april 24, 2024

Mouse TFR(Transferrin Receptor) ELISA Kit

Mouse TFR(Transferrin Receptor) ELISA Kit 

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Mouse TFR(Transferrin Receptor) ELISA Kit

ELK4575-48T 48T Ask for price
Description: 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 Mouse TFR. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Mouse TFR. 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 Mouse TFR, 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 Mouse TFR in the samples is then determined by comparing the OD of the samples to the standard curve.

Mouse TFR(Transferrin Receptor) ELISA Kit

ELK4575-96T 96T Ask for price
Description: 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 Mouse TFR. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Mouse TFR. 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 Mouse TFR, 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 Mouse TFR in the samples is then determined by comparing the OD of the samples to the standard curve.

Mouse Transferrin Receptor ELISA Kit (TFR)

RK03224 96 Tests
EUR 625.2

Mouse transferrin receptor,TFR ELISA Kit

CN-02721M1 96T
EUR 556.8

Mouse transferrin receptor,TFR ELISA Kit

CN-02721M2 48T
EUR 375.6

Mouse Transferrin Receptor (TFR) ELISA Kit

DLR-TFR-Mu-48T 48T
EUR 609.6
Description: A sandwich quantitative ELISA assay kit for detection of Mouse Transferrin Receptor (TFR) in samples from serum, plasma, tissue homogenates or other biological fluids.

Mouse Transferrin Receptor (TFR) ELISA Kit

DLR-TFR-Mu-96T 96T
EUR 793.2
Description: A sandwich quantitative ELISA assay kit for detection of Mouse Transferrin Receptor (TFR) in samples from serum, plasma, tissue homogenates or other biological fluids.

Mouse transferrin receptor, TFR ELISA Kit

CSB-E08389m-24T 1 plate of 24 wells
EUR 198
Description: Quantitativesandwich ELISA kit for measuring Mouse transferrin receptor, TFR in samples from serum, plasma, tissue homogenates. A new trial version of the kit, which allows you to test the kit in your application at a reasonable price.

Mouse transferrin receptor, TFR ELISA Kit

1-CSB-E08389m
  • EUR 1135.20
  • EUR 6938.40
  • EUR 3672.00
  • 1 plate of 96 wells
  • 10 plates of 96 wells each
  • 5 plates of 96 wells each
Description: Quantitativesandwich ELISA kit for measuring Mouse transferrin receptor, TFR in samples from serum, plasma, tissue homogenates. Now available in a cost efficient pack of 5 plates of 96 wells each, conveniently packed along with the other reagents in 5 separate kits.

Mouse transferrin receptor(TFR)ELISA Kit

GA-E0334MS-48T 48T
EUR 403.2

Mouse transferrin receptor(TFR)ELISA Kit

GA-E0334MS-96T 96T
EUR 640.8

Mouse Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Mu-48Tests 48 Tests
EUR 640.8

Mouse Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Mu-96Tests 96 Tests
EUR 890.4

Mouse Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Mu-48Tests 48 Tests
EUR 613.2

Mouse Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Mu-96Tests 96 Tests
EUR 850.8

Mouse transferrin receptor(TFR)ELISA Kit

QY-E21493 96T
EUR 433.2

Mouse Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Mu-48T 48T
EUR 465.47
Description: serum, plasma, tissue homogenates and other biological fluids.

Mouse Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Mu-96T 96T
EUR 664.97
Description: serum, plasma, tissue homogenates and other biological fluids.

Mouse Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Mu-48T 48T
EUR 443.3
Description: serum, plasma, tissue homogenates and other biological fluids.

Mouse Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Mu-96T 96T
EUR 633.3
Description: serum, plasma, tissue homogenates and other biological fluids.

Mouse Transferrin Receptor (TFR) ELISA Kit

SEB171Mu-10x96wellstestplate 10x96-wells test plate
EUR 5552.14
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Mouse Transferrin Receptor (TFR) in serum, plasma, tissue homogenates and other biological fluids.

Mouse Transferrin Receptor (TFR) ELISA Kit

SEB171Mu-1x48wellstestplate 1x48-wells test plate
EUR 562.42
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Mouse Transferrin Receptor (TFR) in serum, plasma, tissue homogenates and other biological fluids.

Mouse Transferrin Receptor (TFR) ELISA Kit

SEB171Mu-1x96wellstestplate 1x96-wells test plate
EUR 752.02
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Mouse Transferrin Receptor (TFR) in serum, plasma, tissue homogenates and other biological fluids.

Mouse Transferrin Receptor (TFR) ELISA Kit

SEB171Mu-5x96wellstestplate 5x96-wells test plate
EUR 3024.07
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Mouse Transferrin Receptor (TFR) in serum, plasma, tissue homogenates and other biological fluids.

Mouse Transferrin Receptor (TFR) ELISA Kit

4-SEB171Mu
  • EUR 5612.40
  • EUR 2965.20
  • EUR 752.40
  • 10 plates of 96 wells
  • 5 plates of 96 wells
  • 1 plate of 96 wells
Description: Enzyme-linked immunosorbent assay based on the Double-antibody Sandwich method for detection of Mouse Transferrin Receptor (TFR) in samples from serum, plasma, tissue homogenates and other biological fluids with no significant corss-reactivity with analogues from other species.

Mouse transferrin receptor,TFR ELISA Kit

EKC40435-48T 48T
EUR 631.26

Mouse transferrin receptor,TFR ELISA Kit

EKC40435-5x96T 5x96T
EUR 4283.55

Mouse transferrin receptor,TFR ELISA Kit

EKC40435-96T 96T
EUR 901.8

Mouse Transferrin Receptor (TFR) ELISA Kit

DL-TFR-Mu 96T
EUR 432
Description: serum, plasma, tissue homogenates or other biological fluids.

Mouse Transferrin Receptor (TFR) ELISA Kit

DLR-TFR-Mu 96T
EUR 454
Description: serum, plasma, tissue homogenates or other biological fluids.

Mouse Transferrin Receptor (TFR) ELISA Kit

EKU07789-48T 48T
EUR 542.78

Mouse Transferrin Receptor (TFR) ELISA Kit

EKU07789-5x96T 5x96T
EUR 3683.15

Mouse Transferrin Receptor (TFR) ELISA Kit

EKU07789-96T 96T
EUR 775.4

Mouse Transferrin Receptor (TFR) ELISA Kit

EKN48900-48T 48T
EUR 370.02

Mouse Transferrin Receptor (TFR) ELISA Kit

EKN48900-5x96T 5x96T
EUR 2510.85

Mouse Transferrin Receptor (TFR) ELISA Kit

EKN48900-96T 96T
EUR 528.6

Mouse Transferrin receptor (TFR) ELISA Kit

RK07299 96T
EUR 280

Mouse transferrin receptor,TFR ELISA Kit

SL0535Mo -
EUR 528

Mouse transferrin receptor,TFR ELISA Kit

YLA0772MO-48T 48T
EUR 465

Mouse transferrin receptor,TFR ELISA Kit

YLA0772MO-96T 96T
EUR 600

Mouse transferrin receptor,TFR Elisa Kit

EK730346 96 Wells
EUR 0.67

Mouse Transferrin Receptor (TFR) ELISA Kit

EK16854 96Т
EUR 768

ELISA kit for Mouse TFR (Transferrin Receptor)

ELK4575 1 plate of 96 wells
EUR 518.4
Description: A sandwich ELISA kit for detection of Transferrin Receptor from Mouse in samples from blood, serum, plasma, cell culture fluid and other biological fluids.

TFR ELISA Kit| Mouse Transferrin Receptor ELISA Kit

EF013928 96 Tests
EUR 826.8

Rat TFR(Transferrin Receptor) ELISA Kit

ER1375 96T
EUR 628.92
Description: Method of detection: Double Antibody, Sandwich ELISA;Reacts with: Rattus;Sensitivity: 0.188 ng/ml

Rat TFR(Transferrin Receptor) ELISA Kit

EKF58402-48T 48T
EUR 396.9

Rat TFR(Transferrin Receptor) ELISA Kit

EKF58402-5x96T 5x96T
EUR 2693.25

Rat TFR(Transferrin Receptor) ELISA Kit

EKF58402-96T 96T
EUR 567

Rat TFR(Transferrin Receptor) ELISA Kit

ELK6079-48T 48T Ask for price
Description: 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 Rat TFR. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Rat TFR. 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 Rat TFR, 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 Rat TFR in the samples is then determined by comparing the OD of the samples to the standard curve.

Rat TFR(Transferrin Receptor) ELISA Kit

ELK6079-96T 96T Ask for price
Description: 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 Rat TFR. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Rat TFR. 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 Rat TFR, 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 Rat TFR in the samples is then determined by comparing the OD of the samples to the standard curve.

Human TFR(Transferrin Receptor) ELISA Kit

ELK2912-48T 48T Ask for price
Description: 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 Human TFR. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human TFR. 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 Human TFR, 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 Human TFR in the samples is then determined by comparing the OD of the samples to the standard curve.

Human TFR(Transferrin Receptor) ELISA Kit

ELK2912-96T 96T Ask for price
Description: 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 Human TFR. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human TFR. 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 Human TFR, 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 Human TFR in the samples is then determined by comparing the OD of the samples to the standard curve.

Mouse transferrin Receptor, TFR GENLISA ELISA

KLM0321 1 x 96 wells
EUR 341

Rat Transferrin Receptor ELISA Kit (TFR)

RK03978 96 Tests
EUR 625.2

Human Transferrin Receptor ELISA Kit (TFR)

RK02377 96 Tests
EUR 625.2

Rat transferrin receptor,TFR ELISA Kit

CN-01844R1 96T
EUR 561.6

Rat transferrin receptor,TFR ELISA Kit

CN-01844R2 48T
EUR 381.6

Rat Transferrin Receptor (TFR) ELISA Kit

DLR-TFR-Ra-48T 48T
EUR 633.6
Description: A sandwich quantitative ELISA assay kit for detection of Rat Transferrin Receptor (TFR) in samples from serum, plasma or other biological fluids.

Rat Transferrin Receptor (TFR) ELISA Kit

DLR-TFR-Ra-96T 96T
EUR 828
Description: A sandwich quantitative ELISA assay kit for detection of Rat Transferrin Receptor (TFR) in samples from serum, plasma or other biological fluids.

Pig transferrin receptor(TFR) ELISA Kit

CSB-E13481p-24T 1 plate of 24 wells
EUR 198
Description: Quantitativesandwich ELISA kit for measuring Pig transferrin receptor (TFR) in samples from serum, plasma, tissue homogenates. A new trial version of the kit, which allows you to test the kit in your application at a reasonable price.

Pig transferrin receptor(TFR) ELISA Kit

1-CSB-E13481p
  • EUR 843.60
  • EUR 5811.60
  • EUR 3084.00
  • 1 plate of 96 wells
  • 10 plates of 96 wells each
  • 5 plates of 96 wells each
Description: Quantitativesandwich ELISA kit for measuring Pig transferrin receptor(TFR) in samples from serum, plasma, tissue homogenates. Now available in a cost efficient pack of 5 plates of 96 wells each, conveniently packed along with the other reagents in 5 separate kits.

Rat transferrin receptor(TFR)ELISA Kit

GA-E0790RT-48T 48T
EUR 380.4

Rat transferrin receptor(TFR)ELISA Kit

GA-E0790RT-96T 96T
EUR 595.2

Rat Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Ra-48Tests 48 Tests
EUR 669.6

Rat Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Ra-96Tests 96 Tests
EUR 931.2

Rat Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Ra-48Tests 48 Tests
EUR 640.8

Rat Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Ra-96Tests 96 Tests
EUR 890.4

Rat transferrin receptor(TFR)ELISA Kit

QY-E10862 96T
EUR 433.2

Rat Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Ra-48T 48T
EUR 488.78
Description: serum, plasma and other biological fluids.

Rat Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Ra-96T 96T
EUR 698.25
Description: serum, plasma and other biological fluids.

Rat Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Ra-48T 48T
EUR 465.5
Description: serum, plasma and other biological fluids.

Rat Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Ra-96T 96T
EUR 665
Description: serum, plasma and other biological fluids.

Rat Transferrin Receptor (TFR) ELISA Kit

SEB171Ra-10x96wellstestplate 10x96-wells test plate
EUR 5850.59
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Rat Transferrin Receptor (TFR) in serum, plasma and other biological fluids.

Rat Transferrin Receptor (TFR) ELISA Kit

SEB171Ra-1x48wellstestplate 1x48-wells test plate
EUR 586.99
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Rat Transferrin Receptor (TFR) in serum, plasma and other biological fluids.

Rat Transferrin Receptor (TFR) ELISA Kit

SEB171Ra-1x96wellstestplate 1x96-wells test plate
EUR 787.13
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Rat Transferrin Receptor (TFR) in serum, plasma and other biological fluids.

Rat Transferrin Receptor (TFR) ELISA Kit

SEB171Ra-5x96wellstestplate 5x96-wells test plate
EUR 3182.08
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Rat Transferrin Receptor (TFR) in serum, plasma and other biological fluids.

Rat Transferrin Receptor (TFR) ELISA Kit

4-SEB171Ra
  • EUR 5911.20
  • EUR 3122.40
  • EUR 787.20
  • 10 plates of 96 wells
  • 5 plates of 96 wells
  • 1 plate of 96 wells
Description: Enzyme-linked immunosorbent assay based on the Double-antibody Sandwich method for detection of Rat Transferrin Receptor (TFR) in samples from Serum, plasma and other biological fluids with no significant corss-reactivity with analogues from other species.

Rat Transferrin Receptor (TFR) ELISA Kit  

NSL1204r 96 Tests
EUR 498

Rat Transferrin Receptor (TFR) ELISA Kit

DL-TFR-Ra 96T
EUR 454
Description: serum, plasma or other biological fluids.

Rat Transferrin Receptor (TFR) ELISA Kit

DLR-TFR-Ra 96T
EUR 477
Description: serum, plasma or other biological fluids.

Rat Transferrin Receptor (TFR) ELISA Kit

EKU07790-48T 48T
EUR 573.02

Rat Transferrin Receptor (TFR) ELISA Kit

EKU07790-5x96T 5x96T
EUR 3888.35

Rat Transferrin Receptor (TFR) ELISA Kit

EKU07790-96T 96T
EUR 818.6

Rat Transferrin Receptor (TFR) ELISA Kit

EKN48901-48T 48T
EUR 390.46

Rat Transferrin Receptor (TFR) ELISA Kit

EKN48901-5x96T 5x96T
EUR 2649.55

Rat Transferrin Receptor (TFR) ELISA Kit

EKN48901-96T 96T
EUR 557.8

Pig Transferrin receptor (TFR) ELISA Kit

RK07300 96T
EUR 280

Rat transferrin receptor,TFR ELISA Kit

SL0703Ra -
EUR 498

Rat transferrin receptor,TFR ELISA Kit

YLA0574RA-48T 48T
EUR 465

Rat transferrin receptor,TFR ELISA Kit

YLA0574RA-96T 96T
EUR 600

Rat transferrin receptor(TFR) Elisa Kit

EK720885 96 Wells
EUR 0.61

Rat Transferrin Receptor (TFR) ELISA Kit

EK16855 96Т
EUR 768

ELISA Kit for Transferrin Receptor (TFR)

SEB171Hu 96Т
EUR 665

ELISA Kit for Transferrin Receptor (TFR)

SEB171Mu 96Т
EUR 684

ELISA Kit for Transferrin Receptor (TFR)

SEB171Ra 96Т
EUR 722

Mouse Transferrin Receptor (TFR) CLIA Kit

20-abx492467
  • EUR 10282.80
  • EUR 5472.00
  • EUR 1262.40
  • 10 × 96 tests
  • 5 × 96 tests
  • 96 tests

Goat Transferrin Receptor(TFR) ELISA Kit

NSL0102Gt 96T
EUR 528

Human transferrin receptor,TFR ELISA Kit

201-12-0260 96 tests
EUR 528
Description: A quantitative ELISA kit for measuring Human in samples from biological fluids.

Human Transferrin Receptor (TFR) ELISA Kit

abx052978-96tests 96 tests
EUR 943.2

Human transferrin receptor,TFR ELISA Kit

CN-04659H1 96T
EUR 536.4

Human transferrin receptor,TFR ELISA Kit

CN-04659H2 48T
EUR 355.2

Human Transferrin Receptor (TFR) ELISA Kit

DLR-TFR-Hu-48T 48T
EUR 597.6
Description: A sandwich quantitative ELISA assay kit for detection of Human Transferrin Receptor (TFR) in samples from serum, plasma, tissue homogenates, cell lysates or other biological fluids.

Human Transferrin Receptor (TFR) ELISA Kit

DLR-TFR-Hu-96T 96T
EUR 776.4
Description: A sandwich quantitative ELISA assay kit for detection of Human Transferrin Receptor (TFR) in samples from serum, plasma, tissue homogenates, cell lysates or other biological fluids.

Human Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Hu-48Tests 48 Tests
EUR 626.4

Human Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Hu-96Tests 96 Tests
EUR 868.8

Human Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Hu-48Tests 48 Tests
EUR 600

Human Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Hu-96Tests 96 Tests
EUR 830.4

Human Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Hu-48T 48T
EUR 453.92
Description: serum, plasma, tissue homogenates, cell lysates and other biological fluids.

Human Transferrin Receptor (TFR) ELISA Kit

RDR-TFR-Hu-96T 96T
EUR 648.38
Description: serum, plasma, tissue homogenates, cell lysates and other biological fluids.

Human Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Hu-48T 48T
EUR 432.3
Description: serum, plasma, tissue homogenates, cell lysates and other biological fluids.

Human Transferrin Receptor (TFR) ELISA Kit

RD-TFR-Hu-96T 96T
EUR 617.5
Description: serum, plasma, tissue homogenates, cell lysates and other biological fluids.

Human Transferrin Receptor (TFR) ELISA Kit

SEB171Hu-10x96wellstestplate 10x96-wells test plate
EUR 5402.92
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Human Transferrin Receptor (TFR) in serum, plasma, tissue homogenates, cell lysates and other biological fluids.

Human Transferrin Receptor (TFR) ELISA Kit

SEB171Hu-1x48wellstestplate 1x48-wells test plate
EUR 550.13
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Human Transferrin Receptor (TFR) in serum, plasma, tissue homogenates, cell lysates and other biological fluids.

Human Transferrin Receptor (TFR) ELISA Kit

SEB171Hu-1x96wellstestplate 1x96-wells test plate
EUR 734.46
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Human Transferrin Receptor (TFR) in serum, plasma, tissue homogenates, cell lysates and other biological fluids.

Human Transferrin Receptor (TFR) ELISA Kit

SEB171Hu-5x96wellstestplate 5x96-wells test plate
EUR 2945.08
Description: This is Double-antibody Sandwich Enzyme-linked immunosorbent assay for detection of Human Transferrin Receptor (TFR) in serum, plasma, tissue homogenates, cell lysates and other biological fluids.

Mouse TFR(Transferrin Receptor) ELISA Kit