We offer many convenient methods for ordering your products: 

Online:

To order online

1. Login to website with your email and password. If you do not have a login, please request an account using the Login/Register link.

2. Navigate to your product of interest by using the search feature at the top of our site or selecting the product category until you find your product.  

3. Select your desired quantity and use the "add to cart" button to add each product to the cart.

4. Review the items in your shopping cart and choose the check out button once your order is accurate. If the shipping or billing information is not correct, direct your question to us by [email protected].

5. Once all your information is correct, the next step takes you to the Shipping & Payment Method page. Once completed, select Next to go to the payment page.

6. Enter your payment details and finish peyment. You will receive an order confirmation by email.

7. If country option is not available, find your local distributor or contact us.

By phone, email

If ordering by email, send us your institution's purchase order form. Please be sure to include the following information:

1. Name of institution or company

2. Account number (if available) Shipping address

3. Billing address Catalog number and description

4. Quantity and size required

5. Name and phone number of the purchaser

6. Korain biotech quotation number (if applicable)

7. If you cannot find the size or format you need in our catalog, please see our custom services section.

Most of our products have a guaranteed shelf life until their expiration date, when under proper storage and handling conditions as instructed on our product data sheets. For recombinant proteins, the minimum guaranteed shelf-life is 12 months from the date of receipt by the end-user.

Products are sold for research or laboratory use only and are not to be administered to humans or used for medical diagnostics.

For products purchased directly from BT Lab and its authorised distributors if the product does not perform as described on the datasheet associated with the product(such as incorrect catalog number products, damaged packaging, or inaccurate volumes), customer must report BT Lab within within 30 days of receipt. BT Lab will then examine details of customer's protocol to determine whether the problem is protocol related or product related. 

For protocol-related problems, BT Lab experts will provide reasonable independent advice.For product-related problems, a replacement or refund will be offered as customers sole remedy. Customer must obtain written authorization from BT LAB for replacement of refund. ELISA kit, antibodies, protein and other reagent are not eligible to be returned. To request a replacement, if you purchase from our distributor, please contact them. If you purchase online, please contact us via E-mail: [email protected].

We accept replacement within 30 days on the receipt of the items. You are sure to feedback to our customer service timely via E-mail: [email protected].

The replacement of product should be in the prescribed days only. After that you are not eligible for return or refund of the item.

Items in special counter have no refund nor exchange without quality problems. To request a refund, if you purchase from our distributor, please contact them. If you purchase online, please diret to us via E-mail: [email protected] with order information including lot number, complete billing address and telephone number readily available, so we can better assist you with your request.

Any damaged or defective product or any missing items or its parts which are not according to as ordered, we will ship a replacement or replenishment item at the earliest possible with no extra shipping cost to you.

Any of your own reasons, we do not bear the cost of replacement.

New ordering cut-off time for next day delivery. In an effort to continue providing the highest level of customer satisfaction and service, Korain Biotech has changed the daily ordering cut-off time for next day delivery from 4 pm CST Monday through Friday to 5 pm CST Monday through Friday. Orders can still be placed on Friday, but these will not be shipped for next day delivery. This change is taking place due to the very high demand, and our desire to continue fulfilling all orders in a timely fashion for our customers. We are dedicated to continuing our delivery commitment and will be able to do so more efficiently with this change. We appreciate your business and your understanding. Shipping and handling charges are added directly to your invoice. For standard orders to worldwide, shipping charges vary by product package size.

Delivery times and shipping charges for orders processed outside China vary. If you would like to inquire about processing and shipping time, please contact your local distributor.

Most products are shipped at ambient temperature. Our products are sufficiently stable to maintain optimal performance after overnight shipping.

1. State "Bioassay Technology Laboratory" or "Shanghai Korain Biotech Co" as the source of     the product you purchased.

2. Include the catalogue number for BT LAB products (e.g. Bioassay Technology Laboratory,  E0082Hu; BT-AP00026)

3. Mention the species samples experimented on.

4. Mention the tested applications, dilution range, concentrations, etc. 

Matrix effects, or the effect that the other substances in your sample might have on the ability to detect your specific target protein, are most commonly observed when using plasma and serum samples. Matrix components can affect the binding of antibody to protein or alter the signal-to-noise ratio.

Preparing the sample in the wrong way leads that the sample may not contain the analyte.A matrix effect interfere may be masking the detection.The sample or the antibody in the kit may be contaminated.Samples contain cytokine levels above assay range, you should choose the right kit with proper assay range.

The kits require 40 uL.

No, we do not recommend combining reagents from different ELISA kits or manufacturers. We cannot guarantee the performance of the kit if you combine reagents from different kits or manufacturers.

Generally BT LAB kits are validated for serum, plasma and cell culture supernat. However, the samples validated in an ELISA can vary from different products. The product datasheet and product-specific web page states all sample types that have been validated for use with the ELISA kit. References may exist for other sample types.

BT LAB's ELISA plates have removable strips of wells. Unused wells can be removed from the plate and returned to the foil pouch, store it at 2-8°C for up to one month.

Most of our products have a guaranteed shelf life until their expiration date, when under proper storage and handling conditions as instructed on our product data sheets. For recombinant proteins, the minimum guaranteed shelf-life is 12 months from the date of receipt by the end-user.

All of antibodies are generated with peptides designed using the database corresponding to the primary species listed in the datasheet. Generally they are human, mouse or rat. This species was then confirmed with the western blot validation data shown for each antibody in the appropriate species. If we do not obtain positive results in one species, we do not list that species. But the cell line we test possibly contains a low level of particular protein or the inductions we used do not work in that particular cell line. We suggest you compare the peptide sequence between the species you are studying and the species that BT Lab's antibody was raised against. In most cases, BT Lab's antibodies are raised against the human protein sequence and are highly purified using affinity chromatography.

The instruction specifies the intended use for BT Lab's antibody. Any procedure not specified in the instruction should be validated by user.

Generally BT Lab offers antibodies with a purity higher than 96%.

Please store the antibody at -20°C.