Based on 10 reviews
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😃 Quality Assurance Service Corporation is amazing! Their toxicology controls are of the highest quality and their customer service is outstanding. I've been a loyal customer for years and I've never been disappointed. Highly recommended!
👍 Quality Assurance Service Corporation is the best! Their toxicology controls have helped me a lot in my work. The accuracy and reliability of their products are unmatched. I love the convenience of ordering from their website too. Keep up the good work!
I recently purchased some toxicology controls from toxicologycontrols.com and I'm really impressed with the quality. The controls are reliable and accurate. The website is easy to navigate and the ordering process was smooth. The shipping was fast as well. Overall, I'm satisfied with my purchase.
I recently purchased some toxicology controls online and I'm really happy with the quality. The controls are reliable and accurate, exactly what I needed for my research. The company provided fast shipping and the ordering process was hassle-free. I will definitely purchase again.
Quality Assurance Service Corporation provides a great service! Their commitment to excellence is truly commendable. I have been using their toxicology controls for a while now and I have never been disappointed. The quality of their products is always top-notch and their customer service is exceptional. I highly recommend them!
Quality Assurance Service Corporation is a trustworthy company. I have been using their toxicology controls for a few months now and they have never let me down. The quality of their products is consistently high and their customer service is excellent. I highly recommend them!
I have been using toxicology controls from Quality Assurance Service Corporation for my research for quite some time now. The quality of their controls is consistently excellent and their customer service is top-notch. Highly satisfied with their products!
👌 Quality Assurance Service Corporation provides exceptional toxicology controls. Their products are accurate, reliable, and easy to use. The ordering process is straightforward and the shipping is fast. Great company!
I've been using Quality Assurance Service Corporation's toxicology controls for quite some time now and I'm extremely satisfied. Their products are of excellent quality and their customer service is exceptional. Highly recommend them to everyone in need of reliable controls!
I recently discovered Quality Assurance Service Corporation's toxicology controls and I'm impressed with the quality. Their controls are accurate and reliable, meeting all my needs. The ordering process was easy and the delivery was prompt. Highly recommended!
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Quality Assurance Service Corporation was founded in 1981, and is registered with the FDA as a manufacturer of Diagnostic Materials. Their staff includes a former inspector for CAP-FUDT and SAMHSA who is available for consultation. A QAS representative is available Monday through Friday to answer questions, schedule consultations and provide pricing information. They manufacture custom controls to your specifications, using drug-free human whole blood, urine or serum. Pure analytes or their metabolites are added according to client instructions and then frozen or lyophilized. They aliquot any size from 2ml to 500ml for frozen products and 5ml to 50ml for lyophilized urine products and 2ml to 25ml for serum and blood products. Prices are determined from number of analytes, aliquot size, total volume and lyophilized or frozen state of product.