This tender invites bids for the purchase of specialized laboratory consumables at the International Center for Chemical and Biological Sciences, University of Karachi, Sindh. The procurement focuses on high-quality QuEChERS AOAC Method Extraction and d-SPE Clean-Up Tubes designed for multi-residue pesticide analysis in food and agricultural samples. These consumables are essential for accurate pesticide residue testing using LC/MS and GC/MS workflows, ensuring compliance with AOAC 2007.01 standards. The scope includes supply of pre-weighed extraction buffer salts and sorbent tubes optimized for removing matrix interferences such as lipids and organic acids, critical for high-fat food samples. The delivery location is Karachi, with a required delivery timeline of five weeks from contract award. The technical specifications demand precise sorbent compositions and packaging in centrifuge tubes, supporting reproducibility and accuracy in laboratory workflows. Bidders must hold valid tax registrations and demonstrate at least three years of relevant experience with an annual turnover matching the bid amount. Compliance with PEC categories and FBR/ATL registration is advised to ensure eligibility. The bid security is set at 2% of the bid value, with a performance guarantee of 5% of the purchase order value. Bidders should prepare a complete company profile and submit bids through the EPADS online portal. The submission deadline is set for 03 March 2026 at 11:30 AM, with bid opening at 12:00 PM the same day via EPADS. Physical submission of the original bid security pay order to the Purchase Department ICCBS is mandatory before the deadline. The address for submission is the Purchase Office, H.E.J. Research Institute of Chemistry, University of Karachi, Karachi-75270. Pro-Tip: Ensure the original Bid Security Pay Order reaches the Purchase Department before the deadline to avoid disqualification. Also, carefully review the bid summary sheet requirements as incomplete submissions will be rejected outright.