• Promotion
ELISA Kit for Prolactin (PRL)

LTH; Luteotropic Hormone


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


Matrices listed below were spiked with certain level of recombinant Prolactin (PRL) and the recovery rates were calculated by comparing the measured value to the expected amount of Prolactin (PRL) in samples.

Matrix Recovery range (%) Average(%)
serum(n=5) 96-104 101
EDTA plasma(n=5) 80-97 86
heparin plasma(n=5) 84-104 101


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


The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Prolactin (PRL) and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.

Sample 1:2 1:4 1:8 1:16
serum(n=5) 97-105% 97-105% 78-92% 92-101%
EDTA plasma(n=5) 80-98% 83-99% 82-90% 96-103%
heparin plasma(n=5) 82-97% 80-93% 86-96% 79-93%


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.

Reagents and materials provided

Reagents Quantity Reagents Quantity
Pre-coated, ready to use 96-well strip plate 1 Plate sealer for 96 wells 4
Standard 2 Standard Diluent 1×20mL
Detection Reagent A 1×120µL Assay Diluent A 1×12mL
Detection Reagent B 1×120µL Assay Diluent B 1×12mL
TMB Substrate 1×9mL Stop Solution 1×6mL
Wash Buffer (30 × concentrate) 1×20mL Instruction manual 1

Assay procedure summary

1. Prepare all reagents, samples and standards;
2. Add 100µL standard or sample to each well. Incubate 1 hours at 37°C;
3. Aspirate and add 100µL prepared Detection Reagent A. Incubate 1 hour at 37°C;
4. Aspirate and wash 3 times;
5. Add 100µL prepared Detection Reagent B. Incubate 30 minutes at 37°C;
6. Aspirate and wash 5 times;
7. Add 90µL Substrate Solution. Incubate 10-20 minutes at 37°C;
8. Add 50µL Stop Solution. Read at 450nm immediately.



Magazine Reference
The Journal of Biological Chemistry In Vivo Evidence for Epidermal Growth Factor Receptor (EGFR)-mediated Release of Prolactin from the Pituitary Gland Jcb: 39297
Journal of Clinical Neuroscience TLR9 expression is associated with prognosis in patients with glioblastoma multiforme ScienceDirect: S0967586811003572
Sensors and Actuators B: Chemical Determination of prolactin hormone in serum and urine using an electrochemical immunosensor based on poly(pyrrolepropionic acid)/carbon nanotubes hybrid modified electrodes Sciencedirect:S0925400514000720
Veterinary Word Effect of extended photoperiod during winter on growth and onset of puberty in Murrah buffalo heifers Pubmed:27051212
Journal of Dairy Science Effect of thermal stress on physiological, hormonal and haematological parameters in Tharparkar and Karan Fries calves publication:306322503
Catalog No. Related products for research use of Homo sapiens (Human) Organism species Applications (RESEARCH USE ONLY!)
EPA846Hu61 Eukaryotic Prolactin (PRL) Positive Control; Immunogen; SDS-PAGE; WB.
RPA846Hu01 Recombinant Prolactin (PRL) Positive Control; Immunogen; SDS-PAGE; WB.
PAA846Hu06 Polyclonal Antibody to Prolactin (PRL) WB; IHC; ICC; IP.
PAA846Hu01 Polyclonal Antibody to Prolactin (PRL) WB; IHC; ICC; IP.
LAA846Hu71 Biotin-Linked Polyclonal Antibody to Prolactin (PRL) WB; IHC; ICC.
MAA846Hu22 Monoclonal Antibody to Prolactin (PRL) WB; IHC; ICC; IP.
SEA846Hu ELISA Kit for Prolactin (PRL) Enzyme-linked immunosorbent assay for Antigen Detection.
SCA846Hu CLIA Kit for Prolactin (PRL) Chemiluminescent immunoassay for Antigen Detection.
KSA846Hu01 ELISA Kit DIY Materials for Prolactin (PRL) Main materials for "Do It (ELISA Kit) Yourself".