Human PYY (Peptide YY) CLIA Kit-Laboratory Biological Research Reagents Manufacturer for Life Science - Elabscience

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Human PYY (Peptide YY) CLIA Kit

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Price:   $682
Cat Number:  E-CL-H0803
Lead Time:   Order now, ship in 3 days

Reactivity:  Human

Detection Range:  7.81~500 pg/mL

Sensitivity:  4.69 pg/mL

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Intended use

This CLIA kit applies to the in vitro quantitative determination of Human PYY concentrations in serum, plasma and other biological fluids.

Test principle

This CLIA kit uses the Sandwich-CLIA principle. The micro CLIA plate provided in this kit has been pre-coated with an antibody specific to Human PYY. Standards or samples are added to the micro CLIA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human PYY and 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 PYY, biotinylated detection antibody and Avidin-HRP conjugate will appear fluorescence. The Relative light unit (RLU) value is measured by the Chemiluminescence immunoassay analyzer. The RLU value is positively associated with the concentration of Human PYY. You can calculate the concentration of Human PYY in the samples by comparing the RLU value of the samples to the standard curve.

Assay type Sandwich-CLIA
Format 96T
Assay time 3.5h
Reactivity Human
Detection method Chemiluminescence
Detection range 7.81-500 pg/mL
Sensitivity 4.69 pg/mL
Sample volume 100μL
Sample type serum, plasma and other biological fluids
Repeatability CV < 15%

Specificity

This kit recognizes Human PYY in samples. No significant cross-reactivity or interference between Human PYY and analogues was observed.

Typical data

As the RLU values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, washing technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data is provided below for reference only.

Concentration
(pg/mL)
RLU Average Corrected
500 47641
55433
51537 51508
250 19181
22815
20998 20969
125 9428
9364
9396 9367
62.5 4421
4603
4512 4483
31.25 2473
2125
2299 2270
15.63 1275
1225
1250 1221
7.81 708
772
740 711
0 28
30
29 --
CLIA-Elabscience

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human PYY were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human PYY 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 (pg/mL) 25.94 58.18 178.19 24.38 63.39 167.28
Standard deviation 3.16 6.85 17.62 2.63 6.20 17.11
C V (%) 12.18 11.77 9.89 10.79 9.78 10.23

Recovery

The recovery of Human PYY 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=5) 95-108 101
EDTA plasma (n=5) 90-105 97
Cell culture media (n=5) 90-103 97

Linearity

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

    Serum (n=5) EDTA plasma (n=5) Cell culture media (n=5)
1:2 Range (%) 96-111 98-115 90-103
Average (%) 104 106 95
1:4 Range (%) 87-97 90-104 95-111
Average (%) 92 96 102
1:8 Range (%) 91-104 103-119 94-107
Average (%) 99 109 100
1:16 Range (%) 89-105 96-112 91-108
Average (%) 96 103 99

Kit Components& Storage

An unopened kit can be stored at 4℃ for 1 month. If the kit is not used within 1 month, store the items separately according to the following conditions once the kit is received.

Item Specifications Storage
Micro CLIA Plate(Dismountable) 8 wells ×12 strips -20℃, 6 months
Reference Standard 2 vials
Concentrated Biotinylated Detection Ab (100×) 1 vial, 120 μL
Concentrated HRP Conjugate (100×) 1 vial, 120 μL -20℃(shading light), 6 months
Reference Standard & Sample Diluent 1 vial, 20 mL 4℃, 6 months
Biotinylated Detection Ab Diluent 1 vial, 14 mL
HRP Conjugate Diluent 1 vial, 14 mL
Concentrated Wash Buffer (25×) 1 vial, 30 mL
Substrate Reagent A 1 vial, 5 mL 4℃ (shading light)
Substrate Reagent B 1 vial, 5 mL 4℃ (shading light)
Plate Sealer 5 pieces
Product Description 1 copy
Certificate of Analysis 1 copy

Note: All reagent bottle caps must be tightened to prevent evaporation and microbial pollution.
The volume of reagents in partial shipments is a little more than the volume marked on the label, please use accurate measuring equipment instead of directly pouring into the vial(s).

Other supplies required

  • Chemiluminescence immunoassay analyzer
  • High-precision transfer pipette, EP tubes and disposable pipette tips
  • Incubator capable of maintaining 37℃
  • Deionized or distilled water
  • Absorbent paper
  • Loading slot for Wash Buffer

Assay procedure

1.Add 100 μL of standard or sample to each well. Incubate for 90 min at 37℃.

2.Remove the liquid.

3.Add 100 μL Biotinylated Detection Ab. Incubate 1 hour at 37℃. Aspirate and wash 3 times.

4.Add 100 μL HRP Conjugate. Incubate 30 min at 37℃. Aspirate and wash 5 times.

5.Add 100 μL Substrate Mixture Solution. Incubate for 5 min at 37℃.

6.Fluorescence appeared. Measure the RLU value with the Chemiluminescence immunoassay analyzer. Calculation of the results.

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