ELISA Kit for Lactoferrin (LTF)

HLF2; LF; GIG12; Lactotransferrin; Growth-inhibiting protein 12; Talalactoferrin; Lfcin-H; Kaliocin-1


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


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

Matrix Recovery range (%) Average(%)
serum(n=5) 84-105 89
EDTA plasma(n=5) 86-101 95
heparin plasma(n=5) 90-98 94


Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Lactoferrin (LTF) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Lactoferrin (LTF) 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 Lactoferrin (LTF) 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) 85-92% 93-101% 86-96% 98-105%
EDTA plasma(n=5) 95-102% 92-105% 86-101% 80-101%
heparin plasma(n=5) 93-101% 87-95% 80-88% 80-98%


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 Citations
The International Journal of Biochemistry & Cell Biology Changes of hepatic lactoferrin gene expression in two mouse models of the acute phase reaction ScienceDirect: S1357272511002524
BMC Veterinary Research Changes in composition of colostrum of Egyptian buffaloes and Holstein cows BioMed: 17466148
Plos One p38MAPK, ERK and PI3K Signaling Pathways Are Involved in C5a-Primed Neutrophils for ANCA-Mediated Activation PlosOne: source
The Journal of Biological Chemistry Sphingolipid Pathway Regulates Innate Immune Responses at the Fetomaternal Interface during Pregnancy Pubmed:25505239
PLoS One Control of Methicillin-Resistant Staphylococcus aureus Pneumonia Utilizing TLR2 Agonist Pam3CSK4 Pubmed:26974438
Bioscience, Biotechnology, and Biochemistry Salivary lactoferrin is transferred into the brain via the sublingual route pubmed:28351211
Pulmonary Pharmacology & Therapeutics Effects of fluticasone propionate and budesonide on the expression of immune defense genes in bronchial epithelial cells Pubmed:29627483
Microbial Pathogenesis TLR2 agonist Pam3CSK4 enhances the antibacterial functions of GM-CSF induced neutrophils to methicillin-resistant Staphylococcus aureus
Assessment of the Diagnostic Value of IL-10 and Lactoferrin by BIRADS Categories in Breast Neoplasms
Catalog No. Related products for research use of Bos taurus; Bovine (Cattle) Organism species Applications (RESEARCH USE ONLY!)
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