. urinary tract infections, pneumonia, bone and joint tissue infections).
1. Christ-Carin M. Procalcitonin in bacterial infections-hype, hope, more or less?[J]. Swiss medical weekly, 2005, 135(3132).
2. Brechot N, Hekimian G, Chastre J, et al. Procalcitonin to guide antibiotic therapy in the ICU[J]. International journal of antimicrobial agents, 2015, 46: S19-S24.
Database LinksSwissProt: P01258
Entrez Gene: 796
SynonymsPCT
Research AreaCancer, Signal transduction

Assay Procedures

step01

1. Add 50μL standard or sample to the wells, immediately add 50μL Biotinylated Detection Ab working solution to each well. Incubate for 90 min at 37°C

step02

2. Aspirate and wash the plate for 3 times

step03

3. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times

step04

4. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C

step05

5. Add 50μL Stop Solution

step06

6. Read the plate at 450nm immediately. Calculation of the results

Citations

  1. EUROPEAN JOURNAL OF CLINICAL INVESTIGATION (2020) IF: 3.481
    Inflammatory markers in saliva for diagnosis of sepsis of hospitalizes patients

    DOI: 10.1111/eci.13219

    Sample: saliva
  2. JOURNAL OF INFECTION AND CHEMOTHERAPY (2021) IF: 2.211
    Diagnostic values of HNP 1-3 and procalcitonin levels in synovial fluid aspirates in the differential diagnosis between septic arthritis and noninfectious arthritis

    DOI: 10.1016/j.jiac.2021.07.003

    PMID: 34294530

    Sample: synovial fluid
  3. Journal of Maternal-Fetal & Neonatal Medicine (2018) IF: 1.493
    Comparison between presepsin and procalcitonin in early diagnosis of neonatal sepsis

    DOI: 10.1080/14767058.2018.1475643

    Sample: blood
  4. EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY (2019) IF: 1.75
    Does procalcitonin have a role in the pathogenesis of nasal polyp?

    DOI: 10.1007/s00405-019-05326-7

    PMID: 30739179

    Sample: Tissue homogenate
  5. Tropical Diseases Travel Medicine and Vaccines (2022)
    Procalcitonin levels in children affected by severe malaria compared to those with uncomplicated malaria in the absence of bacterial infection: a cross-sectional study

    DOI: 10.1186/s40794-022-00163-9

    Sample: Plasma
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