info@stjohnslabs.com

+44 (0)208 223 3081

USD

Search

Compare
Login / Register
View Cart

Search

All
Primary antibodies
Secondary antibodies
Nanobodies
Kits
- Antibody Pairs
Proteins
Trial Size Antibodies
Blog
Company
- St John's Laboratory Guarantee
- Contact Us

USD
Compare
Login Register

Home
All
Kits
ELISA Kits
Competitive ELISA Kits

All

Refine by

No filters applied

Browse by Size, Reactivity & more Hide Filters Show Filters

Enter the minimum price to filter products by

Enter the maximum price to filter products by

Competitive ELISA Kits

This type of assay is used to measure the antigen concentration via signal interference detection.

Show

Show

Sort By:

Canine ALB (Albumin) Ready-To-Use Competitive ELISA Kit (STJE0013417)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $442.29 - $594.09

Choose Options
Canine Ang1-7 (Angiotensin 1-7) Competitive ELISA Kit (STJE0007116)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $700.35 - $959.79

Choose Options
Canine Ang1-7 (Angiotensin 1-7) Ready-To-Use Competitive ELISA Kit (STJE0013492)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $729.33 - $1,003.95

Choose Options
Canine AngI (Angiotensin I) Competitive ELISA Kit (STJE0007121)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $585.81 - $796.95

Choose Options
Canine AngI (Angiotensin I) Ready-To-Use Competitive ELISA Kit (STJE0013497)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $610.65 - $834.21

Choose Options
Canine C-Peptide (C-Peptide) Competitive ELISA Kit (STJE0007564)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine C-Peptide (C-Peptide) Ready-To-Use Competitive ELISA Kit (STJE0013940)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine CCK (Cholecystokinin) Competitive ELISA Kit (STJE0007741)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine CCK (Cholecystokinin) Ready-To-Use Competitive ELISA Kit (STJE0014116)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine Cortisol (Cortisol) Competitive ELISA Kit (STJE0006718)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Canine E2 (Estradiol) Competitive ELISA Kit (STJE0006717)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Canine E3 (Estriol) Competitive ELISA Kit (STJE0006739)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Canine EDN1 (Endothelin 1) Competitive ELISA Kit (STJE0008570)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $585.81 - $796.95

Choose Options
Canine EDN1 (Endothelin 1) Ready-To-Use Competitive ELISA Kit (STJE0014948)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $610.65 - $834.21

Choose Options
Canine GT (Gastrin) Competitive ELISA Kit (STJE0009352)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine GT (Gastrin) Ready-To-Use Competitive ELISA Kit (STJE0015733)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $715.53 - $983.25

Choose Options
Canine INS (Insulin) Competitive ELISA Kit (STJE0010017)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $785.91 - $1,082.61

Choose Options
Canine INS (Insulin) Ready-To-Use Competitive ELISA Kit (STJE0016402)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $820.41 - $1,132.29

Choose Options
Canine LH (Luteinizing Hormone) Competitive ELISA Kit (STJE0010333)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine LH (Luteinizing Hormone) Ready-To-Use Competitive ELISA Kit (STJE0016720)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine NT-ProBNP (N-Terminal Pro Brain Natriuretic Peptide) Competitive ELISA Kit (STJE0011108)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine NT-ProBNP (N-Terminal Pro Brain Natriuretic Peptide) Ready-To-Use Competitive ELISA Kit (STJE0017495)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine Pg (Progesterone) Competitive ELISA Kit (STJE0006740)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Canine PTH (Parathyroid Hormone) Competitive ELISA Kit (STJE0011741)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine PTH (Parathyroid Hormone) Ready-To-Use Competitive ELISA Kit (STJE0018127)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine TSH (Thyroid Stimulating Hormone) Competitive ELISA Kit (STJE0012836)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine TSH (Thyroid Stimulating Hormone) Ready-To-Use Competitive ELISA Kit (STJE0019224)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
cGMP (Cyclic GMP) Competitive ELISA Kit (STJE0006612)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Chicken CORT (Corticosterone) Competitive ELISA Kit (STJE0006720)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Chicken E2 (Estradiol) Competitive ELISA Kit (STJE0006719)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Chicken E3 (Estriol) Competitive ELISA Kit (STJE0006742)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Chicken GC (Glucagon) Competitive ELISA Kit (STJE0009087)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $657.57 - $901.83

Choose Options
Chicken GC (Glucagon) Ready-To-Use Competitive ELISA Kit (STJE0015467)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $686.55 - $941.85

Choose Options
Chicken GHRL (Ghrelin) Competitive ELISA Kit (STJE0009162)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $629.97 - $863.19

Choose Options
Chicken GHRL (Ghrelin) Ready-To-Use Competitive ELISA Kit (STJE0015542)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $657.57 - $901.83

Choose Options
Chicken GLP1 (Glucagon Like Peptide 1) Competitive ELISA Kit (STJE0009191)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $657.57 - $901.83

Choose Options
Chicken GLP1 (Glucagon Like Peptide 1) Ready-To-Use Competitive ELISA Kit (STJE0015571)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $686.55 - $941.85

Choose Options
Chicken Pg (Progesterone) Competitive ELISA Kit (STJE0006743)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Cr (Creatinine) Competitive ELISA Kit (STJE0006600)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
DA (Dopamine) Competitive ELISA Kit (STJE0006592)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
DHVD3 (1, 25-Dihydroxyvitamin D3) Competitive ELISA Kit (STJE0006577)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
E3 (Estriol) Competitive ELISA Kit (STJE0006636)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
EPI (Epinephrine/Adrenaline) Competitive ELISA Kit (STJE0006591)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Equine GH (Growth Hormone) Competitive ELISA Kit (STJE0009147)

Applications :

ELISA

Reactivity :

Equine

MSRP:

Was:

Now: $694.83 - $954.27

Choose Options
Equine GH (Growth Hormone) Ready-To-Use Competitive ELISA Kit (STJE0015527)

Applications :

ELISA

Reactivity :

Equine

MSRP:

Was:

Now: $725.19 - $998.43

Choose Options
Equine INS (Insulin) Competitive ELISA Kit (STJE0010018)

Applications :

ELISA

Reactivity :

Equine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Equine INS (Insulin) Ready-To-Use Competitive ELISA Kit (STJE0016403)

Applications :

ELISA

Reactivity :

Equine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
FA/VB9 (Folic Acid/Vitamin B9) Competitive ELISA Kit (STJE0006573)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options

Canine ALB (Albumin) Ready-To-Use Competitive ELISA Kit (STJE0013417)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $442.29 - $594.09

Choose Options
Canine Ang1-7 (Angiotensin 1-7) Competitive ELISA Kit (STJE0007116)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $700.35 - $959.79

Choose Options
Canine Ang1-7 (Angiotensin 1-7) Ready-To-Use Competitive ELISA Kit (STJE0013492)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $729.33 - $1,003.95

Choose Options
Canine AngI (Angiotensin I) Competitive ELISA Kit (STJE0007121)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $585.81 - $796.95

Choose Options
Canine AngI (Angiotensin I) Ready-To-Use Competitive ELISA Kit (STJE0013497)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $610.65 - $834.21

Choose Options
Canine C-Peptide (C-Peptide) Competitive ELISA Kit (STJE0007564)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine C-Peptide (C-Peptide) Ready-To-Use Competitive ELISA Kit (STJE0013940)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine CCK (Cholecystokinin) Competitive ELISA Kit (STJE0007741)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine CCK (Cholecystokinin) Ready-To-Use Competitive ELISA Kit (STJE0014116)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine Cortisol (Cortisol) Competitive ELISA Kit (STJE0006718)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Canine E2 (Estradiol) Competitive ELISA Kit (STJE0006717)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Canine E3 (Estriol) Competitive ELISA Kit (STJE0006739)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Canine EDN1 (Endothelin 1) Competitive ELISA Kit (STJE0008570)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $585.81 - $796.95

Choose Options
Canine EDN1 (Endothelin 1) Ready-To-Use Competitive ELISA Kit (STJE0014948)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $610.65 - $834.21

Choose Options
Canine GT (Gastrin) Competitive ELISA Kit (STJE0009352)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine GT (Gastrin) Ready-To-Use Competitive ELISA Kit (STJE0015733)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $715.53 - $983.25

Choose Options
Canine INS (Insulin) Competitive ELISA Kit (STJE0010017)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $785.91 - $1,082.61

Choose Options
Canine INS (Insulin) Ready-To-Use Competitive ELISA Kit (STJE0016402)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $820.41 - $1,132.29

Choose Options
Canine LH (Luteinizing Hormone) Competitive ELISA Kit (STJE0010333)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine LH (Luteinizing Hormone) Ready-To-Use Competitive ELISA Kit (STJE0016720)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine NT-ProBNP (N-Terminal Pro Brain Natriuretic Peptide) Competitive ELISA Kit (STJE0011108)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine NT-ProBNP (N-Terminal Pro Brain Natriuretic Peptide) Ready-To-Use Competitive ELISA Kit (STJE0017495)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine Pg (Progesterone) Competitive ELISA Kit (STJE0006740)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Canine PTH (Parathyroid Hormone) Competitive ELISA Kit (STJE0011741)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine PTH (Parathyroid Hormone) Ready-To-Use Competitive ELISA Kit (STJE0018127)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
Canine TSH (Thyroid Stimulating Hormone) Competitive ELISA Kit (STJE0012836)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Canine TSH (Thyroid Stimulating Hormone) Ready-To-Use Competitive ELISA Kit (STJE0019224)

Applications :

ELISA

Reactivity :

Canine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
cGMP (Cyclic GMP) Competitive ELISA Kit (STJE0006612)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Chicken CORT (Corticosterone) Competitive ELISA Kit (STJE0006720)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Chicken E2 (Estradiol) Competitive ELISA Kit (STJE0006719)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Chicken E3 (Estriol) Competitive ELISA Kit (STJE0006742)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Chicken GC (Glucagon) Competitive ELISA Kit (STJE0009087)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $657.57 - $901.83

Choose Options
Chicken GC (Glucagon) Ready-To-Use Competitive ELISA Kit (STJE0015467)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $686.55 - $941.85

Choose Options
Chicken GHRL (Ghrelin) Competitive ELISA Kit (STJE0009162)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $629.97 - $863.19

Choose Options
Chicken GHRL (Ghrelin) Ready-To-Use Competitive ELISA Kit (STJE0015542)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $657.57 - $901.83

Choose Options
Chicken GLP1 (Glucagon Like Peptide 1) Competitive ELISA Kit (STJE0009191)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $657.57 - $901.83

Choose Options
Chicken GLP1 (Glucagon Like Peptide 1) Ready-To-Use Competitive ELISA Kit (STJE0015571)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $686.55 - $941.85

Choose Options
Chicken Pg (Progesterone) Competitive ELISA Kit (STJE0006743)

Applications :

ELISA

Reactivity :

Chicken

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Cr (Creatinine) Competitive ELISA Kit (STJE0006600)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
DA (Dopamine) Competitive ELISA Kit (STJE0006592)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
DHVD3 (1, 25-Dihydroxyvitamin D3) Competitive ELISA Kit (STJE0006577)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
E3 (Estriol) Competitive ELISA Kit (STJE0006636)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
EPI (Epinephrine/Adrenaline) Competitive ELISA Kit (STJE0006591)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options
Equine GH (Growth Hormone) Competitive ELISA Kit (STJE0009147)

Applications :

ELISA

Reactivity :

Equine

MSRP:

Was:

Now: $694.83 - $954.27

Choose Options
Equine GH (Growth Hormone) Ready-To-Use Competitive ELISA Kit (STJE0015527)

Applications :

ELISA

Reactivity :

Equine

MSRP:

Was:

Now: $725.19 - $998.43

Choose Options
Equine INS (Insulin) Competitive ELISA Kit (STJE0010018)

Applications :

ELISA

Reactivity :

Equine

MSRP:

Was:

Now: $657.57 - $899.07

Choose Options
Equine INS (Insulin) Ready-To-Use Competitive ELISA Kit (STJE0016403)

Applications :

ELISA

Reactivity :

Equine

MSRP:

Was:

Now: $685.17 - $940.47

Choose Options
FA/VB9 (Folic Acid/Vitamin B9) Competitive ELISA Kit (STJE0006573)

Applications :

ELISA

Reactivity :

All

MSRP:

Was:

Now: $225.63 - $493.35

Choose Options

96 of 630 Items

1
2
3
4
5
6
7

!

Footer Start

Information

about us
distributors
privacy policy
terms & conditions
blog

Customer service

contact us
shipping
FAQ
antibody troubleshooting

My Account

my account
order history

Company

St John's Laboratory Ltd
Knowledge Dock Business Centre
University Way
London
E16 2RD, UK

Subscribe

newsletter.subscribe_intro

Email Address

Receive discounts, product insights and technical resources as a subscriber.

© 2026 Product Ecommerce St John's Laboratory Ltd All Rights Reserved.

Terms
Privacy
Cookies